TempPro TP211B 2-Pack Digital 500-ft Wireless Pool Thermometer

Best For:

For the pool owner who wants to check water temperature without going outside: Place the floater in the pool and the backlit receiver anywhere inside. Check pool temp from 500ft away without stepping out. Daily high and low records show when the pool was warmest.

For the homeowner who wants pool temp and indoor conditions on the same display: The receiver shows pool water temperature alongside indoor room temperature and humidity. One screen tells you if it's warm enough to swim and comfortable enough to sit outside.

For anyone using a hot tub, spa, cold plunge, or aquarium: IPX8 waterproof floater handles full submersion. Wide range from -40°F to 158°F covers ice baths, cold plunges, baby baths, and spa monitoring with ±0.9°F accuracy.

Not Ideal For:

Those who never want to replace batteries: The TP211B runs on AAA batteries. For the same wireless pool monitoring without ever replacing batteries, the TP212 uses built-in solar charging.

Those who want faster temperature updates: The TP211B refreshes every 50 seconds. For near real-time readings that update every 5 seconds, the TP212 delivers more responsive monitoring.

TempPro TP211B Digital Wireless 500ft Pool Thermometer

High Accuracy: Equipped with a highly precise sensor, this floating pool thermometer provides ±0.9°F (±0.5°C) accuracy within a range between 32°F and 140°F. More than capable of handling temperatures between -40°F to 158°F, the TP211B is ideal for use with ice baths, cold plunges, baby baths, hot springs, and aquariums.

500FT Long-Range Monitoring: Featuring stronger, more stable RF technology, this outdoor water thermometer allows you to check your pool’s temperature from up to 500 feet away—no need to step outside!

Large Backlit Display: Backlit screen with large digits ensures easy reading even in low-light conditions. The all-time/24-hour maximum & minimum temperature records help you track changes throughout the day.

Durable & Waterproof: Designed with IPX8 waterproof protection and high-quality ABS materials, this floating thermometer withstands pool water exposure and harsh weather conditions to provide long-lasting use.

Hassle-Free Setup: The floater and receiver auto-pair instantly, so it’s ready to use right out of the box—no complicated setup required! Powered by AAA batteries (included).

Brand Note
ThermoPro is now TempPro — same trusted quality, same performance.(You may receive either branded packaging.)

Temperature Range:

• Base Station:-22.0 to 140.0℉(-30.0 to 60.0℃)
• Remote Sensor: -20.0 to 158.0℉(-40.0 to 70.0℃)

Temperature Accuracy:

• From 32 to 140℉(0 to 60℃): ±0.9℉(± 0.5℃)
• Otherwise: ±1.8℉(±1℃)

Humidity Range:

• Base Station: 10% ~ 99%
• Remote Sensor: 10% ~ 99%

Refresh Rate:

• Base Station: 50 seconds
• Remote Sensor: 50 seconds

Sensor Type: NTC

Transmission Range*: 500ft (150M)

Wireless Technology: FSK 915Mhz for USA/Canada and 868Mhz for Europe

Display Base Station:

• LCD
• Length x 2 Width inches(73.5L x50.5W mm)

Display Base Station:

• LCD
• inches(ф30.0mm)

Backlight: Yes

Unit Size:

• Base Station:  Length x  Width x  Height inches (98.0L x 91.0W x 23.0H mm)
• Remote Sensor:  Length x 5 Height inches (ф73.0×129.0H mm)

Power:

• Base Station: 3.0V( 2 x AAA Batteries)
• Remote Sensor: 3.0V( 2 x AAA Batteries)

*The stated transmission range is based on tests at an ambient temperature of 77°F or 25°C of swimming pool without any obstructions or electromagnetic interference. Your range can vary depending on the number of obstructions and electromagnetic in your environment