| Feature | Range | Resolution | Accuracy |
| Temperature | -20 to +60°C | 0.1°C |
± 0.9°C (40°C to 60°C) ± 0.5°C (5°C to 40°C) ± 1.1°C (-20°C to 5°C) |
| Relative Humidity | 10% to 90% RH (NC) | 1% | ± 2% RH (10% RH to 90% RH) |
| Air Velocity (with optional 975VP probe) | 0.25m/sec to 15m/sec | 0.005m/sec |
±4% or 0.02m/sec* whichever is greater *For velocity readings above 50fpm |
| CO2 | 0 to 5000ppm | 1ppm | 2.75% + 75ppm |
| CO | 0 to 500ppm | 1ppm | ±5% or ±3ppm whichever is greater, @ 20°C and 50% RH |
| Calculated Specification | |||
| Dew point temperature | -44 to 57°C | 0.1°C |
± 1°C (-20°C to 50°C RH: 40% to 90%) ± 2°C ( -20°C to 50°C RH: 20% to 40%) ± 4°C (RH: 10% to 20%) |
| Wet bulb temperature | -16 to 57°C | 0.1°C |
± 1.2°C (RH: 20% to 90% temp: -20°C to 60°C) ± 2.1°C (RH: 10% to 20%) |
| Volume flow rate (in a duct) | 0 to 3.965m3/min | 0.001m3/min | |
| % Outside Air based on Temperature | 0 to 100% | 0.1% | |
| % outside air based on CO2 | 0 to 100% | 0.1% | |
| General specifications | |||
| Data logging | 99 records (discrete), 25000 continuous) | ||
| Battery | Rechargeable Li-Ion (primary), three-AA (backup) | ||
| Operating and storage temperature | -20°C to +50°C |


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