Termohigrómetro y termómetro para interiores Bluetooth TempPro TP359 — 80 m de alcance, aplicación inteligente
Termohigrómetro y termómetro para interiores Bluetooth TempPro TP359 — 80 m de alcance, aplicación inteligente
Termohigrómetro y termómetro para interiores Bluetooth TempPro TP359 — 80 m de alcance, aplicación inteligente
Termohigrómetro y termómetro para interiores Bluetooth TempPro TP359 — 80 m de alcance, aplicación inteligente
Termohigrómetro y termómetro para interiores Bluetooth TempPro TP359 — 80 m de alcance, aplicación inteligente
Termohigrómetro y termómetro para interiores Bluetooth TempPro TP359 — 80 m de alcance, aplicación inteligente
Termohigrómetro y termómetro para interiores Bluetooth TempPro TP359 — 80 m de alcance, aplicación inteligente
Termohigrómetro y termómetro para interiores Bluetooth TempPro TP359 — 80 m de alcance, aplicación inteligente
Termohigrómetro y termómetro para interiores Bluetooth TempPro TP359 — 80 m de alcance, aplicación inteligente
Termohigrómetro y termómetro para interiores Bluetooth TempPro TP359 — 80 m de alcance, aplicación inteligente
1 / 10
Termohigrómetro y termómetro para interiores Bluetooth TempPro TP359 — 80 m de alcance, aplicación inteligente
Termohigrómetro y termómetro para interiores Bluetooth TempPro TP359 — 80 m de alcance, aplicación inteligente
Termohigrómetro y termómetro para interiores Bluetooth TempPro TP359 — 80 m de alcance, aplicación inteligente
Termohigrómetro y termómetro para interiores Bluetooth TempPro TP359 — 80 m de alcance, aplicación inteligente
Termohigrómetro y termómetro para interiores Bluetooth TempPro TP359 — 80 m de alcance, aplicación inteligente
Termohigrómetro y termómetro para interiores Bluetooth TempPro TP359 — 80 m de alcance, aplicación inteligente
Termohigrómetro y termómetro para interiores Bluetooth TempPro TP359 — 80 m de alcance, aplicación inteligente
Termohigrómetro y termómetro para interiores Bluetooth TempPro TP359 — 80 m de alcance, aplicación inteligente
Termohigrómetro y termómetro para interiores Bluetooth TempPro TP359 — 80 m de alcance, aplicación inteligente
Termohigrómetro y termómetro para interiores Bluetooth TempPro TP359 — 80 m de alcance, aplicación inteligente

Controle el clima de su hogar directamente desde su teléfono — precisión de ±0.9°F/±2% HR, registros de máximos/mínimos y actualizaciones de la aplicación en tiempo real en un rango de 80 m para dormitorio, sala de estar, invernadero, bodega y baño.

Precio habitual $21.99
Precio habitual $24.99 Precio de oferta $21.99
Oferta Agotado
Termohigrómetro y termómetro para interiores Bluetooth TempPro TP359 — 80 m de alcance, aplicación inteligente
Termohigrómetro y termómetro para interiores Bluetooth TempPro TP359 — 80 m de alcance, aplicación inteligente
Termohigrómetro y termómetro para interiores Bluetooth TempPro TP359 — 80 m de alcance, aplicación inteligente
Termohigrómetro y termómetro para interiores Bluetooth TempPro TP359 — 80 m de alcance, aplicación inteligente

Envío en 3 días garantizado para los 48 estados contiguos. Se exceptúan Alaska, Hawái y los territorios de EE. UU.

