Aobao 2pcs Motor Speed Controller PWM DC 12V 24V 60V 500W Adjustable Speed R auspowers_batchtwo the ultrasonic reflection intensity is

the ultrasonic reflection intensity is different and the detection distance is also different

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Aobao 2pcs Motor Speed Controller PWM DC 12V 24V 60V 500W Adjustable Speed R auspowers_batchtwo the ultrasonic reflection intensity isAobao 2pcs Motor Speed Controller PWM DC 12V 24V 60V 500W Adjustable Speed R 2pcs motor speed controller pwm dc 12V 24V 60V 500W adjustable speed regulator with stepless variable rotary switch pwm signal generator driver module Specification: Product name: ZK BMG High Power PWM DC Motor Speed Controller. Product Number: ZK BMG Working Voltage: DC 9V 60V Rated Current: 12A Peak Current: 20A Power: 500W(Max) Work Frequency: 1KHz 99KHz(Default 20KHz)