Pros: good product easy to use and well finished worked very well. Cons: dont have a timer , should have two mode, one timed alarm and direct mode, Overall good product. will recommend to any one who want to sleep tght.
Pros: Very very loud Cheap Powered only by three lr44 batteries Cons: Lowest possible quality of casing (seems that blister pack of this pseudo alarm is more expensive than its case) lack of possibility of time adjustment Remarks: What you see is what you get: - siren module (similar to SKU: but...
Pros: Very very loud Cheap Powered only by three lr44 batteries Cons: Lowest possible quality of casing (seems that blister pack of this pseudo alarm is more expensive than its case) lack of possibility of time adjustment Remarks: What you see is what you get: - siren module (similar to SKU: 419429) but with one sound and without speed adjustment - reed switch - micro on/off switch - transistor - solenoid - resistor - three LR44 batteries and a piece of magnetite closed in a little ugly plastic casing All these things are cheap but they are cheaper bought as one "device" ;) Maybe someday I'll add some delay circuit (i.e. sth with ne555) and some good looking casing and then it will serve some purpose - but this is only a "maybe" ;)
Pros:Hace bastante ruido. Por lo que cuesta merece la pena comprar otro antes que cambiarle las pilas Contras: solo viene con una banda de pegamento, para la otra pieza tienes que comprarlo. Aún así estoy contento con la compra
Very cheap, batteries included, seems simple to use. Cons:
I was hoping to get notifier, to be informed when somebody enters into house. But in real alarm sound is like siren. So loud like alarm on bank robbery.
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