Termohigrómetro y termómetro para interiores Bluetooth TempPro TP359 — 80 m de alcance, aplicación inteligente Envío gratis
Termohigrómetro y termómetro para interiores Bluetooth TempPro TP359 — 80 m de alcance, aplicación inteligente Garantía de 3 años después del registro
Termohigrómetro y termómetro para interiores Bluetooth TempPro TP359 — 80 m de alcance, aplicación inteligente garantía de devolución de dinero de 30 días

PARA QUIÉN ES MEJOR

Ideal para:

Para el coleccionista de vinos, el propietario de un invernadero o el custodio de instrumentos que necesita las lecturas más precisas: Los sensores Sensirion de fabricación suiza ofrecen una precisión de ±0.5°F, la más ajustada en la línea Bluetooth. Las condiciones se miden exactamente, no aproximadamente, para que pueda confiar en lo que ve.

Para el propietario detallista que rastrea tendencias a largo plazo en espacios sensibles: La aplicación almacena 2 años de datos con gráficos dinámicos. Observe cómo la humedad en una bodega o en un vivero cambia según las estaciones y responda antes de que las condiciones causen daños.

Para cualquiera que desee monitoreo de humedad por Bluetooth con una gran pantalla retroiluminada: La pantalla LCD retroiluminada de 3.5" muestra las lecturas claramente en cualquier luz. Las alertas personalizadas notifican a su teléfono en el momento en que la temperatura o la humedad se mueven fuera de su rango establecido. Sin registro, no se necesita Wi-Fi.

No ideal para:

Aquellos que prefieren una pantalla sencilla e independiente sin necesidad de un teléfono: El TP359 está basado en una aplicación. Para verificar las lecturas de un vistazo sin tocar un teléfono, el TP60B o el TP65B muestran todos los datos directamente en la pantalla del dispositivo.

CARACTERÍSTICAS

Precisión confiable: Gracias a un sensor Sensirion de fabricación suiza, este termómetro e higrómetro digital tiene una precisión de ±0.5 °F y ±2 % de humedad relativa, lo que permite detectar incluso los cambios más pequeños. Olvídese de las fluctuaciones en la temperatura y de los daños a objetos sensibles como vino, instrumentos o plantas.

Alcance Bluetooth de 79 m para mayor comodidad: Monitorea la temperatura y la humedad desde cualquier lugar de tu casa o invernadero gracias al avanzado chip Bluetooth 5.0 de esta unidad. Olvídate de ir y venir para comprobar las condiciones: recibe actualizaciones directamente desde tu teléfono.

Conozca su entorno: Los gráficos dinámicos de la aplicación y el almacenamiento de datos de un año le ayudan a analizar tendencias, ya sea que gestione un vivero, un invernadero o una bodega. Deje de adivinar y empiece a tomar el control con información práctica.

Alertas instantáneas para mayor tranquilidad: Configura tus niveles de temperatura y humedad preferidos y recibe notificaciones cuando el ambiente cambie. El termómetro higrómetro Bluetooth es perfecto para proteger plantas delicadas, prevenir el moho en baños o garantizar la comodidad de bebés y mascotas.

Pantalla nítida y cómoda: La pantalla LCD retroiluminada de 3,5" ofrece actualizaciones rápidas y fáciles de leer con una suave luz amarilla que no daña la vista. ¡Olvídate de entrecerrar los ojos o forzar la vista con poca luz!

PRESUPUESTO

Rango de temperatura: -4.0 a 140.0℉(-20.0 a 60.0℃)

Precisión de la temperatura:

  • De 32 a 140℉(0 a 60℃): ±0.9℉(±0.5℃)
  • En otros casos: ±1.8℉(±1.0℃)

Rango de humedad: 10%~99%

Precisión de la humedad:

  • Del 20% al 80%: ±2%
  • En otros casos: ±3%

Tipo de sensor: NTC

Frecuencia de actualización: 10 segundos

Rango de transmisión*: 260 pies (80 m)

Tecnología inalámbrica: Bluetooth 5.0

Pantalla:

  • LCD
  • Largo x Ancho en pulgadas (61.5 L x 63 A mm)

Retroiluminación:

Tamaño de la unidad: Largo x Ancho x Alto en pulgadas (82.0 L x 104.0 A x 22.5 H mm)

Alimentación: 3.0 V (2 pilas AAA)

* El rango de transmisión indicado se basa en pruebas realizadas a una temperatura ambiente de 77°F o 25°C sin obstrucciones ni interferencias electromagnéticas. El rango puede variar dependiendo de la cantidad de obstrucciones y el electromagnetismo en su entorno.

