Specification: Origin: Mainland China Type: Module Condition: New Supply Voltage: 2-5.5 V Product weight: 2g Product size: 24.2*23.8mm/0.95*0.94inch Control interface: a total of 3 pins (GND, VCC, SIG), GND is the ground, VCC is the power supply, and SIG is the digital signal output pin; Power indicator light: green LED, it will light up when the power is correct; Touch area: the inner area of the icon similar to a fingerprint, which can be triggered by a light touch of a finger. Positioning holes: 4 M2 screw positioning holes, the hole diameter is 2.2mm, which makes the module easy to install and position, and realizes the combination between modules Note: Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you! Please allow 1-2cm measuring deviation due to manual measurement. Included: 1Pc *Touch Sensor Module