Feature 1 Speed Regulator Board: This is an all electronic device that controls engine speed for fast, accurate responses to quick load changes. 2 Aluminum Alloy Material: The aluminum alloy shell has good scratch resistance, no rust and damage, and has a long service life. 3 Weather Resistance: The speed control board can work in the environment of minus 40 , and it can also operate in the high temperature environment of 85 , and can be used in a variety of bad weather. 4 Exquisite Appearance:The speed control board is exquisite in workmanship, with a square appearance and easy installation. 5 Stable Performance: The performance of this speed control plate is relatively stable, not easy to fluctuate, and can ensure the working performance of your engine for a long time.Item Type: Engine Speed Control BoardMaterial: Aluminum alloyModel: ESD5131working Environment:Working Temperature: -40-+85Working Humidity: Maximum 95%Vibration: 20-100HZInput Power:Power Supply Voltage: 12V, 24VDCGround Limit: Negative ground (body)Power Consumption: 50mAActuator Continuous Current: Minimum 2.5A, maximum 10ASpeed Sensor Signal: 0.5-50RMS Package List1 x Engine Speed Control Board1 x InstructionNoteThe above performance parameters are measured at the operating frequency of 4000Hz