Termohigrómetro y termómetro para interiores Bluetooth TempPro TP359 — 80 m de alcance, aplicación inteligente
Precio habitual $21.99
Precio habitual $24.99 Precio de oferta $21.99

Alcance Bluetooth confiable de 260 pies

Equipado con el último Bluetooth 5.0, este termómetro remoto proporciona lecturas precisas de temperatura y humedad hasta a 260 pies de distancia, para que usted se mantenga informado, ya sea que esté en la habitación contigua o al otro lado de la casa.

Alcance Bluetooth confiable de 260 pies

Equipado con el último Bluetooth 5.0, este termómetro remoto proporciona lecturas precisas de temperatura y humedad hasta a 260 pies de distancia, para que usted se mantenga informado, ya sea que esté en la habitación contigua o al otro lado de la casa.

Termohigrómetro y termómetro para interiores Bluetooth TempPro TP359 — 80 m de alcance, aplicación inteligente

Sensor de precisión fabricado en Suiza

Equipado con un sensor Sensirion premium de fabricación suiza, este termómetro para interiores ofrece una precisión excepcional: ±0,9 °F para la temperatura y ±2 % de humedad relativa para la humedad. Su detección ultrasensible permite captar incluso los cambios más sutiles en el ambiente de su hogar, para que usted siempre tenga el control.

Termohigrómetro y termómetro para interiores Bluetooth TempPro TP359 — 80 m de alcance, aplicación inteligente Termohigrómetro y termómetro para interiores Bluetooth TempPro TP359 — 80 m de alcance, aplicación inteligente

Pantalla retroiluminada clara y suave

La LCD de 3.5 pulgadas de gran tamaño, con una cálida retroiluminación amarilla, mantiene clara la información de temperatura y humedad en tiempo real en cualquier tipo de luz. Lo suficientemente brillante para ver, lo suficientemente suave para proteger tus ojos.

Termohigrómetro y termómetro para interiores Bluetooth TempPro TP359 — 80 m de alcance, aplicación inteligente Termohigrómetro y termómetro para interiores Bluetooth TempPro TP359 — 80 m de alcance, aplicación inteligente

Termohigrómetro y termómetro para interiores Bluetooth TempPro TP359 — 80 m de alcance, aplicación inteligente

Sigue las tendencias, domina la comodidad

Visualice los cambios de temperatura y humedad por hora o por año, lo que le permitirá equilibrar perfectamente el confort de su hogar.

Sigue las tendencias, domina la comodidad

Visualice los cambios de temperatura y humedad por hora o por año, lo que le permitirá equilibrar perfectamente el confort de su hogar.

Termohigrómetro y termómetro para interiores Bluetooth TempPro TP359 — 80 m de alcance, aplicación inteligente

Colócalo donde lo necesites

Gestione múltiples espacios de forma eficaz manteniéndose informado de las condiciones ambientales locales.

Invernadero
Vivero
Sala de estar
Baño
 TempPro
 TempPro
 TempPro
 TempPro
Termohigrómetro y termómetro para interiores Bluetooth TempPro TP359 — 80 m de alcance, aplicación inteligente
Termohigrómetro y termómetro para interiores Bluetooth TempPro TP359 — 80 m de alcance, aplicación inteligente

3 opciones de montaje

3 opciones de montaje

Termohigrómetro y termómetro para interiores Bluetooth TempPro TP359 — 80 m de alcance, aplicación inteligente

