This is a Spektrum Telemetry Sensor for use with Spektrum Telemetry systems
The Sentry LiPo/NiMH Digital Voltage Monitor offers you an easy to use DVM with superior battery application over the competition
This is the Futaba BR-2000 Battery Checker/Discharger. Checks NiCd and NiMH receiver batteries and 1 cell Li-Ion batteries (voltage display only).