Item Type: Motor Speed Controller Model: UX-52 Input Voltage: 220V AC Output Voltage: 220 (V) Speed Adjustment Range: 90-1400 (rpm) Intelligent Button Control System: Yes Soft Stop/Start: Yes Display Mode: Digital display Scope of Application: Microcomputer gear reduction motor Operation Mode: Manual accuracy. Operating Voltage Range: -10%-and10% Power Frequency: 50/60hz -2%-and2% Speed Setting: Continuous Speed Change Rate: 1% Speed Stability Accuracy: 1% Installation Size: Approx. 53 x 81mm / 2.1 x 3.2in Introduction: UX?52 intelligent AC speed governor is suitable for micro?power gear reduction motor motors. The product has a soft start function and an intelligent button control system. The front can be reversed. It saves the old?fashioned way of forward and reverse wiring. It has human nature It features more stable performance, more accurate driving, and can also realize the function of pause and then drive during the transfer process. 1UX?52 intelligent AC speed governor is suitable for micro?power gear reduction motor. 2The product has a soft?start function and an intelligent button control system, which can CW/CCW. 3The function of pause and re?drive can be realized during the transfer process. 4The motor speed controller features more stable performance and more accurate driving. 5The speed adjustment range is 90-1400 (rpm), with intelligent button control system.1 x MotorSpeedController Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.