Comparación de productos

Compare características y encuentre el producto perfecto para sus necesidades

Features

Termohigrómetro y termómetro para interiores Bluetooth TempPro TP359 — 80 m de alcance, aplicación inteligente

Termómetro higrómetro Bluetooth para interiores ThermoPro TP358

Product
Termohigrómetro y termómetro para interiores Bluetooth TempPro TP359 — 80 m de alcance, aplicación inteligente
$21.99
Termómetro higrómetro Bluetooth para interiores ThermoPro TP358
$18.99
Rango de temperatura
-4.0 a 140.0 ℉
(-20,0 a 60,0℃)
-4.0 a 140.0 ℉
(-20,0 a 60,0℃)
Precisión de temperatura
±0,9 °F (±0,5 °C)
±0,9 °F (±0,5 °C)
Rango de humedad
10%~99%
10 % - 99 %
Precisión de la humedad
±2% del 20% al 80%,
de lo contrario ±3%
±2% del 20% al 80%,
de lo contrario ±3%
Tipo de sensor
CNT
CNT
Frecuencia de actualización
10 segundos
10 segundos
Tecnología inalámbrica
Bluetooth 5.0
Bluetooth 5.0
Rango de transmisión
260 pies (80 m)
260 pies (80 m)
Mostrar
Pantalla LCD
Pantalla LCD
Iluminar desde el fondo
Y
Y
Voltaje de la batería
3,0 V
3,0 V
Tipo de batería
2 pilas AAA
2 pilas AAA
Tamaño de la unidad
3 3/4 de largo x 4 1/8 de ancho x 7/8 de alto pulgadas
(82,0 largo x 104,0 ancho x 22,5 alto mm)
2 5/8 de largo x 3 1/2 de ancho x 7/8 de alto pulgadas
(66,5 largo x 89,0 ancho x 22,5 alto mm)
Features

Termohigrómetro y termómetro para interiores Bluetooth TempPro TP359 — 80 m de alcance, aplicación inteligente

Termómetro higrómetro Bluetooth para interiores ThermoPro TP358

Product
Termohigrómetro y termómetro para interiores Bluetooth TempPro TP359 — 80 m de alcance, aplicación inteligente
$21.99
Termómetro higrómetro Bluetooth para interiores ThermoPro TP358
$18.99
Rango de temperatura
-4.0 a 140.0 ℉
(-20,0 a 60,0℃)
-4.0 a 140.0 ℉
(-20,0 a 60,0℃)
Precisión de temperatura
±0,9 °F (±0,5 °C)
±0,9 °F (±0,5 °C)
Rango de humedad
10%~99%
10 % - 99 %
Precisión de la humedad
±2% del 20% al 80%,
de lo contrario ±3%
±2% del 20% al 80%,
de lo contrario ±3%
Tipo de sensor
CNT
CNT
Frecuencia de actualización
10 segundos
10 segundos
Tecnología inalámbrica
Bluetooth 5.0
Bluetooth 5.0
Rango de transmisión
260 pies (80 m)
260 pies (80 m)
Mostrar
Pantalla LCD
Pantalla LCD
Iluminar desde el fondo
Y
Y
Voltaje de la batería
3,0 V
3,0 V
Tipo de batería
2 pilas AAA
2 pilas AAA
Tamaño de la unidad
3 3/4 de largo x 4 1/8 de ancho x 7/8 de alto pulgadas
(82,0 largo x 104,0 ancho x 22,5 alto mm)
2 5/8 de largo x 3 1/2 de ancho x 7/8 de alto pulgadas
(66,5 largo x 89,0 ancho x 22,5 alto mm)

Preguntas frecuentes sobre TP359

  • 5 stars: 15 (100%)
  • 4 stars: 0 (0%)
  • 3 stars: 0 (0%)
  • 2 stars: 0 (0%)
  • 1 star: 0 (0%)
F
Fred S.

