* product family image displayed

CT1D-D3D | Senva | Gas & Specialty Sensors





List Price:


Today's Price:


Availability: Usually Ships in Less Than 6 Business Days
Available Inventory
Lead times are estimates based on our Memphis location and subject to change without notice based on customer demand.

Need more?
Just order your desired quantity and we'll ship the available inventory immediately while we source the remaining quantity to get you all the products you need as soon as possible.

We can also reserve the available inventory and ship once we acquire the remaining quantity from the supplier. Just choose "Ship Complete" at checkout.

add to cart


product family specifications

Supply Voltage

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

Analog Outputs

Dual Analog 3-wire 4-20mA and 0-5V/0-10V (2) (jumper)

Output scaling 0 - 2000 or 0 - 5000 ppm (selectable)

Digital Setpoint Output

Programmable Solid-state, 1A @ 30VAC/DC, N.O.

Sensor Performance

Type Non-dispersive Infrared (NDIR)

Accuracy ±40ppm, ±3% of reading

Response time 60 seconds to 90% reading

Output update rate 3 seconds

LCD Menu Setup Parameters

SPH, Setpoint, Hi (On point) 500ppm to full-scale (700ppm default)

SPL, Setpoint, Lo (Off point) 400ppm to full-scale-50 (600ppm default)

SCL, Scaling 0-2000ppm or 0-5000ppm (2000ppm default)

ADJ, Adjustment Offset adjustment +/-250ppm (0 default)

CAL, Calibration mode Automatic mode ON or OFF (default=ON)

RUN, Run mode Displays CO2 in ppm

Operating Environment

Temperature 32 to 122℉ (0 to 50℃)

Humidity 0-95% non-condensing


Material ABS Plastic

Dimensions 4.7″h x 2.9″w x 1.24″d (0.48″ wall profile)


7 years on electronics, 3 years on CO2

product family features

  • Demanding architectural standards
  • ▪ Fits in most standard j-box or low voltage brackets.
  • ▪ No exposed screws; unobtrusive tamper resistant design
  • ▪ Popular colors to match any decor
  • Easy to install and maintain
  • ▪ Integrated display and push-button menus for field selectable scale, calibration, and operational modes
  • ▪ Dual 4-20mA and 0-5V/0-10V output (jumper selectable)
  • ▪ Integrated high-reliability solid-state set-point relay is ideal for direct control applications; easy to set up thanks to LCD
  • High reliability reduces call backs
  • ▪ Non-dispersive infrared sensing element (NDIR)
  • ▪ Field replaceable CO2 sensor
  • ▪ 15+ year life expectancy on CO2 sensing element
  • ▪ Industry leading 7-year limited warranty on electronics; NDIR module 3 years
  • High accuracy for improved system performance
  • ▪ Selectable auto-calibration mode returns sensor to baseline values
  • ▪ ±40ppm, ±3% of reading

more information & related documents

Family Description

The Senva CO2RL Wall CO2 Transmitter Series maximize energy savings by ensuring optimal ventilation. Measuring exhaled CO2 levels ensures air is conditioned only when needed. The CO2RL is a flush mount design sensor with NDIR sensing element and features that include a standard LCD, setpoint relay, menu selectable auto-calibration and provision to offset the reading +/-250ppm. When you need the right product, right now, count on Kele.

Kele Description




Recommended for You