This module has two main functions. The first function is analog signal output through an operational amplifier, suitable for A/D conversion. The second function is a switch signal that allows the current limit value to be set in advance. When the actual current reaches the preset value, the switch signal changes from low level to high level, and the LED indicator lights up. Easy to use. - Power supply voltage: 3-5V (5V recommended) - Power current: 3.5mA - Operating temperature: -20°C to 125°C - Isolation voltage: 1.5kV - Detection current range: -100A to 100A - Linearity: 20mV/A - Current limit range: 1.5A to 100A - Board size: 30mm x 37mm with 4 M3 mounting holes Specification: WCS1800 Color: As shown Material: Plastic + metal Package Contents: 1 x Module Note: The package includes only the items listed above. Other products are not included. Light reflection and display differences may cause slight variations in color between the image and the actual item. Measurement error allowed: +/- 1-3cm.