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Features: Applied to bath, swimming pool, spa pool such as water temperature measurement. With the record Maximum and minimum indoor temperature and water temperature. 433 MHZ wireless receive 3 channels water temperature. The alarm clock with snooze function. Waterproof and floating transmitter, suitable for both indoor& outdoor swimming pool.Specifications:Calendar: from January 1, 2000 to January31, 2099Water temperature range: - 40 ~ 60 degreesIndoor temperature range: 0 ~ 50 degreesRange of visibility Wireless transmission line (outdoors):100 metersFrequency: 433 MHZUpdate rate: 90 seconds on the remote control and display control bench for 10 secondsAccuracy of measuring range resolution indoor temperature: - 40~ 140 ° FWater temperature: - 58 ~140 ° FPower display console: 2 x AAA 1.5 V alkaline battery (not including)Remote sensors: 2 x AA 1.5 V alkaline battery (not including)Instructions:1. Receiver operating instructions:1.1 normal mode:* Single click "MODE/SET" key to switch for ALARM and the current time* Long press "MODE/SET" button to enter setting MODE* Sheet according to the "MEM" button to check the temperature, the largest minimum value* Press the "MEM" button more than 2 seconds, remove all temperature, history* Single click CH / + button switch display different RF channel data* Long press "CH / +" button to remove the currently displayed data channels, and into the RF receiver* Single click "CF / -" key to switch from the C/F* Single press the "SNOOZE" key backlight lighting for 5 seconds1.2 Time setting mode* Single click "MODE/SET" button to switch the display MODE to the time pattern, switching sequ