Fast response of toxic gases & Oxygen leakage with a high efficient pump inside
Self diagnosis function with built-in Microprocessor
Easy replacement with a cartridge type sensor
Digital flow sensor to maintain regular flow rate
Stable quality and proved detection principle for service life
Superior performance for detecting toxic gases below TLV
Fine LCD display for showing various information
4-digit digital gas concentration display
4-20mA (Current source or Sink) output signal
Easy configuration of monitoring system by RS-485 Modbus communication or PoE
2-stage alarm, 1-trouble display and relay contact output
3-Wire Type
Calibration and maintenance by one-man

Inquiry Specification View  



   Measuring gas


Toxic gases(CO, Cl2, NH3 & etc) 

   Measuring type

Auto Sampling 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 scale 

   Parameter control

Front switch (calibration, maintenance, alarm setting)

   Operation mode display

4-LED (Power, 2-stage alarm, 1-trouble)

   Measuring value display

LCD Display(4-Digit)

   Alarm signal output

 2A@30VDC, 0.5A@125VAC (resistive load) 

3-SPST relay contact(2stage alarm, 1 trouble) 







   Output signal


Analog : 4-20mA Analog Output

Maintenance signal : 4mA

Calibration signal : 3mA

Fault signal : 0mA

Digital : RS-485 Modbus(Option)
PoE(Power over Ethernet)(Option) 

   Sampling method

 Diaphragm Pump

   Sampling line

OD 1/4" (Standard) 

   Flow rate

 0 ~ 1000 ml/min max

   Conduit connection

Standard : PF 3/4"

Cable gland(PG-16)

   Mounting type

Wall mount

   Operating temperature  

-10°C ~ +60°C

   Operating humidity 

5 to 99% RH (Non-condensing)


 Front(Poly carbonate), Sides(Steel) 


Standard type : 70(W) × 144(H) × 160(D) mm

Pyrolyzer type(PY-1000) : 70(W) × 242.5(H) × 160(D) mm 


Standard type : 2.5kg

GTD-5000 & PY-1000 : 4.05kg 


Current consumed by Polyzer(PY1000, PY2000) Unit 


DC 24V should be supplied if you want to use Pyrolyzer in case of using PoE power