Product Description

Features:
1.4 digital code, only the user can unlock.
2.Adopt micro-computer technique,have High-Middle-Lower sensitivity choose.
3.Quiver trigged,security and sevsitivity.
4.Low power consumption to allow the battery a long life.
5.Easy to installation and DIY.
 Usage:
1.Default code "ABCA".
2.Code change.When the unit not work;
   Press "A" for 3 seconds and you will hear a short "Di" sound, old code,you will hear a "DiDiDi" sound if correct.Then you should your 4 digital new code not later than 5 seconds,you will hear a "DiDiDi" sound if success.Neight you the wrong old code or failed to change the code,you will hear a long "Di" sound.Then you should repeat the process.
3.If take out the battery exceed *0 seconds,it will go back default code automatic.
4.Default sensivity: Middle.
5.Sensitivity adjust.When the unit not work,press "C" and hold on until you hear(you should loose your hands after you hear each sound):
Di=high sensitivity
DiDi=middle sensitivity
DiDiDi=low sensitivity
6.Set alarm.Press "B" for 3 seconds,you will hear a "Di" sound then the unit will work after 5 seconds delay.
7.Relieve alarm.Input your 4 digital code then you will hear a "DiDiDi" sound if correct.If the wrong code,you will hear a long "Di" sound.