Parallax Inc 555-28027, PIR Sensor Module

Technical Reference
Legislation and Compliance
RoHS Certificate of Compliance
COO (Country of Origin): CN
Product Details

PIR (Passive Infra-Red) sensor module

The PIR (Passive Infra-Red) Sensor is a pyroelectric device that detects motion by measuring changes in the infrared (heat) levels emitted by surrounding objects. When motion is detected the PIR Sensor outputs a high signal on its output pin. This logic signal can be read by a microcontroller or used to drive an external load.

Detect a person up to 10 m away, or up to 5 m in reduced sensitivity mode
Jumper selects normal operation or reduced sensitivity
Supply current up to 12 mA @ +3 V, 23mA @ +5 V
Onboard LEDs light up the lens for fast visual feedback when movement is detected
Mounting holes for 2-56 sized screws
3-pin SIP header ready for breadboard or through-hole projects
Small size makes it easy to conceal
Easy interface to any microcontroller
Power requirement: +3 to +6 Vdc, 130 μA idle, 23 mA active (no load)
Communication: Single-bit high/low output
Dimensions: 35.8 x 25.4 x 20.3 mm
Operating temperature range: 0 to +50°C


The product information found on this page currently pertains to Revision B of this product, which provides many updates and new features from Revision A.

Parallax offer an extensive range of sensor, communication and interface modules for the experimenter working on robotic systems. Most are supplied with extensive documentation making them ideal for use in education. Further information and tutorials are available from the Parallax website:

Attribute Value
Sensor Technology PIR Sensor
Kit Classification Module
225 In stock for FREE next working day delivery
Price Each
£ 11.61
(exc. VAT)
£ 13.93
(inc. VAT)
Per unit
1 - 4
5 - 9
10 +
Related Products
The USB2.0 Hi-Speed to MPSSE SPI Module, VA800A-SPI, ...
The USB2.0 Hi-Speed to MPSSE SPI Module, VA800A-SPI, is a small electronic circuit board, utilising the FTDI FT232H. The 10 pin connector on the module fits directly to the FTDI VM800B and VM800C graphic display modules. This allows direct control of the EVE FT800 devices with an SPI interface from ...
These modules are MCU to USB host controller ...
These modules are MCU to USB host controller development modules for the Vinculum VNC1L device. They are supplied on a PCB designed to fit into 24-pin or 40-pin DIP sockets and provide access to the UART, parallel FIFO and SPI interface pins on the VNC1L device via its AD and ...
Designed to replace an existing DE9 connector, (male ...
Designed to replace an existing DE9 connector, (male or female) RS-232/TTL UART connection with a drop-in USB replacement connection. Miniaturised modules which closely resemble a DE9 connector for PCB mountingUSB mini-B socket connectorThe modules contain a USB-Serial bridge IC and all necessary electronics to convert between USB and RS-232/UART signals. ...
xChips are a rapid electronics development ecosystem to ...
xChips are a rapid electronics development ecosystem to help reduce development time and simplify making custom products as well as aiding learning. Without soldering, wiring, breadboarding, or hardware knowledge you can assemble a circuit in minutes, and concentrate on coding.xChips are compatible with the platform you want to use and ...