Critical Environment Technologies Canada Inc. (CETCI) | Manufactures Gas Detectors & Indoor Air Quality (IAQ) Portable Monitors -

Transmitters

	AST Analog Transmitter » 4 - 20 mA or 0 - 10 VDC linear output signal » Power requirement 12 - 30 VAC or 16 - 30 VDC » Available with electrochemical, catalytic, solid state or PID sensors
	AST-I Industrial Infrared Transmitter » Dual temperature compensated pyroelectric infrared detectors » Low power consumption » Target gases include CO₂, Hydrocarbons (including Methane), Nitrous Oxide
	AST-IRT Refrigerant Transmitter » Use accurate infrared sensors » Detect a wide range of refrigerants » Simple one button calibration
	AST-IS CO2 Transmitter » Linear 4 - 20 mA or 0 - 10 VDC output » Operating power 24 VDC or 24 VAC nominal » Lifetime calibration
	ATW Two Wire Transmitter » 4 - 20 mA output signal » Power requirement 12 - 28 VDC » Loop powered wiring, 2 conductor
	DST Digital Transmitter » RS485 digital output » Configured for four wire multi-drop wiring » Simple calibration procedure
	LPT Economical Transmitter » 2-wire loop, 3-wire VDC or 4-wire VAC power » 4 - 20 mA linear output signal » Includes sensor CEF (calibration extending firmware)
	PET BACnet® Transmitter » MS / TP BACnet^® communication » Single or dual gas sensor » Includes temperature sensor & sensor Calibration Extending Firmware (CEF)