Magnetic Door Switch RC-33 NC Recessed Wired Security Window Door Contact Sen…
Magnetic Door Switch ,NORMALLY CLOSED When the switch is close to the magnet, the circuit is conductive(light on); when the switch is separated from the magnet, the circuit is not conductive(light off).
110dB Siren Alarm, 4 x 4.2 in Security Horns Sirens, IP65 Waterproof 12V Sire…
Angle Adjustable: The alarm siren horn base of our 12v siren waterproof is fixed by one screw. The angle of the alarm horns can be adjusted up and down, and the security horns & sirens base can be fixed on the wall, table, ground, etc. by screws.
3PCS DC 3-24V 90dB Active Piezo Electronic Buzzer Beep Tone Alarm Ringer Cont…
Response frequency: 3±500Hz.
30W Alarm Siren ,Dual Tone Outdoor Self Contained Electric Security Ring Sire…
Car: car alarm siren, police siren for bike, truck alarm system, car alarm remote case etc. wired alarm system. [How to use alarm siren ]. It can be installed indoors or outdoors. Our alarm siren is a great addition to any compatible security alarm system.
30W Alarm Siren ,Dual Tone Outdoor Self Contained Electric Security Ring Siren w
KLLsmDesign Alarm Dual Tone Wired Horn Siren with Bracket. Effectively crushed the thief. It is also very suitable for supermarket construction sites and other occasions. Compatible Devices Motion Detector.