Battery Powered External/Industrial Mounting Outside Temperature, Humidity and Light Level Sensor


The ZED-THL-M is a battery powered device which perform temperature, humidity and light 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.

The sensors are protected into a plastic material case such as Gore-Tex in order to let only air entering and no water.  Because of its high degree IP protection, ZED-THL-M can also be used outdoor.

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

Download Outside Temperature, Humidity and Light Level Sensor Datasheet

SKU: WM00426ETHLL Category:


Key Features

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

Product Specification

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)


  • Sensor used: Agilent ADPS-9002
  • Error : +/-5% in the range between 10 and 1000 Lux

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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