Attributes

Brand	-
Category	Robotics / STEM Teaching Tools / Sensors
Origin	-
Model Number	RP500B
Compatible Models	RE200B, D203S
Sensor Type	Pyroelectric Infrared (PIR)
Detection Wavelength	7 - 14 µm
Field of View	100° Horizontal
Operating Temperature	-20°C to +60°C
Package Type	TO-5 Metal Can
Pin Configuration	3-Pin Standard
Application	Human Body Induction, Security Systems
Warranty	1 Year Manufacturer Warranty

6 reviews

Anonymous

Mar 30, 2026

Rating: 5/5

Reliable for Arduino projects

Used this for a home automation project with an Arduino. The signal output is clean and consistent. Much better reliability than the generic unbranded sensors I tried previously.

Anonymous

Mar 24, 2026

Rating: 5/5

Exact match for D203S modules

If you have a D203S module that has failed, this is the exact component you need. No modification required. Detection angle is wide and covers my hallway perfectly.

Anonymous

Mar 22, 2026

Rating: 5/5

Perfect replacement for my old security light

My outdoor motion sensor light stopped working, and I suspected the PIR element. This RP500B fit perfectly as a direct replacement for the RE200B. Soldering was straightforward, and the detection range is excellent.

Anonymous

Mar 20, 2026

Rating: 4/5

Works well, sensitive adjustment needed

The sensor works great once calibrated. It was a bit too sensitive out of the box, triggering on small pets, but after adjusting the potentiometer on the module, it only detects humans now. Good value.

Anonymous

Mar 08, 2026

Rating: 5/5

Fast shipping and genuine part

Needed these urgently for a repair job. Arrived quickly and packaging was secure. The sensor responded immediately upon installation. Highly recommend for professional repairs.

Anonymous

Mar 06, 2026

Rating: 3/5

Good sensor, tricky pins

The sensor itself performs well, but the pins were slightly bent upon arrival. I had to carefully straighten them before soldering. Functionality is fine now, just be careful during unpacking.

5 FAQ

Q: What voltage does the sensor element itself operate at?

A: The sensor element is passive; however, the module it is soldered into typically operates between 4.5V and 20V DC. Please refer to your specific circuit board requirements for voltage limits.

Q: Can this detect motion through glass windows?

A: No, pyroelectric infrared sensors cannot detect thermal radiation through standard glass windows as glass blocks IR wavelengths. The sensor requires a direct line of sight to the heat source.

Q: Is this sensor compatible with the HC-SR501 module?

A: Yes, the RP500B is generally compatible with the HC-SR501 module as it uses a standard TO-5 package and pinout similar to the RE200B originally found in those modules.

Q: Does this come with a Fresnel lens included?

A: No, this listing is for the pyroelectric infrared sensor element only. The white plastic Fresnel lens is not included and must be sourced from your existing module or purchased separately.

Q: What is the maximum detection distance for this sensor?

A: The detection distance depends on the lens used in your specific module, but typically with a standard Fresnel lens, this sensor can detect human movement up to 7 meters away.

Explore your interests

STC32G12K128 STC8H8K64U Microcontroller Small System Core Board Development Board Emulator

$16.50

Youxin Electronics_STM32H743IIT6 Core Board System Board Learning Board STM32 Development Board

$118.00

Arduino DUE Development Board 32-bit ARM Controller A000062 Italian Official Original Import with Cable

$299.00

Ultrasonic Sensor HC-SR04 Ultrasonic Distance Measuring Module Bracket US015-025-026-100

$3.16

Serial SHT20 Chip Temperature and Humidity Sensor Test, SHT30 Chip Measurement and Monitoring Module by Viter Intelligence

$11.00

High-Speed Yabo Smart Raspberry Pi 4B Motherboard Development Board Accessories RaspberryPi 2G/4G/8G RAM Py

$494.30

Magnetic Circular Counting Chips, Two-Sided Flip Coins for Elementary Math, Kindergarten Early Education, Ten-Frame Matrix, Addition/Subtraction within 10 & 20, Teaching Tools

$11.90

3-Wire/4-Wire Flame Sensor Module, Fire Source Detection with IR Receiver, Flame Detection and Alarm

$1.08

SANSI White Label Class A Glass Graduated Cylinder C18 Micro-Precision Demulsification Cylinder with Scale Measurement Includes Certificate Ground Joint Stopper Hexagonal Bottom Borosilicate Glass Lab Equipment

