Module features: Jog type: the initial state is low high touch do not touch is low; Low power consumption; Operating voltage: DC 2.5~5.5V; Touch surface can be used as positive and negative can replace the traditional touch of a button; 4 x M2 screw holes easy for operation; Specifications: Power voltage VCC: 2.0~5.5V Output High VOH: 0.8V Output LOW VOL: 0.3V Output Pin Sink Current (@ VCC = 3V VOL = 0.6V): 8mA Output pin pull-up current (@ VCC = 3V VOH = 2.4V):-4mA Response time (low power mode): 220mS Response Time (Fast mode): 60mS Control Interface: three pins (GND VCC SIG) GND to ground VCC is power supply SIG digital signal output pin; Power Indicator: Green LED power on the right is shiny; Touch area: Similar to a fingerprint icon inside the area you can touch the trigger finger. Positioning holes : 4 X M2 screws positioning hole diameter is 2.2mm the positioning of the module is easy to install to achieve inter- module combination; A product for Arduino that works with official Arduino boards.