TX-3FS :
 Water Detector,
 w/Transmitter

 The Water Detector is
 composed of Radio Transmitter
 TX-3FS and Detector FD.

 Specification:

 Power:
 Two AAA alkaline batteries.

 Current Drain:
 3.5uA @standby,
 20mA @activation.

 Estimated Battery Life:
 5 years.