| Measurement | Specification |
| Operating Temperature | 32°F to 122°F (0°C to 50°C) |
| Storage Temperature | -4°F to 140°F (-20°C to 60°C) |
| Operating & Storage RH | 0-95%, non-condensing |
| CO2 Measurement | |
| Accuracy at 0~3000ppm | ±50ppm or ±5% of reading, whichever is greater |
| Accuracy over 3000ppm | ±7% |
| Repeatability | 20ppm at 400ppm (standard dev. of 10 readings in 1 minute) |
| Measurement Range | 0-5000ppm |
| Display Resolution | 1ppm (0-1000); 5ppm (1000-2000); 10ppm (>2000) |
| Temp Dependence | ±0.1% of reading per °C or ±2ppm per °C, whichever is greater, referenced to 25°C |
| Pressure Dependence | 0.13% of reading per mmHg (corrected by user's altitude input) |
| Response Time | <2min for 63% of step change or <4.6min for 90% step change |
| Warm-up Time | <30 sec |
| Temp Measurement | |
| Operating Temperature | 32°F to 122°F (0°C -50°C) |
| Display Resolution | 0.2°F (0.1°C) |
| Accuracy | ±1°F (±0.5°C) |
| Response Time | <20min (63%) |
| RH Measurement | |
| Range | 0-100% |
| Accuracy | ±5% |
| Resolution | 1% on Main Reading, 0.1% on Max Min Reading |
| | |
| Power Requirements | 160mA Peak, 15mA average at 5.0V |
| Battery Life | 1000mA Recharge LI Battery
48 hours (Test by factory laboratory) |
| Dimension | 120*91.2*27mm (4.7*3.6*1.1inch) |
| Weight | 148g ( 5.22oz) Device only, AC Adapter not included |
Complaint
