Main Features
Durable Material: Made of durable and strong metal material with red anti-rust paint on the surface. It can effectively prevent rust and prolong its service life while bringing obvious warning effect. The bright red appearance makes it easier for you to find it.
Easy Installation: Fixed base installation. The alarm need to be controled by sensor and switch.The correct connecting way is as below: Sensor–Switch–Siren.
Excellent Performance: The speed of the motor is up to 1000 rpm. The sensitive trigger brings excellent alarm performance.
Loud Voice: The alarm produces sound through motor driving the wind screw type siren, so it sounds like a electric drill. And the decibel can can reach 114dB.
Application: Designed with 2 wires. Suitable for residential building, office, factory, schools, shops, hotel, factory, public places, etc.

Product Specifications
Product Name: Mini Motor Siren.
Color: Red.
Material: Metal.
Model: MS-190.
Rated Voltage: DC 12V.
Decibel: 114dB.
Rotating Speed: 1000 rpm.
Overall Size: 102mm*75mm*86mm/ 4″ * 2.95″ * 3.39″(L*W*H).
Package Content: 1 Pcs.

NOTE
1. The alarm motor cannot work for long time,the normal alarm time is about 3 minutes. Overtime using will cause the motor overheat and burn.
2. The decibel is 114db which cannot adjust.
3. The siren will stop working after power off,please check whether the sensor connected switch.
4. The alarm produces sound through motor driving the wind screw type siren,so it sounds like a electric drill.