Function: 1. High Quality: It is made of high-quality plastic, hard and wear-resistant, resistant to falling and corrosion, and can be used for a long time. 2. High Accuracy: The brushless motor driver has excellent workmanship, excellent performance, high detection accuracy and good detection effect. 3. Portable and lightweight: small size, light weight and easy to carry bring you more convenience and enhance your experience. 4. Stable Performance : Professional manufacturing, craftsmanship and high accuracy help ensure stable performance to meet different needs. 5. Easy operation: The detection method is simple and easy to operate. Can be operated according to the instruction, saving time and labor. Specification: Item Type: Brushless Motor Controller Tester Material: ABS, copper Weight : approx. 197 g / 6.9 oz Battery: Built-in 9V x 1,200mAh battery Applicable voltage: 24V 36V 48V 60V 72V Working temperature: -20 -50 Relative temperature: 80 Package List: 1 x brushless motor controller tester 1 x user manual