A portable meter that measures CO2, RH, and T is a handheld device used to measure the concentration of carbon dioxide, relative humidity, and temperature of the surrounding air. It is commonly used for indoor air quality monitoring, HVAC system performance evaluation, and environmental monitoring. The device typically has sensors for CO2, RH, and T and displays real-time measurements on a screen
| Parameters | Description |
| Meter Size | 205(L) x 70(W) x 56(H) (in mm) |
| Supply | AA x 4 PCS |
| LCD Size | 44(L) x 26(W)mm |
| Battery Life | > 24 Hours (Alkaline Battery) |
| Weight | 200g |
| Sensor | RTD PT- 100 |
| CO2 Range | 0 to 9999 ppm |
| CO2 Resolution | 1 ppm |
| CO2 Accuracy | ± 50 ppm ± 5% of Reading |
| CO2 Response Time | 30 Seconds (90% step change) |
| Humidity Range | 0.1 to 99.9% RH |
| Humidity Resolution | 0.1% RH |
| Humidity Accuracy | ± 3% RH (at 25ºC, 10 to 90% RH) |
| Humidity Response Time | 10 mins |
| Air Temperature Range | -10 ºC to 60 ºC |
| Air Temperature Accuracy | ± 0.6 ºC |
| Air Temperature Response | 2 min (90% step change) |
- Portable light weight handheld meter
- Lcd display
- Alarm for high co2 level
- Auto calibration
- Monitoring & analysis allows continuous monitoring of co2, rh & temperature level. Data output to pc every 2 seconds.
- Multiple measurement displays at once- co2, temperature, and relative humidity readings are all shown on the lcd display at the same time
- Normal/ max/ min/ average (15mins/ 8hrs) mode- it can show not only the normal, maximum and minimum co2 readings but also the weighted average co2 readings in the past 15mins (stel mode) and 8 hours (twa mode).
- Audible co2 sound- the alarm beeps when the co2 level exceeds the preset value. The alarm threshold is adjustable.
- Accuracy: co2: 0~2000ppm, ±50ppm or ±5% of the reading; above 2000ppm, ±10% of the reading
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