Self diagnosis function with built-in Microprocessor
Superior performance for detecting toxic gases below TLV
Easy installation with a wall mount type
4-digit gas concentration display
3-stage alarm level, 1-trouble LED display and relay contact output
Easy configuration of monitoring by RS-485 Modbus communication
Programmable alarm setting (Level, Time delay)
Self diagnosis
4-20mA(Current source or Sink) output signal

Inquiry Specification View  



   Measuring gas


Toxic gases(CO, Cl2, NH3 & etc)

   Measuring type

Diffusion type 

   Measuring method

Galvanic cell or Electrochemical cell 

Electrochemical cell

   Measuring range

Refer to Toxic Gas Measuring Range

   Response time

< 15sec / 90% scale 

< 45sec / 90% scale 


±3% / Full Range

   Measuring display

1.8" 4-Digit FND 

   Operation mode display

6-LED(Power, 3-stage alarm, Trouble, Stand-by for maintenance) 


   Alarm signal output

Visual : 3-stage Alarm

Trouble LED
 Warning LED 
Audible : Buzzer(85dB) 







   Output signal


Analog : 4-20mA Analog Output

Maintenance signal : 4mA

Calibration signal : 3mA

Fault signal : 0mA

Digital : RS-485 Modbus(Option)


4 - 20mA DC Signal : 2000m 

RS-485 Modbus Signal : 1000m 

   Mounting type

Wall mount

   Operating temperature  

-20°C ~ +60°C

   Operating humidity 

5 to 99% RH (Non-condensing)


Detector(ABS), Sensor(PVC), Alarm unit(Poly carbonate) 


235.6(W) × 355.5(H) × 109.3(D) mm