Project Description

ZigBee Modbus Temperature, humidity and light sensors Print datasheet

Battery powered ZigBee wireless sensors for monitoring environment parameters
Main technical specifications
  • Measurement of temperature, humidity and light
  • Regular transmission of measured values to the ZigBee gateway
  • Sampling intervals and data transmission to the Gateway can be customised to increase battery life.
  • Customisable range of measurements for recording firmware alarm conditions. Settings can be used by the supervisor to generate alarms and/or warnings (e.g. to check whether doors, windows, etc. are closed/open).
  • Battery powered
  • For indoor or outdoor use: these environment sensors are housed in a waterproof plastic compartment
  • Internal antenna
  • Building automation and industrial control systems
  • Energy monitoring and management

A complete range of battery powered, ZigBee wireless sensors for measuring temperature, humidity and light. In a wireless network, these devices transmit measurements to a ZigBee Gateway.

ZigBee environment sensors are the ideal choice for energy saving and environment monitoring systems in building automation and large office applications. They permit data to be acquired and processed without the need for cabled connections.

Connection diagram
Models available
Image Code Description
ZED-THL-xx ZED-THL-M Temperature, humidity and light sensor – Modbus
ZED-THI-xx ZED-THI-M Temperature and humidity sensor – Modbus
Technical specifications
General specifications Ember EM250 chip
Compatible with IEEE 802.15.4
Stack EmberZnet3.4.x (ZigBee PRO)
Modbus / RTU
Radio specifications Frequency: 2405 MHz to 2480 MHz
Modulation: DSSS
Nominal transmission power: 2 mW (3 dBm)
Receiver sensitivity: -95 dBm
Antenna Internal with 0 dB gain
Radio range: max 30 m outdoors
Power supply High energy, 3.6 V / 2000 mAh AA lithium battery
Battery life: 3 years with data transmission every minute at 20 °C
Status display 3x indicator LEDs
Sampling interval 60 s default
Sensors used Temperature and humidity: Sensirion SMD SHT11
Light (only ZED-THL-M): Agilent ADPS-9002
Temperature Temperature sensor measurement range: -40 to 120 °C
Accuracy over sensor operating range: ±1.5 °C max
Temperature measurement in tenths of a degree
Humidity Humidity sensor measurement range: 0 to 100% RH%,
Accuracy ± 5 RH% max
Light (only ZED-THL-M) Measurement error: ±5% over range 10 to 1000 Lux
Mounting Wall-fixing with screws
Ambient parameters Operating conditions: -10 to +60 °C; <80% R.H. n. c.
Storage conditions: -20 to +70 °C; <80% R.H. n. c.
Degree of protection ZED-THL-M: IP54
Insulation Class III
Conformity ETSI EN 300 328; ETSI EN 301 489-1; ETSI EN 301 489-17; EN 61000-6-2; EN 61000-6-3; EN 60950-1; EN 62479
Directives 2014/53/EU (RED) 2011/65/EU (RoHS) 2012/19/EU (WEEE) 1999/519/EC
Dimensions (L x H x D) ZED-THL-M: 94 x 147 x 35 mm
ZED-THI-M: 127 x 80 x 30 mm
Weight ZED-THL-M: 112 g
ZED-THI-M: 105 g
Mechanical drawings

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