Human Infrared Sensor Module Pyroelectric Sensor Imported ProbeHuman body infrared sensor module Pyroelectric sensor Imported probe1. This motion sensor is a more energy-efficient and environmentally friendly high-quality human body detector module, effective and low heat, with a long service life.2. Smooth operation These are adjustable motion sensors with small useful pots/pots on the board to adjust the on time and sensitivity. They work just fine and don't require a library to run.3. The fully automatic sensing should input high level when someone enters its sensing range, and when someone leaves the sensing range, it will automatically delay and turn off the high level. output low level.Colour: blueSize: 3.1*2.3cmQuantity: 10pcs1.As different measuring methods,it will occur 1-3 cm deviation about the items,please ensure that cm it is okay for you before ordering.2. Because of different monitors and lamplight, the picture may not reflect the actual color of the item, really thank you for your kind understanding3. Only the above package contents, excluding other productsBAZHOU