flashtree Sound Detector SparkFun Audio Sensing Breakout Three Different outputs Audio Presence of Sound Binary Indication Amplitude Analog Representation VCC: 3.5V to 5.5V Ideal Voltage is 5V

Optex iSeries Wireless Outdoor Dual PIR Motion Detector, with Inovonics (VX-402Ri)

5 Pack HC-SR501 Adjustable IR Pyroelectric Infrared PIR Motion Sensor Detector PID Modules for Arduino & Raspberry Pi Projects (Blue)

SparkFun IR Array Breakout - 110 Degree FOV, MLX90640 (Qwiic)

AV Switch Box Composite Selector 8 Port RCA Audio Video 8 in 1 Out to TV Swithcer Adapter for DVD HDTV Converter

BOSCH SECURITY DS9370 Panoramic TriTech Ceiling Mount Detector

HC-SR501 Adjust Pyroelectric IR PIR Infrared Reflective Motion Body Sensor Module Board Human Detection for Arduino DIY

Yiroka Motion Sensor Alarm, Wireless Home Security Driveway Alarm, Motion Sensor Detect Alert (150M/500FT, 58 Chimes, 4 Volume Levels, Night Light), 1 Motion Detector (1 Receiver + 1 Motion Detector)

SING F LTD Recessed Pir Sensor Detector Ceiling Occupancy Motion Light Switch 360 Degree

Non-Slip Silicone Case Cover Anti-Lost Eartips Strap for Wireless Airpods Wireless Headphone Set Accessories

Fox&Summit 2nd Generation WiFi Window Door Sensor with Built-in Chime and Audible Alerts, WiFi Enabled Battery Operated Smart Sensor, Security Door Sensor, No Hub Required [4PK]

JC 433MHz Wireless Door Sensor Burglar Alarm Sensor 5 Pack

52mm Haze UV Filter Lens 52mm Lens Protector for DSLR/SLR/DC/DV Camera Lens Dust-Proof Moisture-Proof Scratch-Proof

HiLetgo 10pcs RE200B SN200B00 PIR Human Infrared Radial Sensor RE200B Dual Pyroelectric Sensor 2.2-15V

Organizer MPU9250 299DOF 9-Axis 9 DOF 16 Bit Gyroscope Acceleration Magnetic Sensor 9-Axis Attitude +Gyro+Accelerator+Compass Magnetic Field Sensor Module IIC/SPI for Arduino GY-9250

TFmini Plus Lidar Module, 0.1-12m Indoors Measurement Range, Low Cost Waterproof Dustproof Short-Range Distance Sensor, Single-Point Micro UART for Drone Industrial Sensing Robot Smart Home

AS3935 I2C S PI Lightnings Strike Storms Distances Detector Sensor Breakouts Board Ships Fully calibrated

DIYmall HC-SR501 Pir Motion IR Sensor Body Module Infrared for Arduino Raspberry Pi Micro:bit

Wireless Motion Detector for 2gig, Honeywell, and Vivint

Solar Powered Wireless Infrared 4-Beam Motion Detectors

Honeywell RCA902N1004/N Wireless Motion Detector

kwmobile 3X PIR Motion Sensor Security- HC-SR501 Movement Detection Sensor Module for Arduino, Genuino and Raspberry Pi 3.3V Power

24GHz Standard Universal Microwave Motion Sensor Radar Detector for Sliding Door Elevator Opener GOLD

3PCS MR-WB5529 100W 360 Degree Microwave Radar Motion Sensor Switch Body Motion Sensor Induction Switch High Sensitivity Long Distance Motion Detector Switch

Taidacent 100-1800mm UART I2C Output TOF 10120 Laser Distance Module Laser Rangefinder to Measure Distance Laser Detector Sensor

ECO LLC 400KHz 3 Axis Mach3 USB Driver Motion Control Card CNC Interface Breakout Board

HiLetgo 4pcs Ultrasonic Sensor Integrated Transceiver Waterproof Diameter 16MM

Infrared Tracking Sensor Module 4-Channel Infrared Reflection Tracking Sensor Module Smart Car Obstacle Avoidance PCB Set 2-60 CM Detection Distance

12V Car Light Control Switch Photoresistor Relay Module Light Detection Sensor

Wireless Home Security Driveway Alarm Doorbell, Motion Sensor Alert Outdoor Chime Kit with 2 Plug-in Receiver and 1 PIR Motion Sensor Detector Alert for Business Home Office Shop Restaurant

UTC Security Alarm System-DI601 - Outdoor PIR 10/20/30m Selectable

Wireless Driveway Alarm Alert System - RingPoint Waterproof Outdoor Motion Sensor Alarm - Expandable Motion Detector Alarm w/Over 1000-Feet Range, 32 Chimes, 5 Loud Levels, LED Indicators

Jensen - Duplex Jack

Waterproof PIR Motion Activated Audio Player for Outdoor Use

Honeywell DT8050A DUAL TEC Motion Detector with Mirror Optics and Anti-Mask OPEN BOX

Wireless Motion Alert System in black by Chamberlain

HiLetgo 10pcs IR Infrared Obstacle Avoidance Sensor Module for Arduino Smart Car Robot 3-Wire Reflective Photoelectric for Arduino Smart Car Robot

wang tong shop Waterproof 14LED Dual Head Solar Powered Yard Lights PIR Motion Sensor Spotlight

Mini Motion Alarm System With 90dB Siren

Heath Zenith Motion Sensor Carriage Lantern A19 14.5 In. Antique Silver Uses 1 Med Base Bx

WALLER PAA IR Infrared Body Motion Sensor Automatic Light Lamp Control Switch 110V