
RC Systems SenSmart Combustible gas detectors utilize both catalytic bead sensors and infrared sensors to provide reliable readings in any application. These units are designed to detect a wide range of gases, including acetylene, butane, hexane, methane, propane, and many more.


Reliable, gas detection devices with 50+ different gas sensor choices. Designed for use in almost every type of application, Critical Environment Technologies’ low voltage gas detectors feature 4-20 mA analog, 0-10 volt, BACnet® MS/TP RS-485 or Modbus® RTU RS-485 digital output with 1, 2 or 3 gas channels in a water / dust tight, corrosion resistant enclosure. For specialized applications we have gas detectors for vent line applications, sample draw systems and an explosion proof product line for use in hazardous rated areas. Choose from 50+ toxic, combustible and refrigerant gases including Ammonia, Carbon monoxide, Carbon dioxide, Chlorine, Ethylene, Ethylene oxide, Formaldehyde, Hydrogen, Hydrogen fluoride, Hydrogen sulphide, Nitric oxide, Nitrogen dioxide, Oxygen, Ozone, Sulfur dioxide, Ethanol, Dimethyl ether, Methanol, Methane, Propane, Hydrogen, TVOCs, R134A, R410A, RSF6 and more.


RC Systems’ SenSmart 1200 CAT is a low cost, 3-wire bridge output catalytic bead gas detector. Certified for Class 1, Division 1 applications, the SenSmart 1200 detects a wide range of combustible gases, including acetylene, methane, propane, butane, and ethane.


RC Systems’ SenSmart Millenium microprocessor-based intelligent infrared gas detector is ideally suited for use in harsh environments and any application where conventional catalytic detection is prohibitive. SenSmart Millenium infrared gas detectors perform reliably in the presence of silicone and other catalyst-poisoning agents. They are engineered to operate in oxygen-free environments and locations where high background gas levels are present.
