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CT1O Series

CT1O CO2 Temp Outdoor
Higher Reliability, Faster Installation, Superior Accuracy | Sense the Difference

CT1O CO2/Temp Outdoor

Rugged enclusure Field replaceable CO2 element for lower total lifetime cost Made in the USA - Industry best 7-year warranty!

Adjustable for ranges of 2000, 5000, or 10,000 ppm CO2
Field replaceable dual-channel NDIR element
Dual 3-wire 4-20mA and 0-5/0-10V (selectable)
Rugged gasketed enclosure

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
Non-dispersive infrared sensing element (NDIR)
Field replaceable dual-channel CO2 sensor
15+ year life expectancy on CO2 sensing element
Industry leading 7-year limited warranty on electronics; NDIR module 3 years
±30ppm, ±3% of reading

Why use Dual-Channel CO2 sensors for outdoor or greenhouse

Description

Featuring a gold plated dual-channel NDIR sensor for the best accuracy and the highest reliability for your outdoor or greenhouse sensing needs. An optional built-in LCD display makes set up a snap, and a standard solid-state setpoint relay makes demand ventilation simple. Dual 4-20mA and 0-10/5 vdc outputs.

Applications

- Controlling ventilation in response to occupancy
- Facilitates compliance with ASHRAE 62.1 standard for air quality
- Outdoor or greenhouse applications

Sort by:

Product		Price
CT1O-A3D	CO2 Outdoor LCD NoTemp	$612.15 / EA
CT1O-A3X	CO2 Outdoor NoLCD NoTemp	$567.63 / EA
CT1O-B3D	CO2 Outdoor LCD TempTransmitter	$667.80 / EA
CT1O-B3X	CO2 Outdoor NoLCD TempTransmitter	$601.02 / EA
CT1O-C3D	CO2 Outdoor LCD 100PT RTD	$667.80 / EA
CT1O-C3X	CO2 Outdoor NoLCD 100PT RTD	$601.02 / EA
CT1O-D3D	CO2 Outdoor LCD 1000PT RTD	$667.80 / EA
CT1O-D3X	CO2 Outdoor NoLCD 1000Pt RTD	$601.02 / EA
CT1O-E3D	CO2 Outdoor LCD 10K Type 2 Thermistor	$667.80 / EA
CT1O-E3X	CO2 Outdoor NoLCD 10K Type 2 Thermistor	$601.02 / EA

Type	Title
Cross Reference	CO2D CO2D-VAL CO2O End of Life Announcement
Technical Reference	Dual Channel CO2 for Outdoor and Greenhouse Applications
Videos	Why use Dual-Channel CO2 sensors for outdoor or greenhouse
Manual	CT1DO Installation Manual
Certifications	Senva BABAA Declaration
Datasheet	Senva Thermistor Curves
Product Data	CT1O CO2/Temp Outdoor.pdf
Warning: The datasheet is designed for reference only. Refer to installation instructions that accompany the product and heed all safety instructions. Product improvement is a continuing process at Senva. Changes may occur to products without prior notice.

All prices shown are excluding tax unless otherwise specified.

has been added to your cart. This product requires 2 PWT sensors to operate.
Please add 2 PWT sensors to your cart.

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Power Supply		12-30VDC/24VAC(1), 100mA max.
Analog Outputs	Dual Analog	3-wire 4-20mA and 0-5V/0-10V (2) (jumper)
Analog Outputs	Output scaling	0 - 2000 or 0 - 5000 ppm (selectable)
Set-point Relay	Programmable	Solid-state, 1A @ 30VAC/DC, N.O.
Sensor Performance	Type	Non-dispersive Infrared (NDIR)
	Accuracy (Standard)	±30ppm, ±3% of reading (400-2000ppm), @-10-50°C, 0-85%RH ±50ppm, ±5% of reading (2000-5000ppm), @-10-50°C, 0-85%RH ±100ppm, ±10% of reading (5000-10000ppm), @ 0-50°C, 0-85%RH
	Accuracy (Dual Channel)	±30ppm, ±3% of reading (400-2000ppm), @ 0-50°C, 0-85%RH ±50ppm, ±3% of reading (2000-5000ppm), @-10-50°C, 0-85%RH ±100ppm, ±10% of reading (5000-10000ppm), @ 0-50°C, 0-85%RH
	Drift with ABC disabled (Standard)	35 ppm/month
	Drift with ABC disabled (Dual Channel)	5 ppm/month
	Pressure Dependency	+1% reading per kPa (0.143PSI) deviation from nominal (101kPa, 14.7PSI)
	Response time	60 seconds to 90% reading
	Output update rate	1 second
	Element Operating Environment	4 to 122°F (-20 to 50°C), 0 to 95% RH
LCD Menu Setup Parameters	SPH, Setpoint, Hi (On point)	500ppm to full-scale (800ppm default)
	SPL, Setpoint, Lo (Off point)	400ppm to full-scale-50 (700ppm default)
	SCL, Scaling	0-2000ppm or 0-5000ppm
	SCL, Scaling	(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	-4 to 122F (-20 to 50C)
Operating Environment	Humidity	0-95% non-condensing
Enclosure	Material	Polycarbonate; aluminum tube
	Dimensions	4.0”h x 4.4”w x 2.1”d

CT1O Series

CT1O CO2 Temp Outdoor Higher Reliability, Faster Installation, Superior Accuracy | Sense the Difference

CT1O CO2 Temp Outdoor
Higher Reliability, Faster Installation, Superior Accuracy | Sense the Difference