Check the listing for details. PowerHobby BMA-01 Brushless Motor Analyzer (Sensored & Sensorless) PHBMA01. Condition: New. Listed at 99.99 USD. This motor analyzer is a precision electronic device that is specially designed for measuring the KV value, RPM, current draw, motor timing, vibration noise level, and function of hall effect sensors of a brushless motor. It comes with a 2X16 character LCD that is able to display real-time values of either sensored or sensorless brushless motors. KV / VOLT / RPM / AMP: KV (RPM per Volt) Shows the rotor RPM/Volt at a certain throttle power level. U (VOLT) Shows the input voltage to the motor checker. RPM (Revolution Per Minutes) Shows the rotor revolution at a certain throttle power level. I (AMP) Shows the current drawn by the motor at a certain throttle power level. MOTOR TIMING - Physical end bell timing, usually between 0 and 70 degrees, requires tools to rotate the sensor board. NOISE LEVEL - Poor assembly, inferior bearings, or unbalanced rotors can generate a vibration. This vibration is adverse to the performance of the motor. By measuring this, you can select the "quietest" motor. Phase A, B, and C Sensor Timing: Shows the actual timing of all three sensor elements Specs: Net Weight: 282 grams (Without Cables) Input Voltage: 7.4-8.4V (Suggested to Use 7.4V 2S 1P Lipo Battery) LCD Display Screen: Blue Backlight Background, White Text, 16 Characters x2 Lines KV Value Accuracy: +/- 3% Motor Timing Accuracy: +/- 4% Motor Timing Range: 0-70 deg Noise Level Measurement Range: 60dB - 120dB Supported Motor: Sensored or Sensorless Brushless Motors (2 to 36 Poles) Size Length: 80.6mm Width: 136.5mm Height: 24.5mm Includes: (1) Brushless Motor Analyzer (3) Motor Cables (1) Motor Sensor Cable (1) DC Input Power Cable w/Banana Connector (1) DC Input Power Cable w/Tamiya Connector (1) Instruction Manual