$3.68

EV2400 Battery Unlock Fuel Gauge Programmer MSP430 HPA500 Evaluation Module Interface Board SMBus

$323.00

Cube Three-View Teaching Aid with Grid - 3D Geometry Observation Tool for Grades 4-5 Math (2cm Cubic Blocks Set)

$15.10

OrangePi Orange Pi Zero3 Zero 3 Development Board Allwinner H618 Orange Pi

$228.00

Digital 38KHz Infrared Receiver Transmitter Head Sensor Module Electronic Building Blocks Robot Infrared Communication Remote Control

$2.29

12V Stable Version Light-Control Switch No-Light Sensing with Extension Cable Photoresistor Plus Relay Module

$49.20

STM32 Smart Car 51 Microcontroller Arduino Obstacle Avoidance Chassis Kit Mecanum Wheel Robot Car

$40.80

Tech Small Production Small Invention DIY Piano Electronic Keyboard Real Playable Science Small Handmade DIY Materials

$33.00

HX711 Pressure Sensor Module Electronic Scale Bracket Weighing DIY Scale Pan Tray Set 5/10/40kg200

$3.28

Transparent 3D Geometric Model Perspective Decomposition Graphic Teaching Aid, Complete Set for Elementary Grades 1-6 Math

$6.80

Thin Film Pressure Sensor Display, USB Rechargeable Flexible Resistive Pressure Digital Display Module, Wide Range Wireless

$20.00

E18-D80NK Infrared Photoelectric Switch Diffuse Reflection Obstacle Avoidance Sensor Module 3-80CM

$12.60

LAN8720 Module Network Module Ethernet Transceiver RMII Interface Development Board Xinwei Electronics

$7.85

STC15W408AS Core Board Minimum System Board 51 Microcontroller Development Board TTSOP20 Learning Board

$18.47

New Version MEGA2560 R3 Development Board, Improved MEGA2560 R3 with Sensor Expansion Board

$13.68

Gradient Visual Illusion Kit: Electric Rotating Assembly Toy for Maker DIY, Paintable Handmade Model

$8.72

51/AVR Microcontroller Core Development Board STC89C52RC/51MCU Experiment Board/ATMEGA32 Learning Board

$37.90

[Trial Pack] Xianlang Complete Cat Treat Sticks Meal Packs Main Course Cans Freeze-Dried Cat Food Sample Snacks Gift Set

$15.00

5A Range Current Transformer Module Voltage Sensor Single-Phase AC Active Output Current Transmitter

$5.06

Foldable Clothes Drying Rack Floor Standing Home Balcony Bedroom Hanging Clothes Quilt Drying Artifact Outdoor Cooling Rod Indoor Drying Rack

$47.10

Hi-Link 24G Millimeter Wave Radar Human Presence Sensing Module Smart Sensor Non-Contact LD2410C

$9.90

RV1103 Miniature Linux Development Board: RISC-V Vision and AI with Ethernet Port

$53.10

For Arduino Development Board R3 Mainboard Microcontroller Module Kit Programming Learning Board Sensor Suite

$78.00

Xuefen Geometry Stamping and Tracing Set for Grades 1-2, 3D and 2D Ink Pads, Math Learning Tools, Cube and Cuboid Models

$4.51

Rubber Tire Toy 4WD Smart Car Wheels Car Model Robot Accessories (Suitable for 2mm Axle)

$0.50

AHT10 High-Precision Digital Temperature and Humidity Sensor Measurement Module I2C Communication Replaces sht20

$7.88

Digital 38KHz Infrared Receiver/Transmitter Head Sensor Module for Electronic Building Blocks Robots, Infrared Communication Remote Control

$2.80

51 MCU Minimum System STC89C52 DIP40 Through-Hole Smart Car Main Control Board Learning Experiment

$19.80

Outdoor Adventure Kids' Insect Observation Box with Magnifying Glass, Boys & Girls Toy for Exploration, Butterfly Catching and Fish Scooping Tools

$7.80

MPU-9255 9-Axis Attitude 3-Axis Electronic Compass Accelerometer Gyroscope Magnetic Field Sensor Module

$13.42

Freeze-Dried Chicken Treats for Dogs: Nutritious Weight-Gain Breast Meat Chunks for Puppies – Teeth Cleaning, Grain Mixing, Universal Use

$3.90

Ningbo Keli SQB Cantilever Beam Weighing Module Sensor 100kg 500kg 1t 2t 3 Ton Small Floor Scale Inductor

$48.00