Wow what a great tool. It's extremely accurate (tested against smart thermostat) I saw just a -1% deference in humidity. It took about 12hrs to adjust once batteries are installed. Highly recommend this product to anyone who needs to monitor temp/humidity in a specific area.

F
Fred S.

Wow what a great tool. It's extremely accurate (tested against smart thermostat) I saw just a -1% deference in humidity. It took about 12hrs to adjust once batteries are installed. Highly recommend this product to anyone who needs to monitor temp/humidity in a specific area.

A
Aidan

Using this to track room temperature in a room without a thermostat, this was great in getting an accurate room temperature reading, with the backlight being great for checking temperature in the dark during nightly lows. The app is great for tracking trends over time and logging them, with easy Bluetooth functionality. This is a simple, low-cost solution for tracking temperature trends in any location you see fit!

A
Aidan

Using this to track room temperature in a room without a thermostat, this was great in getting an accurate room temperature reading, with the backlight being great for checking temperature in the dark during nightly lows. The app is great for tracking trends over time and logging them, with easy Bluetooth functionality. This is a simple, low-cost solution for tracking temperature trends in any location you see fit!

J
Joel Graffman

This is an amazing little gadget if you need to monitor temperature or humidity in a remote spot. I put this in my attic and it works perfectly with the iPhone app. The graphic display over a variety of time periods is very well done.

J
Joel Graffman

This is an amazing little gadget if you need to monitor temperature or humidity in a remote spot. I put this in my attic and it works perfectly with the iPhone app. The graphic display over a variety of time periods is very well done.

B
Brian

Very consistent reading and works very well. The batteries they send with it crapped out after a month of just sitting there with out being touched. Had another analog one that read horribly and it was so dry, but yet it read high moisture. This one is well worth the money and has been very accurate no matter where I move it to. Good product I highly recommend it!

B
Brian

Very consistent reading and works very well. The batteries they send with it crapped out after a month of just sitting there with out being touched. Had another analog one that read horribly and it was so dry, but yet it read high moisture. This one is well worth the money and has been very accurate no matter where I move it to. Good product I highly recommend it!

E
Eugene

It only works when you're at home but it works really well. No more unzipping the tent to check the temperature. Gives The temperature to the 10th of a degree, the humidity by the percentage.But no decimal.

E
Eugene

It only works when you're at home but it works really well. No more unzipping the tent to check the temperature. Gives The temperature to the 10th of a degree, the humidity by the percentage.But no decimal.

W
W. Costley

UPDATE: The thermometer was not dead, it just needed new batteries. Still five stars.ORIGINAL REVIEW: I bought this to keep track of the temperature in my office. The building has terribly erratic climate control, so my motivation was to be able to have evidence of the temperature when complaining to Facilities. It has worked well for that purpose. I was looking for some kind of wireless thermometer with a nice display, and this was much cheaper than options by companies such as Govee. ( had two of their thermometers a couple years ago, and they both died a few months after I bought them--so I have chosen to avoid their products from now on.Back to the ThermoPro. The display is clear--a little busy, but easy to read the numbers. You get not only temperature, but relative humidity, as well as the maximum and minimum temperature within the past 24 hours. (Even more evidence to support my complaints.) I highly recommend downloading the ThermoPro app--I use it on Android--to set up alerts, and to get a reading of the data it collects on your phone. It stores something like 2 years worth of data, so you get a lot of detail. Amazon just asked me to review this and I was about to take a picture of it for the review. It has a button to light up the display, and as soon as I pushed it, the display went blank and I can't get it to turn back on. I suspect that the batteries were getting low, since they're the originals (2 AAA's) and I've been using it for several months, and trying to energize the light killed them. I don't have fresh batteries on hand, so I can't test my theory. If it turns out this thing is dead, I'll update the review. However, I have a few other ThermoPro thermometers, one of which died unexpectedly. I contacted the company support and they immediately agreed to send me a replacement, which arrived only a couple of days later. My experience shows that you can trust this company to make it right if you get a defective product, even when you're well past the return period.

