HOD HEALTH AND HOME Australia has been operating online and instore for 8 years. All products come with a 1 year warranty, fast shipping and special offers added to our site daily.. Need more than 1? Get a bulk buy discount up to 20% off AFeatures: pool Sensor transmitter 1. -40~60 water temperature monitoring while floating in the water. 2. Temperature unit: /H 3. Frequency:RF433Mhz 4. Transmission Distance: 300 feet in open space 5. Channel for option: CH1 CH2 CH3 6. Power: 2xAA 1.5V Alkaline Battery(Not included) 7. Supports solar power. AWireless Receiver 1. 433MHZ wireless receives 3 channel's water temperature. 2. Max/Min record of indoor and water temperature. 3. Supports setting temperature alarm. Alarm with snooze function. 4. Calendar from Jan 1 2015 to Dec 31 2099. 12/24 hour format. 5. Display with LED Back Light. 6. Main keys on the receiver panel for convenient use. Specifications: Power: 2xAAA Battery(Not included) Water temperature: -40~+60 Indoor temperature: -10~+50 ANote 1. Please read the user manual carefully before using. 2. Battery is not included! You Will Receive: 1 x pool Sensor transmitter 1 x Wireless Receiver 1 x User Manual