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Wireless Thermo-Hygrometer MAXIM II


  • Outdoor temperature and humidity via transmitter
  • Indoor climate with comfort level
  • Display of max. and min. temperatures
  • Radio-controlled clock with date display

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Product specification

Window open or closed? Heating on or off? Finding the ideal room climate is usually not so easy. The MAXIM II wireless thermo-hygrometer from TFA is the help you need.
Internal sensors measure internal temperature and humidity. The measured climate is evaluated based on the comfort-zone levels.
The control of the indoor climate ensures a pleasant living environment and prevents mould growth.
The outside temperature and humidity are determined by up to 3 separate transmitters, thus providing important information for home, garden, leisure and work.
In addition, the maximum and minimum temperatures can be retrieved, and the time and date of storage are indicated. Time and date are received via radio.


  • Transmission of outdoor temperature and humidity via up to 3 transmitters
  • Indication of indoor temperature and humidity
  • Comfort-level zones
  • Max.-min.-function (for temperature with time and date of recording)
  • Radio controlled clock, date, time zone ±9 hrs

TFA Quality mark:

  • Swiss Precision Sensor
  • IT Instant Transmission

Product information for download:

Technical data

Measuring range temperature outdoor-40...+60°C (-40...+140°F)
Delivery contentsBase station, thermo-hygro transmitter, batteries, instruction manual
Measuring range humidity1...99%
Radio-controlled clock defeatableYes
Maximum range100 m
Maximum amount of transmitters3
Transmitter included in delivery30.3144.IT
Transmission frequency868 MHz
Measuring range temperature indoor-10...+60°C (+14...+140°F)
ClockRadio-controlled clock
AssemblingTo be hung or freestanding
Power consumptionBatteries
Batteries3 x AA 1.5 V (base station), 2 x AA 1.5 V (transmitter)
Batteries includedYes
Dimensions(L) 107 x (B) 38 x (H) 138 mm
Weight155 g

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