W
W. Costley

UPDATE: The thermometer was not dead, it just needed new batteries. Still five stars.ORIGINAL REVIEW: I bought this to keep track of the temperature in my office. The building has terribly erratic climate control, so my motivation was to be able to have evidence of the temperature when complaining to Facilities. It has worked well for that purpose. I was looking for some kind of wireless thermometer with a nice display, and this was much cheaper than options by companies such as Govee. ( had two of their thermometers a couple years ago, and they both died a few months after I bought them--so I have chosen to avoid their products from now on.Back to the ThermoPro. The display is clear--a little busy, but easy to read the numbers. You get not only temperature, but relative humidity, as well as the maximum and minimum temperature within the past 24 hours. (Even more evidence to support my complaints.) I highly recommend downloading the ThermoPro app--I use it on Android--to set up alerts, and to get a reading of the data it collects on your phone. It stores something like 2 years worth of data, so you get a lot of detail. Amazon just asked me to review this and I was about to take a picture of it for the review. It has a button to light up the display, and as soon as I pushed it, the display went blank and I can't get it to turn back on. I suspect that the batteries were getting low, since they're the originals (2 AAA's) and I've been using it for several months, and trying to energize the light killed them. I don't have fresh batteries on hand, so I can't test my theory. If it turns out this thing is dead, I'll update the review. However, I have a few other ThermoPro thermometers, one of which died unexpectedly. I contacted the company support and they immediately agreed to send me a replacement, which arrived only a couple of days later. My experience shows that you can trust this company to make it right if you get a defective product, even when you're well past the return period.

t
tyler
It's okay I wish that the light on it could stay

It's okay I wish that the light on it could stay on all the time instead of just pushing a button and then it comes on for just a little bit and I wish it had a alarm

G
Garance A. Drosehn

The house I live in has two problems with humidity. In the summer the humidity inside the house can get up over 85% (there are unground springs right next to the house). In the winter the humidity inside the house can drop under 10%. So I've bought a lot of humidity sensors over the last 8 years, and put them in different rooms around the house. The shortcoming off all the sensors I have bought is that I have to walk around and look at each sensor to read it.So for me, sensors which will send the data to my cellphone is a najor improvement. My cellphone can store that data and show graphs of both temperature and humidity. You can pick from a graph for the last 24 hours, a graph for the last 7 days, or a graph for the past year. I have four different sensors, and all four show up in the app. And the sensors talk directly to your cellphone via bluetooth — there is no shipping the data off to some company's web site and then needing to register with that web site.I expect this is ThermoPro's first attempt at an app for a cellphone, and there are plenty of improvements that could be made to it. And right now it has a bug where *sometimes* the app will crash when you have the app download all the latest data from a sensor. It does download the data and save it correctly, and then maybe 30-40% of the time the app will crash. I have been sending debugging-info to the company, and they say they're looking into the problem. But even after that irritating bug is fixed, I have other ideas for improvements the app.Initially I bought three of these and have been happy with them (except for the app crashing). It then occurred to me that this sensor could also be very useful for another problem at my house. My refrigerator will be working perfectly fine for 8-12 months, and then over the course of maybe two weeks the average temp will go from 40F to 60F, usually without me noticing it. The problem is just that it needs to be defrosted (even though you won't see ice anywhere in it). I have put other sensors in the fridge so I can monitor the temperature, but of course I have to *open* the refrigerator to check those. I also have to remember to keep checking, and after six months of it working perfectly fine I'll get pretty lax about checking. The sensor ends up buried behind food, etc. And before I know it, I'm drinking milk which is nearly room-temperature.So I put one of these sensors in the refrigerator, and I'm very happy to see that the bluetooth signal still makes it to my cellphone, without me needing to open the refrigerator. So I've bought another sensor to do full-time duty at monitoring the inside of the refrigerator. And I expect to buy a few more sensors in the next few months, for other full-time duties. I think the company says you can have up to 10 of them.As to the accuracy of these: As I said earlier I've been buying a variety of inexpensive sensors over the past 8 years. And to be quite honest, I don't trust any of them to be 100% accurate when it comes to humidity. But I still own all those sensors, and these new ThermoPro TP59 Wireless sensors seem to be about as accurate as the other sensors I own from other companies. At least they have been so far. I still doubt they're 100% accurate, but I'll be happy enough as long as they're consistent. By that I mean that if they say the humidity is 34%, then I want to be confident that the humidity is lower than at times when the sensors say the humidity is 40%. Maybe the humidity is really 30% instead of 34%, but at least I can depend that the humidity really is going lower if this sensor claims that it's going lower. I have owned my sensors for just a few weeks now, so I can't really say how reliable they will be over the full range of humidity that happens around my house!

