Tanotis 2PCS HC-SR505 Mini Infrared PIR Motion Sensor Precise Infrared Detector Module Shoe Mounts Eight different channels let you

Eight different channels let you trigger only chosen specific receivers

UART available

2k pull-up resistors have been included on each output as well

1N4004 Reverse Protection Diode

Perfect for all of your 2-D & 3-D seismic exploration needs with bandwidth from 10 Hz up to 240 Hz

Tanotis 2PCS HC-SR505 Mini Infrared PIR Motion Sensor Precise Infrared Detector Module Shoe Mounts Eight different channels let you2PCS HC SR505 Mini Infrared PIR Motion Sensor Precise Infrared Detector Module Product Overview: HC SR505 small body sensing module is based on infrared technology, automatic control products, high sensitivity, high reliability, ultra small, ultra low voltage operation mode. Widely used in various auto sensing of electrical equipment, especially battery powered automatic control products. Technical parameters: Operating Voltage Range: DC4. 5 20V