Multi-channel Thermo-Hygrometer

This unit has three channels for thermometer display.
Main unit and remote sensor
 
Main Unit:
1. 3-line LCD and with indoor and outdoor temperature
   display separately.
2. 433MHz transmission range to 30 meters.
3. Max / Min. temperature trend indicator
4. Temperature high/low Alarm
5. Temperature Measuring Range: -10 ?  to 50 ?
  (14? to 122?)
6. Use 2pcs AA batteries.
7. ? / ? display conversion
8. Dimension: 180×82×22mm (L×W×D)

Remote Temperature Sensor
1. 2-line LCD and with indoor and outdoor temperature
  display separately.
2. 433MHz transmission range to 30 meters.
3. Temperature Measuring Range: -20 ?  to 60 ?
  (-4? to 140?)
4. ? / ? display conversion
5. Dimension: 92 x 60 x 20mm