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OnBuy.com£14.06Visit shop Ultra Slim Door Handle Alarm - Battery Powered Wireless Hanging Wall Mounted Intruder Alarm - Loud 125Db Siren - Police Accredited 5060447642428
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The Defender Ultra Slim Door Handle Alarm is an ideal security solution for homeowners, students in dorms, or frequent travelers seeking an affordable, non-permanent way to protect entry points. Its primary benefit is the combination of a highly sensitive vibration sensor and a piercing 125dB siren that triggers immediately upon unauthorized contact with a door handle. However, users should note that because the device is vibration-based, it is best suited for interior door security or supplemental exterior protection rather than as a primary deadbolt replacement.
| Model Part Number | EL00237 |
|---|---|
| Brand | Defender |
Yes, the adjustable cord is designed to loop securely around both traditional round door knobs and modern lever-style handles.
Yes, the unit comes ready to use with 3 x LR44 batteries already included.
If using the adhesive mount, it may leave minor residue; however, the free-hanging method is completely non-damaging.
Yes, the 125dB siren is designed to be powerful enough to alert people in adjacent rooms or nearby areas.
No, this is a standalone hardware device and does not require any app or Wi-Fi connection to function.
This device is intended for internal use and should not be exposed to direct rain or extreme outdoor weather conditions.
Ensure the device is switched to the 'On' position and check that the battery contact is not obstructed.
Adjust the position of the device to ensure the cord is taut against the handle and check for environmental vibrations like heavy slamming doors nearby.
The LR44 batteries are likely low; replace them with a fresh set of three batteries.
Setup is designed to be user-friendly. To begin, ensure the 3 x LR44 batteries are correctly installed in the battery compartment. For free-hanging use, simply loop the adjustable cord around the door handle and secure the device to the handle shaft. For a more permanent fixture, use the provided adhesive backing to mount the unit directly onto the door surface. To maintain the device, periodically wipe the sensor surface with a dry cloth to prevent dust buildup and test the alarm functionality every few months. If the siren volume begins to sound distorted or significantly lower, replace the LR44 batteries immediately to maintain full security effectiveness.
