what is a passive alarm

Passive car alarm system and Transponder Immobilizer system car engine start stop passive keyless entry china factory Product Overviews: KaiMiao 1000P...

INDOOR DUAL PASSIVE INFRARED DETECTOR DM-360 is a completely of new product of dual passive infrared detector which can provide high quality and safet...

3.3-5V Electronic Passive Alarm Module Buzzer Sensor Module 3 Pin Product Description 1.Buzzer is an integrated structure electronic transducers, DC v...

Passive Piezo Buzzer For Device Alarm and parking alarm system 80dB The piezoelectric passive buzzer generates mechanical deformation of piezoelectric...

3V Electromagnetic Passive Patch Buzzer 5 * 5 * 2MM Patch Passive Electronic Alarm Buzzer 1. SMD PIEZO TOP SOUNDS BUZZER Description The buzzer is an ...

433.92MHz Vehicle Remote Central Locking IP55 Two Master Passive Arming Car Alarm 1. Actuator: 2 master and slaves actuators 2. Rotating head: 360° 3....

Smart Home IR Bullet IP Camera support APP Waterproof Specification Model Name VS-503 Image Sensor Sensor 1.3MP CMOS Sensor Lens f=3.6mm, F=2.0 Angle ...

Multi Function Spy Bug Camera RF Signal Detector With Alarm Clock 10m Range Decriptions: 1. The SA-SD03 Multi-function Camera Bug and Phone Detector w...

Wireless Fumigation Gas Detector Sound / Light Alarm Type 1000M Measure Range Discription: 1. The measurement range is customized according to custome...

Best Selling Manufacturer And Factory Alcohol Tester Professional Breathalyzer Passive And Active Test The alcohol tester adopt advanced sensor,and ke...

Motion Detection Smart Alarm 720P Solar PIR Sensor Light Camera Features 1.PIR motion detection and record video function 2.720P high resolution video...

Auto-balance bridge technology Component Parameter Test Instruments Features ■ High accuracy:Auto-balance bridge technology, 4-terminal pair ■ High st...

2G GPS Car Tracking Vehicle Car Alarm With Two Way Communication Product Description of Car alarm and Gps Tracker CA02 car alarm gps tracker is Multi-...

Φ12*9mm AC type passive magnetic buzzer with resonant frequency 4000Hz Description: A buzzer can be either AC or DC operated and can be mounted anywhe...

wireless home security alarm system with PIR alarm sensor This product is a high stability wireless passive infrared detector(PIR sensor). It uses adv...

4G GPS Tracker Cut Off Fuel SIM Card SOS Alarm Microphone Voice Listening Free APP You need a professional GPS locator! Accurate positioning, easy ins...

433MHz passive infrared alarm sensor for internet ip cameras systems This product is a high stability wireless passive infrared detector(PIR sensor). ...

Indoor Motion Sensor Activated Detector Alarms with Two Types Power Supplies Design Model:CX20 CX20 human movement detectors,passive infrared sensor p...

Magicar two way car alarm special for Russia Market Model: Scher-Khan Magicar 7 Brand: Magicar Main Features: 1.remote: LCD icon 2.Auto arming 3.auto ...

Technical Parameter Apperance color Peony white working Voltage DC 8V-16V working current static state:10mA,Alarm state:20mA Working temp -20℃～70℃ Ant...