Sell Door Window Alarm ome Security Wireless Magnetic Sensor Burglar Anti-Theft 130db Alarm best price

Working modes: 1. alarm mode, sound up immediately when separate to scary theft. 2. bell mode, gently remind person come in. 3. 30s alarm mode, sound up for 30s to scary theft, and it wont stop till times up. 4. Beep mode, sound up "beep" when door opened, no worry about children lost. 5. Delayed alarm mode, alarm 15s later when separate, and if closure in 15, the alarm wont sound up, no worry about accidently to trigger the alarm Features: 1. Super lound 130db 2. Built in battery, standy time up to 1 year 3. Easy to install, no tool needed 4. Low battery remind Alarm volume: 105dB Working environment temperature: -10 ~ 60 ° C Working environment humidity: < 80% Storage temperature: -20 ° C —+ 70 ° C Host battery: 3pcs button battery (included) Item weight: Approx. 40g Package includes: 1 x alarm 1 x double sided sticker