Overview
Hospitality Enviro Tech CO2 humidity meter could measure the indoor air quality (IAQ) index, including the CO2 concentration, CO2 level, air temperature, dew point, wet bulb temperature and humidity. The Carbon Dioxide value can be output to PC for on-line analysis via USB interface. It can be calibrated easily in the air. This device has a relay function, which could transfer the signal to control the other types of equipment. It has the stable NDIR CO2 sensor, and it is the ideal instrument for IAQ diagnosis. Its big LCD could be the best CO2 monitor for long-term monitoring. Users could use the relay function to control or transfer the data to the following related instruments. And the built-in alarm output is especially helpful in ventilation control and HVAC system performance verification.
Features
- NDIR wave guide technology
- Large LCD display
- Automatic background calibration
- Alarm output drive relay to control system
- TWA and STEL display
Technical Specifications
| CO2 measurement range | 0 ppm to 9999 ppm (5001 ppm to 9999 ppm out of scale range) |
| CO2 resolution | 1 ppm |
| CO2 accuracy | ±30 ppm ±5 % of reading (0 ppm to 5000 ppm), other ranges are not specified |
| CO2 response time | <30 seconds (90 % step change) |
| CO2 warm-up time | 30 seconds |
| Air temperature measurement range | 14 °F to 140 °F (-10 °C to 60 °C) |
| Air temperature resolution | 0.1 °F, 0.1 °C |
| Air temperature accuracy | ± 0.9 °F, ± 0.6 °C |
| Air temperature response time | <2 mins (90 % step change) |
| Humidity measurement range | 0 % to 99.9 % RH |
| Humidity resolution | 0.1 % RH |
| Humidity accuracy | ±3 % RH at 77 °F (25 °C) (10 % to 90 % RH), Others ±5 % RH |
| Humidity response time | <10 min (90% step change) |
| Dew point temperature (DP) | -4 °F to 139.82 °F (-20 °C to 59.9 °C) |
| Wet bulb temperature (WB) | 23 °F to 139.82 °F (-5 °C to 59.9 °C) |
| Operating temperature | 32 °F to 122 °F (0 °C to 50 °C) |
| Operating RH % | 0 % to 95 % RH (avoid condensation) |
| Storage temperature | -4 °F to 122 °F (-20 °C to 50 °C) |
| Storage RH % | 0 % to 90 % RH (avoid condensation) |
| Power supply | 12 V DC Adaptor |
| Battery life | <50 mA (average), <310 mA (peak) |
| LCD size (L x W) | 2.55 in x 1.96 in (65 mm x 50 mm) |
| Meter size (L x W x H) | 5.11 in x 3.34 in x 2.36 in (130 mm x 85 mm x 60 mm) |
| Weight | 7.05 oz (200 g) |
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