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PIDScan 900
with built-in De-Humidifier kit  

... ensuring no false alarms even in
water condensing conditions


PIDScan 900 with De-Humidifier kit 

PIDScan 900 - GDS unique fixed PID detector, can out-performed any competitors in the market, who are commonly using conventional Type-4 PID sensor, for fixed stationary application, that always posed massive problems to the end-users, who knowingly, or unknowly installed them in their plants, and many have regretted, but to live with the problems of false alarms, unstable readings, all remained unresolved.


To enhance our already proven performance of our fixed PID detector,  we have developed an unique De-Humidifier kit, to enable our PIDScan 900 device to have sustained and un-faltered operation in the fields, even under harsh humidity condensing conditions.


Our short video below helps to illustrate the working principle of our De-Humidifier kit. 



PIDScan 900_3.png
Automatic self-cleaning

to ensure reliable, improved life and operation performance of the PID lamp


for fast repeatable response and  

accuracy for long duration 

Unique ceramic-glass PID sensor 

has proven to yield stable performance and long-sensor life beyond expectations

Built-in temperature and humidity sensors

to ensure accurate and real-time compensation measurements under all weather conditions

  • 4-20 mA analog and MODBUS RS485 output ; HART as optional.

  • PID sensor highly resistance to humidity interference

  • Explosion proof EEx d IIC T6 for hazardous application

  • With built-in diaphragm pump to draw in sample gas

  • Magnetic interface for non-intrusive access to menu

  • Large numerical and graphical dot-matrix display with backlight sensor



PID sensor                                10.6 eV 

Range/Resolution                     0 - 2000 ppm / 1 ppm (high range version)

                                                 0.0 - 1000.0 ppm / 0.1 ppm (standard version)

                                                 0.00 - 100.00 ppm / 0.01 ppm ( ultra sensitive version )

                                                 *  with Temperature and Humidity compensation on board

Self-cleaning                            Built-in self-cleaning     

Relay contacts                         SPST dry contacts (x2)

Ring LEDs Alarm                     Built-in ring alarm LEDs; Yellow and Red

Response Time                       T90 < 30 sec

EX Approval                            ATEX II 2G Ex d IIC T6  Gb    

                                                UL Class I Div I Group B, C and D

IP Rating                                 IP66 EMI / RFI                  

Compliance to EMI / RFI         Directive 89 / 336 / EEC

Power                                     9 - 36 Vdc, max. 125 mA at 24 Vdc                              

Cable                                     3-wire shielded; max. 1 kOhm at 24 Vdc

Output                                    4 - 20 mA , HART (option)                                 

                                               Modbus RS 485                     

                                               SPST relay contacts (x2), Fault relay, max. 30 V, 2 A.

Sampling method                  Built-in diaphragm pump (~500 ml / min)

Display                                  Graphic LCD 128 x 64 pixels, with backlit

User interface                       Non-intrusive using magnetic key

Operating Cond.                  Temperature: -20 degC to +60 degC (-4 degF to 140 degF)                                                                      Humidity: 0 - 95%RH (non-condensing)

Physical Data                        Weight: 3.5 Kg                                

                                              Dimension: L 124 x D 125 x H 253 (mm)


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33 Ubi Avenue 3, Unit 05-28,

Vertex Building Tower B

Singapore 408868.


Tel: +(65) 6509 4758 (Hunting)

Fax: +(65) 6509 4227

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