A. Ju's device uses the newest technology. B. Ju's device sounds an alarm when the door opens. C. Ju worked hard to lower the cost of her device. D. Ju would use more components in her device.4.What did Ju think of her device?A. It can have other possible uses. B. It can...
5 major malfunction alarmsReal-time monitoring of door lock status and timely alarm in case of abnormality 10 Safety FeaturesAll-round safety features: Little Black Box-proof and electronic double lock Multi-scenario smart link*Lights come on when door opens and door is armed with one touch when...
In this house the back door opens directly into the kitchen. barn door n (door of a farm building) SC 谷仓门 gǔ cāng ménTC 倉庫門 Buying an alarm system after you've been burgled is a lot like closing the barn door after the horses are out. beat a path to [sb]'s door v exp...
A. Open B. To open C. Opening D. Opens 相关知识点: 试题来源: 解析 A。解析:这是一个祈使句,祈使句直接以动词原形开头,表示命令、请求等。B选项“To open”是不定式,不能用于祈使句开头;C选项“Opening”是现在分词形式;D选项“Opens”是第三人称单数形式,都不符合祈使句的语法结构。反馈...
The utility model discloses a car alarm device that opens door, include active sensor group, passive sensor group, alarm, power and detector, the power is connected with the detector, and the detector is connected with alarm, active sensor group and passive sensor group respectively, and the ...
from inside even when the battery is completely removed Local and remote tamper alerts In case of tampering, the lock will sound an alarm and trigger the local and remote notifications. No more forgetting to close the door The door will be automatically locked right after it is closed...
2) The PDL3000 US26D Trilogy from Alarm Lock Systems Inc. is also among the most expensive locks on the planet. The lock can be programmed to allow free passage or total lock out of groups or even auto lock or unlock when necessary. Be prepared to pay more than 1000 dollars for this...
2. Door Wedge or Door Stop Alarm A simple door wedge can be used under the door to prevent it from being opened. For an added level of security, consider a door stop alarm, which emits a loud noise when the door is pressed against it, providing both a physical barrier and a noise ...
The doorbell's infrared sensor can be used to welcome customers in stores or trigger an alarm when someone opens a door or window, providing an additional layer of security. **Versatile and User-Friendly** The Fuers Wireless Doorbell is not just a doorbell; it's a versatile home assistant ...
The job of a tilt sensor is to detect the open/closed status of a garage door based on its position. The tilt sensor is vertical when the garage is closed and moves to a horizontal position as it opens. Thus, the alarm activates if someone tries to open the armed door. The alarm sys...