Non-contact Capacitive Touch Sensor Module DC 3V-30V 2A Non-contact Capacitive Touch Sensor Module DC 3V-30V 2A Non-contact Capacitive Touch Sensor Module DC 3V-30V 2A: This touch sensor module features a touch-sensing surface on the back of the circuit board. It boasts high sensitivity, a maximum sensing distance of 8mm, an operating voltage range of 3V-30V, and a maximum operating current of 2A. Suitable for LED light control, it supports external relays, switches, etc., and features a low dropout design, with output voltage equal to input voltage. Compact size, making it easy to attach to various surfaces such as glass, plastic, rubber, acrylic, and ceramic. The front of the circuit board contains electronic components, while the back is the touch-sensing surface. The maximum sensing distance is 8mm. Card size: Round, 2.0 cm in diameter Operating voltage: DC 3V-30V Operating current: 0-2A Standby current is within 5V, approximately 2 microamps Operating mode: Supports lock/jog (default mode is lock, press once to power on/press again to switch to standby) Power mode: Supports power on/standby (default mode is power on/power off) When powered on, the output voltage is equal to the power supply voltage; when in standby, the output voltage is 0V The LED indicator light is on when powered on; the LED indicator light is off when in standby.