Home alarm with motion sensor and siren

Con un foco con sensor de movimiento, un contactor con contacto NO (normalmente abierto), y una sirena, vamos a hacer una alarma casera que suene al detectar

Solar Powered Wireless Independent Infrared Motion Sensor Detector Strobe Siren 120dB Alarm Waterproof PIR Sensor

This compact motion sensor will detect anyone who attempts to enter the protected area. A loud 90 db alarm siren will sound off to scare the intruder away and alert others to pay attention to the motion detected event. It can be fixated on the wall or simply put it on the desk or hand carry it. This motion sensor alarm is powered by AAA batteries or using AC power adapter. This device can also be used as a door window entrance alert chime for retail stores, office or warehouse area.

Portable Motion Sensor Alarm and Entrance Alert Chime with 90dB Siren Sound

✅ LONG RANGE CONNECTIION-Working Range up to 328 feet (100 meters) between receiver and transmitter allowing you to place it a good distance from the

Motion Sensor Alarm, Wireless Driveway Alarm, Home Security Business Detect Alert with 4 Sensor and 1 Receiver,38 Chime Tunes - LED Indicators for

【Easy to install & Waterproof】Just find a place where the solar panel can absorb enough sunlight, and fix the lamp on it with the provided screws, no

Outdoor Alarm Siren with Motion Detector Solar Alarm Light with Remote Controller 129db Sound Security Siren IP65 Waterproof 24 Hours & Night Mode for

KERUI Wireless Local Speaker Horn Home Siren Alarm Burglar Security System Infrared Motion Detector Siren Kit - AliExpress

YASONG Motion Sensor Alarm Siren Waterproof Anti-theft Home Alarm Syst – YASONG Alarm

YASONG Motion Sensor Alarm Siren Waterproof Anti-theft Home Alarm Syst – YASONG Alarm

Simple Home Smart Wi-Fi Alarm Siren

Portable Alarm System With PIR Motion Sensor With 90dB Alarm Siren Sound

ABS 【Comprehensive Home Protection】A total of 14 pieces in this wireless house burglar alarm system kits. It includes 10 window/door sensors, 2 remote controllers, 1 WiFi loud speaker, and 1 power plug to protect well for apartment shed hotel garage RV motor home safety ,affordable home security. 【Intelligent Security Management】Our Smart Alarm System operates on a 2.4 GHz WiFi connection and offers remote control through the Tuya App on Android and iOS.

TOWODE Home Security System Wi-Fi (2.4 GHz) Door Alarm System with App Alert DIY Kit, Weatherproof Siren 120 DB Home Alarm System for House Office