Founded in 1998, China Tianwai Safety Equipment Co., Ltd. is a comprehensive burglar alarm, burglary alarm, burglar alarm system, home burglar alarm, wireless burglar alarm manufacturer and wholesaler of safty equipment and safety industry. With the integrity of research, development, quality production, CAD technical system and high propagation sale, our products are widely used in the fire fighting, road safety, lighting, public secuity, family, automobile safety, petroleum, metallurgy and construction and other fields. The products passed certification of ISO9000 quality system and CCC certification. Each custom burglar alarms, burglary alarms product has passed the strict quality test to guarantee credible product functions before being put into markets, and the return rate of our products is below 1%.

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Burglar Alarm Security Camera System, Camera & Photo, Electronics & Computer
Inconspicuous: Only 2.5" long. Easily mounted by adhesive tape to window or door, no tools required. 4 alarms per pack.
Loud 90 dB alarm scare off potential intruders - Magnetic sensor switch detects entry protecting you home or office whether you're in or out. Chime or alarm mode. Residential use: Protects exterior door, sliding glass door, gun and medicine cabinets. Commercial use: Protects showcases and cash registers.Operated by three 1.5VLR44 button cell batteries. At only 2 1/2 inches long this economical alarm inconspicuously protects your home from intruders. This unit uses a magnetic sensor to detect the opening of a protected door or window. A 90 dB alarm will then alert you to an attempted entry and scare off potential intruders. The owner may open the window or other protected object, without setting off the alarm by switching the on/off switch to the off position. May also be used within the home to alert parents to children opening a gun or medicine cabinet or used to protect exterior doors, particularly those hard to protect sliding glass doors. Commercial uses include showcases and cash registers.

Transforms an ordinary doorknob into a highly sensitive burglar alarm
No installation required: simply hang on the inside doorknob of any wooden door
Can also be used as a personal alarm
Note: This alarm will only work on wooden doors. It also does not work on plastic door knobs.
Size: 4 1/4" x 2" x 1"
This 2-in-1 security alarm transforms an ordinary doorknob into a highly sensitive burglar alarm. In order to gain easy access to your home, burglars will first try your doors to see if they are unlocked. If a burglar touches your outside doorknob, this device will instantly emit a 120dB alarm to scare him away and alert you to the attempted entry. Unlike other alarms, the burglar will be stopped before he enters your home. Even if he is wearing gloves, the alarm will sound as soon as the outside doorknob is touched. No installation required: simply hang on the inside doorknob of any wooden door. (Note: This alarm will only work on wooden doors. It also does not work on plastic door knobs.) This alarm can also be used as a personal alarm. Place the included metal chain around your wrist and plug it into the alarm and place the alarm in your hand, pocket or handbag. As soon as the metal chain is pulled out the alarm sound until the metal chain is plugged back in the unit. Requires one 9 volt battery (not included.) Alarm measures 4 1/4" x 2" x 1".

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