This is the Hitec HTS-C50 50 Amp Current Sensor. FEATURES: For use with the Hitec HTS-SS RC aircraft telemetry system Two year limited warranty through Hitec beginning at date of purchase INCLUDES: HTS-C50 50 Amp Current Sensor with Wire Lead SPECS: Measurement Range: 0 - 50A Measurement Resolution: 0.1A Wire Length: 9.8" (250mm) jxs 12/27/11 ir/jxs