Know the air you’re breathing!

Founded in 1995, Critical Environment Technologies Canada Inc. (CETCI) is a well-established, leading global manufacturer of gas detection systems, including self-contained systems, controllers and transmitters, and Indoor Air Quality (IAQ) monitors.

CETCI’s permanently installed, stationary gas detectors and gas detection systems provide continuous monitoring for potential leaks, flexible field configurations and robust functionality. Our self-contained systems, controllers and transmitters (analog and digital) are installed in commercial HVAC, institutional, municipal and industrial markets. Many of these applications are for vehicle exhaust, but areas of specialization include refrigeration plants, commercial swimming pools, water purification, arenas, wineries and breweries, waste water treatment and more.

cGAS-SC Self-Contained Controller

The cGAS-SC Self-Contained Controller is a versatile gas detector that offers up to 3 channels for monitoring toxic, combustible and refrigerant gases in commercial and light industrial, non-hazardous (non-explosion rated) environments.

It can be used as a standalone monitoring device or part of a larger gas detection system. It accepts 4-20 mA analog inputs and all models feature field configurable BACnet® or Modbus® output for communicating with a controller or a BAS.

Sensor configurations include combinations of internal and/or remote sensors, including 3 remote or 1 internal + 2 remote sensors. Plug & Play Smart Sensor technology makes replacing the pre-calibrated sensors quick and easy.

Standard features include two high voltage SPDT dry contact relays with field configurable time delays and trigger levels, one horn and strobe connection, a field selectable internal audible alarm, an LCD display with LED indicators for channel alarm status and fault conditions and an intuitive menu system with password protection. Enhanced logic control with 8 priorities/zoning capabilities allows flexibility in configuration and operation.

Specialized optional features include, line voltage power supply, two 4 – 20 mA outputs that can be used for VFD control, RH and temperature monitoring, low temperature operation, side mounted strobe, extra loud or water tight side mounted buzzer and wash-down / water spray protection.

Click for Datasheet: cGAS

FCS-8 Flexible Control System

The FCS Flexible Control System is a sophisticated, high performance controller that offers multi-channel configurations for monitoring toxic, combustible and refrigerant gases with versatile control functionality for non-hazardous, non-explosion rated, commercial and light industrial applications. The FCS is designed to accept inputs from digital and/or analog transmitters and/or Peripheral Devices (in various combinations), using Modbus® RTU RS-485 or 4-20 mA analog input.

The FCS is available in 4 channel, 8 channel, 32 channel and 128 channel models with either Modbus® RTU RS-485 WAN output or with BACnet® MS/TP RS-485 WAN output for communicating with a Building Automation System (BAS).

All models include, four configurable SPDT dry contact relays with field configurable time delays and trigger levels, a full colour LCD resistive touch screen with LED panel indicating configurable channel alarm status, relay status and fault conditions, intuitive menu system with password protection, enhanced logic control, priorities/zoning capabilities, a USB port for firmware upgrades, data logging and a door-mounted, audible alarm. The FCS has flexible configuration settings for analog outputs and supports 4-20 mA and Modbus® driven VFDs.

Optional value added features include, analog inputs and/or analog outputs, a top mounted strobe, a locking door, a manual shut off switch and a water tight, door-mounted audible alarm.

Click for Datasheet: FCS

DCC Dual Channel Controller

The DCC Dual Channel Controller is a comprehensive and dependable, self-contained system that offers one or two channel configurations for monitoring toxic and combustible gases and PID TVOCs with straight-forward control functionality for non-hazardous, non-explosion rated, commercial and light industrial applications. Sensor configurations include, two internal electrochemical sensors (one must be CO), or one internal electrochemical and one remote catalytic or PID sensor or a remote 4-20 mA transmitter. Field configurable settings are done through an easy to navigate, comprehensive menu structure.

Click for Datasheet: DCC