Specification: Item Type: Engine Speed Controller Working Voltage: 12/24VDC Output Current: Minimum 0.5A maximum 15A Operating Frequency Range: 600-9500Hz (MPU speed sensor) Idle Frequency Range: 30-85% of operating frequency (adjustable) Sensitivity: When the load is stable, the speed variation range is less than 0.25% Temperature Difference Stability: No more than 0.5% between -40-+85 Remote Speed Adjustment Range (2 Groups): About 5% adjustment range when using 5K potentiometer Speed Rise Time: 3-20 seconds (adjustable) Operating Temperature: -40-+85 Storage Temperature: -40-+85 Relative Humidity: 95% or less Vibration: 3G at 100Hz-2KHz Parameter Adjustment Potentiometer: DROOP: Adjust the rate of speed drop GAIN: Adjust ACT output gain loop INT.: Integral loop stability adjustment RAMP-TIME: Speed rise time SPEED: Speed adjustment IDLE: Idle speed with line DIP Switch SW1: ON 600-1200 Hz SW2: ON 1200-2500 Hz SW3: ON 2500-5000 Hz SW4: ON 5000-9500 Hz Package List: 1 x Engine Speed Controller 1 x User Manual<br> 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.