Wired PIR Infrared Sensor

Technology parameter:

Main feature:

Compact and complete, easy to use Pyroelectric Infrared (PIR) Sensor Module for human body detection. Incorporating a Fresnel lens and motion detection circuit, suitable for a wide range of supply voltages and with low current drain. High sensitivity and low noise. Output is a standard TTL active high output signal.

The PIR (Passive Infra-Red) Sensor is a pyroelectric device that detects motion by measuring changes in the infrared levels emitted by surrounding objects. This motion can be detected by checking for a high signal on a single I/O pin.
Module provides an optimized circuit that will detect motion up to 6 meters away and can be used in burglar alarms and access control systems.

The Output can drive small DC loads (up to 50mA) like a bell, buzzer, siren, relay, opto-coupler (e.g. PC817, MOC3021), etc.

The PIR sensor and Fresnel lens are fitted onto the PCB. This enables the board to be mounted inside a case with the detecting lens protruding outwards, whilst still allowing easy access to the controls inside the case.

Features