VENTS-US CO2-1 Carbon Dioxide Sensor with LED Indication and On/Off (SKU CO2-1-SENSORS)

The VENTS-US CO2-1 sensor measures carbon dioxide levels in the space and adjusts ventilation to match. When CO2 climbs, the fan speeds up. When the room empties out, it backs off, so you're not over-ventilating an empty house or under-ventilating a full one.

It works with single-room, residential, and commercial HRV/ERV systems that accept an external control signal. A relay output switches the fan on and off, and a 0-10V analog output gives smooth speed control on EC motor units. Requires a 24V supply.

Product Features:

• CO2-Based Ventilation: ventilation responds to actual occupancy instead of running at a fixed speed
• Three Operation Modes: on, off, or automatic CO2 control
• LED Indication: shows CO2 level and operating status at a glance
• Relay and Analog Outputs: on/off switching plus 0-10V speed control, adjustable to 2-10V, 0-20mA, or 4-20mA
• Self-Calibration: holds accuracy without manual recalibration

Warranty

Backed by the VENTS-US manufacturer warranty.