Plastic case material

2) Frequency: 433MHz

3) Operation range: 100m

4) Waterproof: 30m depth

5) Perpetual calendar

6) Alarm with snooze

7) Water temperature range: -40°C to +60°C

8) Indoor temperature range: 0°C to +50°C

9) 433MHz wireless receives 3 channels water temperature

10) Max/min record indoor and water temperature

11) Calendar from jan.1, 2000 to Dec.31 ,2099

12) Transmitter with 1.3" LCD display

-Receiver with 2.8" LCD display

13) Receiver uses 2 x AAA batteries (not included)

-Transmitter uses 2 x AA batteries (not included)

14) 12/24h mode selectable

15) Receiver size: 120x75x20mm

-Transmitter size: 85x85x160mm