We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Small white rectangular sensor with backlit display and magnetic back

TempPro TP350-US Bluetooth Hygrometer Thermometer

SKU CH-Z45R-MQVGG

Bluetooth hygrometer and thermometer monitors temperature and humidity up to 260 ft away with ±.9 °F accuracy and 10-second refresh

  • Battery runtimeAlkaline
  • Measuring range55 degrees fahrenheit to 140 degrees fahrenheit
  • Operating conditions55 degrees fahrenheit / 140 degrees fahrenheit
  • Storage conditions55 degrees fahrenheit to 140 degrees fahrenheit
  • Product dimensions3.2 cm × 3.2 cm × 6.9 cm
  • Product weight0.102 kg
  • Monitor temperature remotely up to 260 ft away
  • Track trends with two years of stored data export
  • Read measurements clearly on large backlit display
  • Place anywhere using stand, wall mount or magnet
  • High accuracy within .9°F and 2% RH

Purpose and user

The TempPro TP350-US is a Bluetooth hygrometer thermometer built for indoor spaces such as bedrooms, nurseries, instrument rooms and cigar storage. It suits anyone who wants continuous temperature and humidity visibility without wiring or registration.

Bluetooth range and environment

Wireless monitoring works up to 260 ft with no obstructions, so walls or floors will reduce the practical distance. The sensor itself is rated to operate and be stored only between 55 and 140 °F, limiting use in unheated garages or greenhouses that fall outside that band.

Accuracy and data headroom

Readings refresh every 10 seconds with a stated accuracy of ±.9 °F and ±2 % RH, which is adequate for comfort monitoring but not for laboratory calibration. Two years of onboard history can be exported to CSV, giving ample headroom for seasonal trends before the log wraps.

How it compares

Measured against everything we stock in Digital Thermometers & Hygrometers, at today’s prices. Recalculated every night.

Price $29.99
Pricier than about 68% of the 925 comparable items (median $23.99).

Specifications

Product
Brand nameTempPro
Part numberTP350-US
Power
Battery runtimeAlkaline
Size & build
Product dimensions3.2 cm × 3.2 cm × 6.9 cm
Product weight0.102 kg
Environment & compliance
Operating conditions55 degrees fahrenheit / 140 degrees fahrenheit
Storage conditions55 degrees fahrenheit to 140 degrees fahrenheit
More details
Measuring range55 degrees fahrenheit to 140 degrees fahrenheit

Questions about this item

Which TempPro model should I choose if I need Bluetooth monitoring up to 260 ft?

The TP350-US model provides Bluetooth connectivity with a range of up to 260 ft in open conditions, letting you view temperature and humidity on your phone from another room or outside.

What does the ±0.9 °F accuracy mean when I place the sensor in my greenhouse?

Readings will stay within 0.9 °F of the true temperature and within 2 % relative humidity, updating every 10 seconds so you see real-time changes.

What Bluetooth standard does the TP350-US use and what limits the range?

It uses standard Bluetooth low-energy; the practical range is capped at 260 ft line-of-sight, with walls or metal structures reducing the effective distance.

More in Digital Thermometers & Hygrometers

Similar items