This meter can test water temperature, deepest can detect four meters below water.
Sender could float above the water and it is UV proof
Receiver has three channels
Water Resistance: Water resistant, but not waterproof
Transmit/receive range up to 100 feet
Operating temperature range 32°F to 122°F
Floating thermometer approximately 3.5″ x 9″
Base station approximately 2.75″ x 4.25″