| Model | 7730 |
| CO2 Range | 200~9999 ppm |
| CO2 Resolution | 1 ppm |
| CO2 Accuracy | ±40 ppm ±3% of reading (400~2000 ppm), other range is 10% of reading |
| CO2 Response Time | <5 mins (90% step change) |
| CO2 Warm-up Time | 10 Seconds |
| Air Temperature Range | 0~50℃, 32~122! |
| Air Temperature Resolution | 0.1℃, 0.1! |
| Air Temperature Accuracy | ±1℃, ±1! |
| Air Temperature Response Time | <2 mins (90% step change) |
| Humidity Range | 5~95% RH |
| Humidity Resolution | 1% RH |
| Humidity Accuracy | ±5%RH (at 25℃, 10~90%RH); others ±7%RH |
| Humidity Response Time | <20 mins (90% step change) |
| LCD Size | 77(H)*46(W)mm |
| Meter Size | 86(L) * 86(W) * 51(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 | 100~240VAC, 50~60Hz, 1.5 VA or 5V DC |
| Power Consumption | <2W |
| Buzzer | ~70dB at 10cm distance |
| IP | IP30 |
| Mounting Height | 1.4~1.8 M |
| Weight | 150g |
| Standard Package | Meter, Manual, Paper Box |