| Model: | CH-909 |
| Key functions: | Low battery alert/ Mock weather station/ Calendar/ Date/ Week/ Mock phase/ Comfort level/ Temperature/ Humidity |
| Temperature Range: | -10°C ~+50°C ( +14°F ~ +122°F ) |
| Humidity Range: | 10% ~ 99% |
| Resolution: | temperature 1°C / 1°F; humidity 1%RH |
| Humidity Error: | ±3% at 25°C 60%; others ± 5% RH |
| Temperature Error: | ±1°C(±1.8°F) |
| Temperature Measuring Period: | 10s |
| Power supply: | 1.5V AAA Battery*1 |
| Material: | Environmentally-friendly ABS+HD digital LCD display |
| Appearance Size: | 93.5*114.5*22mm |
| WindowSize: | 76*63mm |
| N.W.: | 127g ( include battery ) |
| Color: | Black/ White |
