Battery Powered Internal Space Mounting Temperature and Humidity Sensor


The ZED-THI-M is a battery powered device which perform temperature and humidity measurements at the same time and send them at regular intervals to a Gateway of the 4-noks products family.

This device may be configured to manage alarm thresholds for exceeding maximum or minimum levels of measures. It is also possible to adjust the sampling and data transmission rate to improve battery life.

Delivery in approximately 2-5 working days (subject to availability)

Download Internal Space Mounting Temperature and Humidity Sensor Datasheet

SKU: WM00426ITH Category:


Key Features

  • Temperature and humidity measurements for indoor use
  • Alarm thresholds
  • Sampling and transmission rates are configurable
  • Battery powered
  • Long life battery
  • Internal antenna

Product Specifications

General characteristics

  • Chip Ember EM250
  • Compatible IEEE 802.15.4
  • Stack EmberZnet3.4.x (ZigBee PRO)
  • Modbus/RTU
  • Device address settable via internal dip-switch

RF characteristics

  • Frequency: 2405 MHz ÷ 2480 MHz
  • Modulation: DSSS
  • Nominal transmission power: 2mW (3 dBm)
  • Reception sensitivity: -95 dBm
  • Internal antenna gain: 0 dB
  • Coverage outdoor/indoor: 100m/30m


  • AA high energy density lithium battery 3,6V/2000mAh
  • Battery life: 3 years in case of 1 transmission per minute at 20°C

Temperature/Humidity Sensor

  • Sensor used: Sensirion SMD SHT11 series
  • Temperature measurement range: from -40 to 120°C
  • Reading accuracy inside measurement range: +/- 1,5°C max. (view graph)
  • Temperature measurements in tenth degrees
  • Humidity measurement range: from 0 to 100% RH%
  • Reading accuracy +/- 5 RH% max. (view graph)

Environment parameters

  • Operating temperature: -10 ÷ +60°C; <80% U.R. not condensing
  • Storage temperature: -20 ÷ +70°C; <80% U.R. not condensing
  • Degree of protection: IP 55

Compliant with 2006/95/EEC, 89/336/EEC, 99/5/EEC directives Reference Norms

  • ETSI EN 300 328: Radio Compatibility for digitals wide band transmissions
  • ETSI EN 301 489: Radio Compatibility
  • EN 61000-6-2: Electromagnetic Compatibility – Emissions
  • EN 61000-6-3: Electromagnetic Compatibility – Immunity
  • EN 60950-1: Electric Safety


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