COMET H5321 | RS232 CO2 Transmitter with Relay Outputs — Remote Probe

Featuring both RS232 serial communication and relay outputs, the COMET H5321 is a CO2 and level monitor for data logging and threshold-based alarm or control switching. It suits building management integration, greenhouse monitoring, and industrial environments combining digital data connectivity with direct relay switching for CO2-triggered ventilation or process control.

$ 2,245.00 Ex. GST

Available to back order. ETA will be 3 - 5 weeks.

Availability Info ?
Available to back order. ETA will be 3 - 5 weeks.

$2,245.00 Ex. GST

Description

CO2 level transmitter with two output relays.

The device is supplied with CO2 probe with 1m cable. Cable lengths 2 or 4 meters available optionally.

Green LED shines - CO2 concentration 0 to 1000 ppm
Yellow LED shines - CO2 concentration 1001 to 1200 ppm
Red LED shines - CO2 concentration 1201 ppm and more

INCLUDED IN DELIVERY:
3 year warranty

Specifications

MEASURED VALUE
CO2

CO2 SENSOR
Measuring range 0 to 10 000 ppm
Accuracy ±(100ppm +5% from reading) at 25°C and 1013hPa
Resolution 1 ppm

RELAY OUTPUTS
Quantity 2
Maximal voltage 50 V
Maximal current 2 A
Maximal power 60 VA

GENERAL TECHNICAL DATA
Operating temperature -30 to +60 °C
Channels internal CO2 sensor
Acoustic alarm from built-in beeper – switchable
Output RS232
Communication protocol ModBus RTU and Advantech ADAM compatible protocol
Power 9-30 Vdc
Protection class IP65
Dimensions 136 x 150 x 45 mm
External probe cable length CO2 1 meter (optionally 2 or 4 meters)
Weight approx. 360 g
Warranty 3 years

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