Features High Quality 5V 1-Channel Relay Module: This module offers high-quality performance with a 5V power supply and 1-channel bistable self-locking relay, ensuring reliable and efficient . Convenient Trigger Control: Easily activate the relay by clicking the trigger port to pull it in and hold, and click again to disconnect, providing convenient and intuitive control. and Long Service Life: Constructed with high-quality materials, this relay module is and has a long service life, ensuring lasting reliability for your applications. High Accuracy and Strong Stability: With high accuracy and strong stability, this relay module is easy to install and use, delivering and reliable performance for various applications. Safe Low Pulse Trigger: The trigger mode is a low pulse trigger, providing a more convenient and safer for your peace of mind. Features: 1、Speed regulator is added smooth and slow start process control, which is easy to use. 2、With parallel machine, idle machine and speed ramp, speed governor can also start fuel control function. 3、Stable and speed controller is entitled with high performance according to strict rule. 4、After many inspections before leaving the factory, speed controller 's quality is guaranteed, you can use it with confidence. 5、Generator accessory is built to strict quality control standards, improved for more durability. Specification: Item Type: Speed controller Power Supply Voltage: 12V and 24V DC battery system Grounding Polarity: Negative Operating Temperature Range: -45 ℃ ~ 85 ℃ Operating Humidity Range: Maximum 95% Storage Temperature: -55 ℃ ~ 90 ℃ Vibration: 20-100 HZ 500mm / esc Technical Specification: Speed Stability: Better than ± 0.25% Speed Range: 1KHz ~ 7.5KHz Thermal Stability: Maximum ± 1% IDLE Adjustment: 160 ± 20Hz ~ 95% of rated speed START FUEL Adjustment: 160 ± 20Hz ~ 70% of rated speed RAMP Time: 1.5 ~ 20Sec 10V Output Current: Maximum 20mA Package List: 1 x Speed Controller 1 x User Manual Package List 1 x Speed Controller 1 x User Manual