Wireless Indoor & Outdoor Pool Thermometer (2xAA + 2xAAA)
Please refer to: http://dx.com/p/126142 - Plastic case material - Frequency: 433MHz - Operation range: 90m - Receiver with 2.8" LCD display - Can display indoor temperature & outdoor pool temperature - Temperature range: -40 ~ +60'C (water) / 0~50'C (indoor) - 'C / 'F selectable - Functions: time clock / calendar / alarm clock - 12/24h mode selectable - 3 receiving channels - Receiver uses 2 x AAA batteries (included) - Transmitter with 1.3" LCD display - Transmitter uses 2 x AA batteries (included) - Comes with English manual