| Model | 7755 |
| CO2 Range | 0~9999 ppm (2001~9999 ppm out of scale range) |
| CO2 Resolution | 1 ppm |
| CO2 Accuracy | ±50 ppm ±5% of reading (0~2000 ppm), other range are not specified |
| CO2 Response Time | <30 Seconds (90% step change) |
| CO2 Warm-up Time | 30 Seconds |
| Air Temperature Range | -10~60℃, 14~140! |
| Air Temperature Resolution | 0.1℃, 0.1! |
| Air Temperature Accuracy | ±0.6℃, ±0.9! |
| Air Temperature Response Time | <2 mins (90% step change) |
| Humidity Range | 0.1~99.9% RH |
| Humidity Resolution | 0.1% RH |
| Humidity Accuracy | ±3%RH (at 25℃, 10~90%RH); others ±5%RH |
| Humidity Response Time | <10 mins (90% step change) |
| LCD Size | 44(L) * 26(W) mm |
| Meter Size | 205(L) * 70(W) * 56(H) mm |
| Operating Temperature | 0~50℃ |
| Operating RH% | 0~95% RH (avoid condensation) |
| Storage Temperature | -20~50℃ |
| Storage RH% | 0~90% RH (avoid condensation) |
| Power Supply | AA * 4 PCS |
| Battery life | > 24 hours (Alkaline Battery) |
| Weight | ~200g |
| Standard Package | Meter, Manual, Batteries, Hard Carry Case |
Malaysia