G
Garance A. Drosehn

The house I live in has two problems with humidity. In the summer the humidity inside the house can get up over 85% (there are unground springs right next to the house). In the winter the humidity inside the house can drop under 10%. So I've bought a lot of humidity sensors over the last 8 years, and put them in different rooms around the house. The shortcoming off all the sensors I have bought is that I have to walk around and look at each sensor to read it.So for me, sensors which will send the data to my cellphone is a najor improvement. My cellphone can store that data and show graphs of both temperature and humidity. You can pick from a graph for the last 24 hours, a graph for the last 7 days, or a graph for the past year. I have four different sensors, and all four show up in the app. And the sensors talk directly to your cellphone via bluetooth — there is no shipping the data off to some company's web site and then needing to register with that web site.I expect this is ThermoPro's first attempt at an app for a cellphone, and there are plenty of improvements that could be made to it. And right now it has a bug where *sometimes* the app will crash when you have the app download all the latest data from a sensor. It does download the data and save it correctly, and then maybe 30-40% of the time the app will crash. I have been sending debugging-info to the company, and they say they're looking into the problem. But even after that irritating bug is fixed, I have other ideas for improvements the app.Initially I bought three of these and have been happy with them (except for the app crashing). It then occurred to me that this sensor could also be very useful for another problem at my house. My refrigerator will be working perfectly fine for 8-12 months, and then over the course of maybe two weeks the average temp will go from 40F to 60F, usually without me noticing it. The problem is just that it needs to be defrosted (even though you won't see ice anywhere in it). I have put other sensors in the fridge so I can monitor the temperature, but of course I have to *open* the refrigerator to check those. I also have to remember to keep checking, and after six months of it working perfectly fine I'll get pretty lax about checking. The sensor ends up buried behind food, etc. And before I know it, I'm drinking milk which is nearly room-temperature.So I put one of these sensors in the refrigerator, and I'm very happy to see that the bluetooth signal still makes it to my cellphone, without me needing to open the refrigerator. So I've bought another sensor to do full-time duty at monitoring the inside of the refrigerator. And I expect to buy a few more sensors in the next few months, for other full-time duties. I think the company says you can have up to 10 of them.As to the accuracy of these: As I said earlier I've been buying a variety of inexpensive sensors over the past 8 years. And to be quite honest, I don't trust any of them to be 100% accurate when it comes to humidity. But I still own all those sensors, and these new ThermoPro TP59 Wireless sensors seem to be about as accurate as the other sensors I own from other companies. At least they have been so far. I still doubt they're 100% accurate, but I'll be happy enough as long as they're consistent. By that I mean that if they say the humidity is 34%, then I want to be confident that the humidity is lower than at times when the sensors say the humidity is 40%. Maybe the humidity is really 30% instead of 34%, but at least I can depend that the humidity really is going lower if this sensor claims that it's going lower. I have owned my sensors for just a few weeks now, so I can't really say how reliable they will be over the full range of humidity that happens around my house!