| Power Supply | Comms | 16-30VDC/24VAC(1), 5W max, 200mA max. | 
| Analog | 12-30VDC/24VAC(1), 5W max, 200mA max. | 
| Wiring | Conductor | 14-24 AWG, Minimum 600V, 75°C | 
| Terminal Torque | 0.5 N•m | 
| Outputs (Analog) | 2 programmable outputs | 0-10V, 0-5V, and 4-20mA(2) (selectable) | 
| CO Output Scaling | 0-200ppm (default), 0-500ppm (menu selectable) | 
| NO2 Output Scaling | 0-10ppm (default), 0-10ppm (menu selectable) | 
| CO2 Output Scaling | 0-10,00ppm (default), 0-10,00ppm (menu selectable) | 
| Propane/Methane/Hydrogen Output Scaling | 0-50% LEL (default), 0-50% LEL (Menu Selectable) | 
| Oxygen Output Scaling | 0-25% Vol (default), 0-25% Vol (menu selectable) | 
| Refrigerant Output Scaling | 0-1000ppm (default), 0-1000ppm (menu selectable) | 
| H2S Output Scaling | 0-100ppm (default), 0-100ppm (menu selectable) | 
| Ammonia NH3 Output Scaling | 0-100ppm (default), 0-100ppm (menu selectable) | 
| Temp Output Scaling (optional) | 20 to 85°C | 
| BACnet /Modbus | Protocol RS-48 | BACnet MS/TP, Modbus RTU | 
| Baud Rates | 9600, 19200, 38400, 57600, 76800, 115200 | 
| RS-485 | 1/4 unit | 
| Trouble Relay | Trouble Relay characteristics | N.C. 1A@24VAC/30VDC (50/60Hz) (no mains connection) | 
| Alarm Relay | Alarm relay characteristics | N.O. 1A@24VAC/30VDC (50/60Hz) (no mains connection) | 
| LED | Green, Yellow, Red | Green = Normal, Yellow = Warning, Red = Alarm | 
| Audible Alarm Exposure | 85dB Piezo transducer | 30 minutes above alarm setpoint per UL2075; tamper-proof silence/reset button (menu selectable) | 
| CO Sensor Performance | Type | Electrochemical | 
| Accuracy | ±5% of default range(3) ±5%of reading above 200ppm | 
| Resolution | 1ppm | 
| Certifications | UL2075 Listed Component | 
| Life expectancy | >7 years | 
| Recommended Calibration | Annual | 
| Recommended Height | 3 to 6 feet; coverage 5000-7500 sq ft. | 
| NO2 Sensor Performance | Type | Electrochemical | 
| Accuracy | ±5% of default range(4) ±5%of reading above 20ppm | 
| Resolution | 0.1ppm | 
| Life expectancy | >7 years | 
| Recommended Calibration | Annual | 
| Recommended Height | 3 to 6 feet; coverage 5000-7500 sq ft. | 
| Carbon Dioxide (CO2) | Type | Non-Dispersive Infrared (NDIR) | 
| Accuracy (5) | ±(30ppm +3% of reading) (400-2000ppm), @-10-50°C ±(50ppm +5% of reading) Standard (2000-5000ppm), @-10-50°C ±(50ppm+3% of reading) Dual Channel (2000-5000ppm), @-10-50°C ±(100ppm+10% of reading) (5000-10000ppm), @0-50°C | 
| Drift with ABC disabled (6) | 35ppm/month (6) (Standard) 5ppm/month (6) (Dual Channel) | 
| Range | 0-2000/5000ppm; Programmable up to 10,000ppm | 
| Response time | 30 s | 
| Sample rate | 1 s | 
| Recommended Height | 3 to 6 feet; coverage 5000-7500 sq ft. | 
| Resolution | 1 ppm | 
| Life expectancy | 15 years | 
| Methane/Propane/Hydrogen Sensors Performance | Type | Catalytic | 
| Detection Range | 0-50% LEL (Lower Explosive Limit) | 
| Accuracy | 5% of range | 
| Resolution | 1%LEL | 
| Life expectancy | >5 years | 
| Recommended Calibration | Bump test annually, calibrate or replace if necessary (12) | 
| Recommended Height | Hydrogen/Methane: 0.5 to 1 foot from ceiling; coverage 5000-7500 sq ft Propane: 1-3 ft. above finished floor, coverage area 5000 sq. ft. | 
| Oxygen Sensor Performance | Type | Electrochemical | 
| Detection Range | 0-25% Volume | 
| Accuracy | ±5% of range | 
| Resolution | 0.1% | 
| Life expectancy | 5 years | 
| Recommended Calibration | Annual | 
| Recommended Height | 3 to 6 feet; coverage 5000-7500 sq ft | 
| H2S Sensor Performance | Type | Electrochemical | 
| Detection Range | 0-100 ppm | 
| Accuracy | ±5% of range | 
| Resolution | 1 ppm | 
| Life expectancy | 5 years | 
| Recommended Calibration | 6 months | 
| Recommended Height | 3 to 6 feet; coverage 5000-7500 sq ft | 
| Ammonia Sensor Performance | Type | Electrochemical | 
| Accuracy | ±5% of range | 
| Resolution | 0.1 ppm | 
| Life expectancy | 5 years | 
| Recommended Calibration | 6 months | 
| Recommended Height | 0.5 to 1 foot from ceiling; coverage 5000-7500 sq ft | 
| Refrigerant Sensor Performance | Type | Electrochemical | 
| Detection Range | 0-25% Volume | 
| Resolution | 1 ppm | 
| R134A Sensitivity (6) | @300ppm test gas: 450 ppm R410A, 425 ppm R407C, 400 ppm R404A, 370 ppm R22, 300 ppm R134A | 
| Other detectable gases (8) | R407A, R407F, R427A, R452B, R507, R448A, R449A, R422A, R422D, R452A, R513A, R514A, R32 | 
| Life expectancy | >10 years (typical life expectancy for MOS sensors) | 
| Recommended Calibration | 6 months | 
| Recommended Height | 6 inches above floor; no more than 18 inches above lowest level of equipment location for leak detection; coverage 5000-7500 sq ft. | 
| Max Elevation (9) | 2629 m (8625 ft) | 
| Operating Environment | Temperature, continuous | -20 to 50°C | 
| Humidity | 15-90% continuous, 0-99% intermittent | 
| Max Elevation | 2000m | 
| Enclosure | Material | ABS/Polycarbonate | 
| Dimensions | 5.7”h x 3.0” x 1.8”d | 
| Rating | IP20 | 
| Agency | Compliance | RoHS |