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

Wireless Motion Sensor Doorbell -Indoor Motion Detector Alarm, Door Chime for Business/Store/Office Entrance, Entry Alert Bell with Buzzer, USB/Battery Powered (2 Receiver + 1 Motion Sensor)

$31.99

Wireless Driveway Alarm 1800 Feet Long Range Motion Sensor Alert System Driveway Detector for Home with 1800mAh Rechargeable Battery (1&2-Brown)

-15% $50.99

Upgraded Motion Sensor Alarm Indoor Motion Sensor Chime with Remote Control 120dB 4 Volume Levels Motion Detector Alarm for Home Shop Store (2 Motion Detector, 2 Remote Control)

-5% $37.99

WiFi Motion Sensor, Smart Motion Detector for Home Security, Wireless Motion Sensor App Remote Monitor, Voice Command Compatible with Alexa. 1 Pack

-7% $11.99

Onforu Motion Sensor, Dusk to Dawn Detector, Timer, Adjustable Detection Distance, 180 Degree Detection Range, Replacement Motion Security Flood Lights Sensor (Black)

-20% $15.99

135dB Loud Sound Mini Motion Sensor Alarm for Garage, Shed. Remote Control Portable Cordless Battery Operated Keypad Alert for Travel, Camping. Indoor USB Power Motion Detector Siren for Home Security

-23% $19.99

Motion Sensor Doorbell Entry Alert, Shop Store Office Business Home Security Welcome Buzzer Monitor Alarm, Wireless Door Chime with 2 Sensor & 1 Receiver

-50% $14.99

Power Gear Motion-Sensing Driveway Alarm, Battery Operated, Flashing LED Light, Wireless, Easy to Install, Home Protection, Indoor or Outdoor Security, Up to 25ft. Detection Range, 36014-S1

$21.99

HEIMAN Motion Sensor, Matter Over Thread,Smart Motion Detector with Light Sensor, Requires Thread Border Router,Compatible with Apple HomeKit, Google Home, Alexa and SmartThings

-38% $29.99

Wireless PIR Motion Sensor Detector Home Store Welcome Buzzer Monitor Commercial Door Entry Security Alert for Business Mailbox, Caregiver Reminder for Elderly (1 Sensor & 2 Doorbell)

-7% $26.03

Qualirey Solar Outdoor Motion Sensor Alarm 2 x 129db Loud Noise Maker 13 Sound Detector Strobe Light, 4 Modes Animal Deterrent Dog Barking Alarm Mount on Ground or Fence for Garden Yard(4 Pack)

$56.99

WWZMDiB 2Pcs HC-SR501 PIR Motion Sensor Module for Arduino Raspberry Pi Toys, Lamps, Electronic Equipment

$6.99

Solar Outdoor Motion Sensor Alarm, 360° Motion Detector Alarm with 130db Security Siren Support Recording, 13 Sounds Dual Modes Solar Alarm Strobe Light for Home & Farm

-28% $39.99

Comidox LED Outdoor 110-220V Infrared PIR Motion Sensor Detector Wall Light Switch 180°1pc

$5.79

JMT HLK-LD2450 24GHz Trajectory Sensor Kit ISM Smart Home Human Movement Tracking Ra·DAR Induction Module Distance Angle Speed Measurement (5Pcs)

$47.98

XYszpcgs XING YU PIR Motion Sensor Activated Sound Player Speaker with USB Cable, Download Your own MP3 Audio Files to Play Speech, Music or Sound Effects (Black)

-6% $20.67

Wireless Driveway Alarm 1800 Feet Long Range Motion Sensor Alert System Driveway Detector for Home with 1800mAh Rechargeable Battery (1&1-Brown)

-15% $42.49

BESTOONE Motion Sensor Alarm, Long Range Wireless Driveway Alarm, Indoor Home Security System Electric Doorbells, 2 Motion Detector and 1 Alarm, 38 Chime Tunes, LED Indicator

$27.99

Onforu Motion Sensor, Dusk to Dawn Detector, Timer, Adjustable Detection Distance, 180 Degree Detection Range, Replacement Motion Security Flood Lights Sensor (White)

-20% $15.99

Honeywell AURORA Pir Motion Sensor

-25% $19.98

Solar Outdoor Motion Sensor Alarm, 130db Loud Dog Barking Alarm with Gunshot, Support Recording & Volume Control, 3 Modes Motion Activated Strobe Light Solar Security Alarm for Home, Farm

-16% $29.99

Motion Sensor Door Chime for Business,Store Welcome Buzzer Monitor, Commercial Door Entry Alert,Motion Detector Alarm,Outdoor Doorbell Kit Wireless Driveway Alert,Doorbell Chime for Business/Home

-12% $21.99

Oiyagai 2pcs SR602 Motion Sensor Detector Module Pyroelectric Infrared Sensory Switch

-16% $7.50

Cruxer Motion Sensor Alarm When Enter Sensing Range Wireless Detector Chime Alarms Doorbell use for Home Office Business Store Door Bell, also for Elderly Kids Upgraded Split Type Caregiver Pager

-9% $28.99