Features: This sensor provides the RPM of a motor to a Futaba telemetry enabled transmitter Specs: Length: 10 (255mm) Weight: 0.166oz (4.7g) with pickup Voltage: DC 3.7-7.4V Range: 37 to approximately 100,000RPM
Features: Measures receiver battery voltage and the voltage of a second battery or power supply. External Line Range: 0-100V Normal Line Range: 3.5-8.4V Specifications: Length: 870mm Weight: 6g