• Uses Electrochemical, Catalytic Bead and Infrared Sensors
• Three on board user programmable relays
• Digital display of TWA, STEL, concentration and relay status
• Analog communication to BAS or through RS-485 digital communication protocols
• Integral buzzer with three tones
• NEMA 4X enclosure with knock-outs
• Operates on 24 VAC/VDC