Gas and Specialty Sensors

TG Series

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TG Series

CO & NO2 Sensor TG Series

CO & NO2 Sensor


The Senva TG CO & NO2 Sensor Series can be ordered as individual CO or NO2 sensors or as a combination CO/NO2 sensor in a shared enclosure. Sensor features 2 outputs that support daisy chain wiring. The unit can act as a stand along controller, utilizing the relay for exhaust fan operation or the output for direct control or a VFD. Multiple sensors may be used in a parallel sequence (0-10V) for cost effective coverage of large areas.. Kele is the leading supplier of building automation products. When you need the right product, right now, count on Kele.


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  • Cost-effective dual gas sensing and control
  • ▪ Integrated display, LED indicators, audible alarm
  • ▪ Menu selectable 0-5/10V, 1-5V and 4-20mA outputs (0-10V default)
  • ▪ Dual outputs support daisy chain wiring to cost-effectively sense and control large areas
  • ▪ Order as individual CO or NO2 sensor, or specify both sensing elements in one enclosure
  • Easy to install and maintain
  • ▪ Test mode speeds up field commissioning for verifying warning indicators and relay functions
  • ▪ Push buttons and LCD to navigate setting parameters
  • High reliability reduces call backs
  • ▪ Temperature compensated elements for maximum accuracy
  • ▪ UL2034 recognized electrochemical CO sensing element
  • ▪ 5 year life expectancy on CO and NO2 elements
  • ▪ Warning indicators alert occupants when element's lifecycle is near end for replacement
  • ▪ 7-year limited warranty on electronics; 2-year on elements
  • Operates as stand-alone controller
  • ▪ Programmable fan and alarm relays for direct control
  • ▪ LED indicators and 85dB alarm sync to relay settings
  • ▪ Set maximum off-time in 24 hour period for fan relay to ensure adequate air flow in occupied spaces

Supply Voltage:12-30VDC/24VAC(1), 100mA max.

Analog Outputs:

 :2 Programmable Analog Outputs 0-10V (default), 0-5V, 1-5V and 4-20mA (menu selectable)

Fan Relay:

 :Fan Relay Characteristics N.C. 10A@125VAC, 5A@30VDC

Alarm Relay:

 :Alarm Relay Characteristics 1A@30VDC


 :3-1/2 digit LCD Indicates CO ppm, NO2 ppm (menu selectable)


 :Green, Yellow, Red Green = Normal, Yellow = Relay, Red = Alarm

Audible exposure alarm:

 :85dB Piezo transducer 30 minutes above alarm setpoint per UL2034 (menu selectable)

CO Sensor Performance:

 :Type Electrochemical

NO2 Sensor Performance:

 :Type Electrochemical

Operating Environment:

 :Temperature, continuous -20 to 40℃

 :Temperature, intermittent -30 to 55℃

 :Humidity 15-95% continuous, 0-95% intermittent


 :Material ABS/Polycarbonate

 :Dimensions 4.0″h x 4.4″w x 2.1″d

Warranty: 7 years on electronics