| Model | 77597 |
| CO2 Range | 0~9999 ppm (5001~9999 ppm out of scale range) |
| CO2 Resolution | 1 ppm |
| CO2 Accuracy | ±30 ppm ±5% of reading (0~5000 ppm), other range are not specified |
| CO2 Response Time | ＜30 Seconds (90% step change) |
| CO2 Warm-up Time | 30 Seconds |
| CO Range | 0~1000 ppm |
| CO Resolution | 1 ppm |
| CO Accuracy | ±3 ppm for less than 20 ppm, ±5 ppm for less than 100 ppm, ±10% of reading for 101~500 ppm, ±20% of reading for 501 ppm and above |
| CO Response Time | ＜60 Seconds (90% step change) |
| Air Temperature Range | -20~60℃, -5~140! |
| Air Temperature Resolution | 0.1℃, 0.1! |
| Air Temperature Accuracy | ±0.6℃, ±0.9! |
| Air Temperature Response Time | ＜2 mins (90% step change) |
| Relative Humidity Range | 0~99.9% RH |
| Relative Humidity Resolution | 0.1% RH |
| Relative Humidity Accuracy | ±3%RH (at 25℃, 10~90%RH); others ±5%RH |
| Relative Humidity Response Time | ＜10 mins (90% step change) |
| Dew Point Temp. (DP) | -20~59.9℃ |
| Wet Bulb Temp. (WB) | -5~59.9℃ |
| LCD Size | 44(L) * 26(W) mm |
| Meter Size | 205(L) * 70(W) * 56(H) mm |
| CO2 Sensor Operating Temperature | -20~50℃ |
| CO Sensor Operating Temperature | 0~50℃ |
| Other parameters Operating Temperature | -20~60℃ |
| Storage Temperature | -20~60℃ |
| Storage RH% | 10~90% RH (avoid condensation) |
| Power Supply | AA * 4 PCS or 9V adaptor |
| Battery life | ＞ 24 hours (Alkaline Battery) |
| IP Rating | ＞ IP40 |
| EMC | EN 50270:2015 |
| Weight | ~200g |
| Standard Package | Meter, Manual, Batteries, USB Cable & CD, Hard Carry Case |
Malaysia
