| Display Indoor temperaturer and humidity,Outdoor temperature; |
| *Record the maximum and minimum temperature and humidity; |
| *Deg C and deg F switch; |
| *Freeze from -1C to +4C; |
| *Temperature measure range: |
| Indoor:-10~+50C(+14~+122F) |
| Outdoor:-50~+70C(-58~+158F) |
| *Humidity measure range:20~99%RH; |
| *Accuracy: +/-1C,+/-5%RH; |
| *Time and alarm |
| *1.5V operate(AAA); |
