ChunHee Motion Sensor Alarm Outdoor,Motion Detector Alarm Dog Barking,8 Adjustable Sound Siren,120db Loud Noise Maker,Support Recording,Motion Activated Alarm with Remote Control(2 Pack)

Eve Motion (Matter) - Smart Motion Sensor with Light Sensor, IPX3 Water Resistance, Automatic Activation of Lights and Devices, Thread

-22% $34.85

Blue Charm Beacons - Long Range Phy (300m) Water-Resistant BLE iBeacon (BC04P-MultiBeacon) - w/Adjustable Movement Sensor

$21.45

Mimorou Motion Sensor Alarm Wireless Driveway Alarm Indoor Home Motion Detector Long Range Security Alert Monitor System with 6 Sensor and 3 Receiver, 38 Chime Tunes and LED Indicators

-4% $46.99

Solar Outdoor-Indoor Motion Sensor Alarm - Loud noise maker! 13 sound detector strobe light. Perfect for homes, cottages, and farms!

$22.99

TREEWELL 240-Degree Replacement Motion Detector, Adjustable Time & Detection Sensitivity Up to 60 Feet Range, 3 Working Modes Pir Motion Sensor for Security Floodlight, Black, UL Listed

$17.99

CPVAN Home Alarm System, WiFi PIR Motion Sensor Alarm, Wireless DIY Smart Door/Window Alarm for Home Security with Phone APP Alert 9 Pieces-Kit (Indoor PIR Alarm Host, 6 Door Sensors, 2 Remotes),White

-29% $40.99

SierraTeck SmartSound Motion Activated Sound Player, Recordable – Independent Living, Point of Sale Advertising, Door Greeter, Entry Alert - White

-2% $42.98

2 Pack Motion Sensor, 180-Degree Replacement Motion Detector, Adjustable Time & Detection Sensitivity Up to 60 Feet Range, 3 Working Modes Pir Motion Sensor for Security Floodlight, Brown, UL Listed

$23.99

Blue Charm Beacons - Long Range Water-Resistant BLE iBeacon (BC05-MultiBeacon) - w/Adjustable Movement Sensor

$21.45

Shaogax Motion Sensor Alarm System, Wireless Home Security Driveway Alarm Indoor, Motion Detector Alert with 2 Sensor and 1 Receiver -38 Chime Tunes

-7% $24.99

Driveway Alarm- HTZSAFE 1/2Mile Solar Driveway Alarm System- Up to 70FT Wide Sensor Range- Fully Weatherproof Outdoor Motion Sensor&Detector DIY Security Alert System-1 Receiver and 2 Sensors KIT

-9% $59.99

Chtoocy 4 Pack Solar Driveway Alarm Wireless Outside Long Range 3000 ft Weatherproof Solar Outdoor Perimeter Gate Alarm System Moiton Sensor Alert & Detector Driveway Alarm w Rechargeable Battery

-7% $119.99

Coliao 2pcs LD2410C Human Presence Radar Sensor Module LD2410 Millimeter Wave Radar Sensor HLK-LD2410 Sensor Module Non Contact 24GHz ISM Band Serial Port IO Level Output with Dupont Wire

$17.99

Rokonet Risco IrexPlus Request to Exit PIR Motion Sensor with Internal Buzzer and Relay Timer (White)

$65.00

BESTOONE Motion Sensor Alarm, Long Range Wireless Driveway Alarm, Indoor Home Security System Electric Doorbells, 4 Motion Detector and 2 Alarm, 38 Chime Tunes, LED Indicator

$39.99

HTZSAFE Smart Motion Sensor - WiFi Motion Detector-Smart Outdoor Home Security - Weather Resistant - Remote APP Notifications- Compatible With Alexa, Google Home&IFTTT - No Hub Required&No Monthly Fee

-16% $24.99

SpyX Door Alarm - Door Monitor That Detects Motion to Protect Your Stuff & Scare Away Intruders. Motion Sensor Alarm for Kids. New Spy Gear Toy Collection. Flexible Cable Fits Any Knobs!

-25% $14.95

DFROBOT C1001 60GHz mmWave Indoor Fall Detection Sensor for Arduino / ESP32 / Micro:bit (11 Meters)

$40.00

SparkFun Human Presence and Motion Sensor - STHS34PF80 (Qwiic) Breakout Board Dimensions: 1" x 1"

$14.95

WiFi Motion Sensor, Smart Motion Detector for Home Security, Wireless Motion Sensor App Remote Monitor, Voice Command Compatible with Alexa. 2 Pack

-9% $19.99

Adafruit IR Break Beam Sensor - 3mm LEDs [ADA2167]

$3.54

2 Pack Motion Sensor, 180-Degree Replacement Motion Detector, Adjustable Time & Detection Sensitiity Up to 60 Feet Range, 3 Working Modes Pir Motion Sensor for Security Floodlight, White, UL Listed

$25.99

DFROBOT mmWave - C4001 24GHz Human Presence Detection Sensor (25 Meters, UART)

$18.90

Wireless Home Security Driveway Alarm, Enegg Entry Alert, Visitor Door Bell Chime with 2 Plug-in Receiver and 1 PIR Motion Sensor Detector Alert System, Quality Sound and LED, 38 Melodies

-15% $22.09