1. Description

Air temperature and humidity, NH3, H2S, CO2, PM2.5 sensor. As the field acquisition slave station, according to the standard MODBUS-RTU communication protocol RS485 digital signal output, suitable for long-distance networking transmission. Fully compatible with Kingview and other upper configuration software, easy to match with third-party equipment. It can be widely used in factory buildings, intelligent farming, public toilets, environmental protection and other atmospheric environment monitoring fields.

Application:  Indoor, Car, Warehouse, Public Toilet, environmental protection

2. Technical performance

Display mode: OLED (option)

OLEDscreen specification: 0802 8 characters per line, 2 lines display

Alarm, control output (optional) : 1 relay, contact capacity (resistance) : 3A/AC220V, DC24

Working environment: -20~50 degrees, 15~90%RH(no condensation)

Storage environment: -25 ° to 60 ° C

Working pressure: 0.9~1.1 atmosphere

Supply voltage: DC7~24V

Maximum power consumption: 500mW

Communication interface: RS485

Communication rate: 2400, 4800, 9600, 19200, 38400, 115200. The default is 9600bps.

Communication protocol: MODBUS-RTU

Data format: 1, 8, 1, 9600, N (1 start bit, 8 data bit, 1 stop bit, no parity, 9600bps baud rate)

Terminal type: slave station

Node address: 001 to 255

Number of nodes: 31

Transmission distance: 500 meters (RS485 communication cable)

Product size :

Wall-mounted shell 

Note: Any indicators are optional.