Project Description

ZigBee Modbus CO2 Sensor Print datasheet

Battery powered ZigBee Modbus wireless sensor for measuring the concentration of carbon dioxide
Main technical specifications
  • Double NDIR wavelength measurement
  • Auto-calibrating
  • Long term stability and accuracy
  • Sampling intervals and data transmission to the Gateway can be customised to increase battery life.
  • Customisable range of measurements for recording firmware level 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).
  • Wall-fixing
  • Internal antenna
  • Large public and/or private buildings for:
    • optimising ventilation in closed spaces and/or areas with an irregular influx of persons (e.g. museums, schools, hospitals, etc.)
    • ensuring that the concentration of carbon dioxide does not limit the attention span of occupants
    • ensuring that the concentration of carbon dioxide is never harmful to health
  • Greenhouses, for optimised plant growth

Battery powered ZigBee wireless sensors for measuring the concentration of carbon dioxide in the air. In a wireless network, these devices regularly transmit measurements to a ZigBee Gateway.

These devices can be connected to ventilation systems to optimise air quality. The can be used in environment control, indoor ventilation, controlled mechanical ventilation and air conditioning systems.

Connection diagram
Models available
Image Code Description
ZED-CO2-xx ZED-CO2-M Carbon dioxide sensor – Modbus
Technical specifications
General specifications Ember EM357 chip
Compatible with IEEE 802.15.4
Stack EmberZnet 4.7.3 (ZigBee PRO)
Modbus / RTU
Radio specifications Frequency: 2405 MHz to 2480 MHz
Modulation: DSSS
Nominal transmission power: 2 mW (3 dBm)
Receiver sensitivity: 103 dBm
Antenna Internal with 0 dB gain
Radio range: max 30 m outdoors
Power supply Batteries: (4x) AA
Battery life: 1 year with tx > 15 min
Status display 4x indicator LEDs
Sampling interval 15 mins default
Sensors used EE893-05C2
Measurements Double NDIR wavelength
Measurement range 0~2,000 ppm (0~5,000 ppm, 0~10,000 ppm optional)
Accuracy ± (4% FS +3% Reading)
Measurement intervals: 1.5 s
Mounting Wall-fixing with screws
Ambient parameters Operating temperature: 0 to +50 °C; <80% R.H. n. c.
Storage temperature: -20 to +70 °C; <80% R.H. n. c.
Degree of protection IP30
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) 85 x 37 x 30 mm
Weight 215 g
Mechanical drawings

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