ProSight Indoor Carbon Monoxide Transmitter – LCD Display, Relay Alarm

The ProSight Indoor Carbon Monoxide Transmitter – LCD Display, Relay Alarm is a wall-mounted carbon monoxide (CO) monitoring device designed to continuously measure CO concentration in indoor and enclosed environments.

Carbon monoxide can accumulate in areas where combustion engines, heating equipment, cooking appliances, or other CO sources are present. Continuous monitoring allows building operators and control systems to identify increasing CO concentrations and take appropriate action, such as increasing ventilation or activating an alarm.

The ProSight Indoor Carbon Monoxide Transmitter – LCD Display, Relay Alarm uses a high-performance electrochemical sensor with a typical service life of approximately five years. The sensor is designed to provide rapid response, stable performance, and high measurement accuracy. The product is available with selectable measurement ranges of 0-100 ppm, 0-250 ppm, or 0-400 ppm, with an accuracy specification of ±5% FS and a T90 response time of ≤60 seconds.

The transmitter provides 4-20mA and 0-10V output modes for integration with HVAC controllers, PLCs, building automation systems, ventilation equipment, and other monitoring platforms. A configurable SPDT relay can also be used for independent control or alarm functions.

It features overvoltage and reverse-connection protection, a lightweight PC housing, and a standard 86-box installation method, making it suitable for fixed indoor installation.

How Does It Work?

• The transmitter is installed at an appropriate indoor CO monitoring location.
• The electrochemical sensor detects carbon monoxide molecules in the surrounding air.
• The sensor generates an electrical response proportional to the detected CO concentration.
• Internal electronics process the sensor signal and calculate the CO concentration.
• The measured CO level is converted into a corresponding 4-20mA or 0-10V output signal.
• The analog output can be connected to an HVAC controller, PLC, BMS, SCADA system, or other compatible control equipment.
• When the CO concentration reaches a configured threshold, the relay can activate an alarm or control function.
• The connected ventilation system can respond by increasing fresh-air circulation or activating exhaust equipment.
• Operators can continuously monitor CO conditions and respond to changing indoor air quality.
• The transmitter's overvoltage and reverse-connection protection help improve electrical reliability during installation and operation.

Why Choose this Product?

• High-performance electrochemical sensor – Designed for reliable and stable carbon monoxide detection.
• Continuous CO monitoring – Provides ongoing measurement rather than relying on occasional manual testing.
• Multiple measurement ranges – Available in 0-100 ppm, 0-250 ppm, and 0-400 ppm configurations.
• High measurement accuracy – Specified accuracy of ±5% FS.
• Rapid response – T90 response time specified at ≤60 seconds.
• Flexible analog outputs – Supports 4-20mA and 0-10V output modes.
• Independent alarm/control capability – Configurable relay action point supports independent control or alarm functions.
• Electrical protection – Includes overvoltage and reverse-connection protection.
• Long sensor service life – Electrochemical sensor has a typical lifetime of five years.
• Compact wall-mounted construction – Suitable for fixed indoor installation.
• Standard 86-box installation – Designed for convenient installation using a common wall-box format.
• Optional LCD backlight display – Manufacturer specifies LCD backlight display as part of its available output/display options.
• Broad application range – Suitable for HVAC systems, commercial kitchens, workshops, underground parking facilities, and other enclosed spaces.

Benefits

• Helps detect carbon monoxide accumulation in enclosed areas.
• Supports continuous indoor air-quality monitoring.
• Helps ventilation systems respond to elevated CO concentrations.
• Supports automatic ventilation and exhaust control.
• Provides an additional layer of environmental monitoring for enclosed spaces.
• Helps facility operators identify changing CO conditions.
• Supports integration with existing HVAC and building automation systems.
• Provides flexible 4-20mA and 0-10V signal options.
• Enables independent alarm or control functions through the relay.
• Helps reduce the need for frequent manual CO measurements.
• Supports long-term monitoring with a typical five-year sensor lifetime.
• Electrical protection helps reduce the risk of damage from incorrect wiring or voltage conditions.
• Compact installation simplifies integration into indoor monitoring systems.
• Suitable for commercial, industrial, and infrastructure applications.