Honeywell 66871 Duct Mount CO2 Sensor, Without Display, 0/2-10Vdc or 0/4-20MA Output

CARBON DIOXIDE SENSOR, DUCT MOUNT, NO DISPLAY 1 MO

The 66871 Carbon Dioxide Sensor, model 66871, is a duct mount point sensor that has outputs of 0 to 2Vdc for use with local alarm or control panels, or 4 to 20mA for integration into HVAC control systems. The 66871 is used in both commercial HVAC applications and residential fireplaces.

The HONEYWELL 66871 DUCT MOUNT Carbon Dioxide (CO2) Sensor is designed for use in commercial and industrial tank monitoring systems. The 66871 is a single-gas CO2 sensor for duct mounting and is capable of measuring levels of carbon dioxide at concentrations to 10,000 ppm. The 66871 features a low 0.5% relative accuracy for early detection of leaks and high accuracy over wide temperature ranges. It has five built-in diagnostic functions for improved trouble shooting.

The 66871 is a duct mount carbon dioxide (CO2) sensor designed for monitoring indoor air quality. The temperature compensated sensor has a diameter of 1.5 in (38 mm) and an adjustable mounting flange from 21 in (53 cm) to 36 in (91 cm).

The 66871 Duct Mount Carbon Dioxide sensor is a field-installable, wall-mountable Honeywell solution designed to provide reliable, continuous performance. The sensor is placed directly in the duct during installation where it continuously monitors levels of CO2 gas and provides gas concentration levels in parts per million (PPM). A minimum of one per floor recommended when central plant does not have a signal from remote sensors.

Keep track of changing carbon monoxide levels with the 66871 CO2 sensor. This duct mount sensor features a 4-20mA output and measures 0 to 1000 ppm carbon monoxide at an accuracy of +/- 25 % relative humidity.

The 66871 is a carbon dioxide sensor designed to monitor carbon dioxide (CO2) levels in duct work. The 66871 features a compact DIN-rail/in-line housing, low power consumption, and an integrated temperature probe with display. A built-in relay is activated when the CO2 levels exceed the set point level. This allows users to sample and analyze CO2 concentrations directly from the exhaust side of a forced air heating, ventilating or air conditioning system.

Honeywell's 66871 -001 is the replacement CO2 sensor for the Honeywell CO2 alarms, such as listed below.