PIR Pyroelectric IR Body Motion Movement Sensor HC-SR501 Qty: 1 Suitable for Arduino and Other Microcontrollers UK Based Stock Motion detection module used for detecting movement from the surround infrared heat. The module is capable of sensing movement up to 7M and features a 120° detection angle . Level output: high 3.3V / low 0V Delay time: 5-200S Blockade time: 2.5S (default) Trigger: L (unrepeatable), H (repeat trigger) Working voltage: 5V-20VDC