This is Vibration Activated 110dB Bicycle Anti-Theft Security Alarm with Password Keypad. It is made of high quality and durable material for long time use. Good choice for you.
Features
• 4 digital code, only the user can unlock
• Adopt micro-computer technique, have high-middle-lower sensitivity choose
• Low power consumption to allow the battery a long life
• Protect the bike lock from destroyed and prevent the behavior of moving the bicycles by the thief
• Easy to install
Specifications
Powered by 1 x 6F22 9V Battery (Not included)
Material Plastic
Color Black
Dimensions 3.86" x 2.36" x 1.42" / 10 x 6 x 3.6cm
Weight 101 g / 3.56 oz
Package Includes
• 1 x Bicycle Alarm
• 4 x Screw
• 1 x Use Manual
Extra Info
• 1. Default code "ABCA"
• 2. Code change. when the unit not work Press the "A" for 3 seconds and you will hear a short "beep" sound, input old code, you will hear a 2 beeps sound if correct. then you should input your 4 digital new code not later than 5 seconds then you will hear 2 beeps if success. Neight you input the wrong old code or failed to change the code you will hear a long "beep". When you romove the battery, the code will revert back to the history (ABCA)
• 3. The key pad will be locked for minutes if you input the wrong code 4 times in succession, and will resume 3 minutes later.
• 4. To set the alarm: Press B for 2 seconds, you will hear 1 beep if successful and it will arm 5 seconds after the beep.
• 5. To disam the alarm, jusr enter you 4 digital code and you will hear 2 beeps to confirm that the code has been accept 6....7...8...(If you want to know more, please see the Use Instruction.)