Lansen is a Swedish innovation-driven developer and manufacturer of wireless solutions for measuring, monitoring and control of buildings since 2004. Lansen have its major skills and excellence in battery driven hardware and software design.


This device from Lansen is a plug-and-play ambient temperature and humidity room transmitter. Much care have been taken to design a sleek, good looking device with high security, performance, and long battery lifetime (14 years). The design allows for discrete integration when mounted in home environment with quick and easy installation using just a magnet. Furthermore, the device has two internal antennas for maximum radio performance and range in all directions.

The device has a robust design with innovative optical tamper detection function that will alert if the device is opened or closed. The battery level is continuously monitored and a low level warning is issued when battery is nearing depletion.

Temperature and humidity is sampled and transmitted at regular intervals which makes the device ideal for integration in data collecting systems.

Key Facts

  • 14 years typical battery lifetime with standard configuration and recommended operating temperature

  • Standard configuration: Sampling every 5 min., transmit every 30 min.

  • Recommended operating temperature: +5°C to +50°C

  • Two antennas for true differential transmission

  • Temperature accuracy typically ±0.2°C

  • Humidity accuracy typically ±2%RH

  • Dimensions: 32 x 88.5 x 25.5 mm

  • Easy and quick installation using just a magnet


  • Sensor

  • • 1 x ER14505, 3.6V, Li-SOCI2, standard soldered (non-replaceable battery). Can be ordered with optional battery holder (replaceable battery)

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Lansen Systems AB

Phone: +46 739 69 50 38