How Does a Power Failure Alarm Device Work? Topvico (103N) скачать в хорошем качестве

How Does a Power Failure Alarm Device Work? Topvico (103N)

How Does a Power Failure Alarm Device Work? Topvico (103N) Brand Name: TOPVICO Model Number: TP-103N Advantages: Alarm for both power failure and come back, different alarm voice for power off and power on, only power off alarm with LED flashing, easy to distinguish for power off and power on alarm 118dB loud alarm voice, loud enough to alert you in any place of the house Manual on / off switch, can be quite after you get alert LED flicker, easy to see the alert even you are far away or in super noise environments Alarm Method: Step 1: sound alarm 2 minutes Step 2: start a loop: 2 minutes pause, then 3 seconds sound alarm, light keep flicker always (save power design, avoid to miss alert because of battery exhausted), as long as the power supply status changes, will trigger alarm, not miss the alarm (for example, power failure, will trigger power failure alarm, when power back, will change to power on alarm directly) Application: Freezer, Medical, Home, Hospital, Factory, Laboratory... Specifications: Function: power off / on alarm Detect Voltage: 100V - 220V Voice: 118dB Power supply: 1 unit 9V battery (not include), normally standby about 12 months Plug optional: EU / US / AU / UK power adapter (will send as buyer's country) Size: as photo Material: ABS Color: White Links in Aliexpress Store: https://s.click.aliexpress.com/e/_okh...