BetterLink Solar Wireless Driveway Alarm System (Open Box)

If it was possible I could have given it 10 stars. There are not may products built like this. absolutely fabulous! I am using this for perimeter security. I ordered 4 sensor system that comes one base unit. I have hooked it up with my secondary alarm system for triggering a siren and warning lights. I have mounted two alarms on two opposite corners of my property, each pair inside a wooden housing at right angles to each other. The wooden housing prevents false triggering from objects that are outside the periphery. I control the secondary alarm through google assistant, relays and wifi switches. I tried several other alarm systems but none came close to this one. The product has super amazing battery. Once charged it lasts for more than a month. The sensors keep themselves charged with the sunlight. The detection range is awesome. I initially thought I would need additional sensors to allow detection for each edge of the property, but one sensor for each direction was sufficient for the job. The base unit is quite small, you can carry it anywhere if your property is large and you will be at different places at different times and you want to have a tab on who is entering your property. When I started with the project, I found that base unit came with an earphone jack. When a particular sensor was triggered, it would send a specific tone through the speaker of the base unit or through the earphone jack. I wired up photo resister light sensors to detect the flashing lights and then trigger a relay to sound a larger alarm with flashing lights to deter the intruder. I inquired BetterLink (vendor) if there was a way they I could trap on the light signals from the wires instead of relying on secondary detection through photo resister sensors. Their awesome engineering team immediately got to work. They enhanced the product to send the detection signals instead of tones through the earphone jack of the base unit and shipped me two base units for free. The earphone jack (stereo) could be used for emitting output only from two different sensors, so they sent me two (thanks BetterLink, you guys are awesome). I have connected the two base units to my main system and my entire system is working beautifully. Absolutely recommend this system. There are numerous possibilities if you want to use the product for other projects.