ขาย [Sun]120 ลูกบิดประตูไร้สายเซนเซอร์แบบสัมผัสรักษาความปลอดภัย ราคาที่ดีที่สุด

Features: -Brand new and high quality. 2.120 db supper loud alarm ringing. -With this alarm installed in your house, office, factory, when the doors and windows are opened by children or the theft, it will alarm you to check for safety. -To stay at the hotel, you can install this alarm on the door and window, it will protect you, upon checking out, take the alarm with you for next-time use. -Requires no special wire. Just hang on the inside door knob, open the switch, the piercing alarm will scare off any unwanted intruders, leaving you and your home well protected. Application: Specifications: Color: Black Net Weight: 55g Cable Length: 10.7cm Size: 9.9(L) x 5.4(W) x 2.5(H)cm Powered by a 9V battery(NOT Included) Package Included: 1 x Touch Door Knob Entry Alarm Security