ThermaData WiFi HTD Humidity Logger

£145.00 ex VAT

£174.00 inc VAT

ThermaData Wi-Fi temperature and humidity data logger for wireless monitoring

  • Simultaneously displays humidity and temperature
  • Access recorded data online
  • Programmable high/low alarms with digital alerts
  • Records up to 18,000 readings
  • Free software with no subscription charges
  • UKAS calibration certificates available

Add Accessories

Add humidity UKAS certificate 20 working days

UKAS 3 Point - Humidity Certificate (25, 50, 75 %RH)

UKAS 3 Point - Humidity Certificate (25, 50, 75 %RH)


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in production - delivery 10-14 working days
Product code: 298-621
Made in UK BRCGS

ThermaData HTD humidity data logger features

The ThermaData humidity data logger's LCD screen displays the temperature/humidity, Wi-Fi connection status, max/min recorded temperatures, alarm status and battery life.

The data logger features a red and green LED light. The flashing green LED indicates that the logger is active/logging, and the flashing red LED indicates that your customised preset alarms have been exceeded. Each unit is supplied with a USB lead. 

The relative humidity sensor has a range of 0 to 100 %rh. The temperature sensor has a range of 0 to 50 °C. The device displays the temperature with a resolution of 0.1 °C/°F, and temperatures are accurate to ±0.5 °C.

FREE data logger software

Your temperature data can be viewed on any device at any time using our FREE data logger software.

ThermaData Studio software

  • Free to download, with no subscription charges
  • Set up your data logger and program intervals
  • Real-time data acquisition
  • View data as a summary, table or graph
  • Multiple options to download, email and print data
  • Automatically archive ThermaData Wi-Fi data
  • Store data locally without cloud storage fees
  • Connect up to 32 ThermaData Wi-Fi instruments
  • Compatible with PCs
Download the Software

TD link app

  • Free to download, with no subscription charges
  • Push notifications
  • View current readings, settings and reference information
  • Warning indicators for low batteries or missed communications
  • View temperatures for up to 32 ThermaData Wi-Fi instruments
  • Compatible with iOS and Android
Download the TD Link App
Learn more about our ThermaData logger software through the links below:
Product Details

Data sheet

Range - Temperature:0 to 50 °C
Range - Humidity:0 to 100 %rh
Resolution - Humidity:0.1 %rh
Accuracy - Temperature:±0.5 °C (0 to 50 °C)
Accuracy - Humidity:±3 %rh @ 25 °C (10 to 90 %rh)±4 %rh @ 25 °C (0 to 100 %rh)
Hysteresis - Humidity:±1 %rh
Memory:2 x 9000 readings
Sample Rate:6 seconds to 330 minutes
Battery:2 x 1.5 volt AA
Battery Life:approx. 10 months @ 20 °C
Sensor Type:Temperature: Thermistor Humidity: Capacitance polymer
Display: 12 mm LCD/2 LED's
Dimensions:29 x 72.5 x 96 mm
Weight:165 grams

Specific References

Reviews (1)
298-621 C of C

298-621 Certificate of Conformity

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