1/2 Mile Hosmart Driveway Alarm Wireless Sensor System & Driveway Sensor Alert System Weatherproof Security Outdoor Motion Sensor & Detector

Honest review: I have the previous version with the rechargeable battery bought in May 2021. That being said, I think all of the features and quality will be the same. This alarm system absolutely works as described. My house is in the woods, so I wanted to know when someone approaches. My driveway is 800 ft long, however the sensor is located on the front of my detached garage nearer to my home about 150ft - 200ft from the alarm. In the almost 4 years of owning it, I have charged the sensor maybe 4 times. I estimate that the alarm is triggered around 10 - 12 times a day. I keep the alarm in my home plugged in so I cannot speak on battery life with that.The alarm in the house has options that I have never explored as I only use it as it came programmed i.e. various tones and zones, I think for multiple sensors.Pros:1. The sensor has withstood our New Hampshire weather, freezing cold, snow, and freezing rain without breaking.2. Battery life is very good with charge lasting well over 6 months (cannot speak to replaceable batteries).3. The adjustable alarm is loud enough to hear throughout the house.4. Never an issue with quality.Cons:I do not have any cons to list but here are some things I've dealt with primarily due to my placement of the sensor.1. Wildlife will trigger it as should be expected, birds, rabbits, squirrels, and once a pair of coyotes passing through in the middle of the night.2. Falling leaves in the fall triggers it.Tips:1. Don't place the sensor where you do a lot of activity like I did. I don't typically work out of my garage but on the occasion that I do, the alarm will continue to chime every time I enter or exit the door (drives my wife and dogs nuts). She simple unplugs the alarm until I am done.2. The alarm will chime if you place the sensor where delivery trucks i.e. UPS and Fedex need to turn around. My driveway requires them to do multiple point turns and it happens to be right in front of the sensor.I will probably be moving the sensor down the driveway a bit to avoid these unnecessary chimes.All in all, this alarm does everything it says it will do. It alerts you when triggered and quality has never been an issue. When the time comes and I need to replace it, I will not hesitate to stick with this system.

We have a very long, circular driveway, and the product has been great and true to what it says! Very pleased!

Pretty reliable and easy to set up. Do be careful of the antenna. I had to order this to replace the base unit that broke even though it still works at a shorter range. I have a set for gate guard work and they are way better than the ones some guard companies hand out. If it is really windy and a patch of dirt or a dust devil kicks up, they will go off. But at least the tines are not as annoying. You can select different tones, there's 4 to choose from. And there's a selection to choose for the really wind roads, regular roads and narrow roads. Over all they are pretty durable and have lasted through being used as head and butt scratchers by cattle, horses, and perches for various birds. They charge fast and maintain a charge. The longest we have gone with out a charge was 4 months. Keep in mind though that it depends on the traffic you have and how many times they get set off by whatever as well. The only thing I would really like to see with these is an on/off switch. The sensor has to be taken apart to unplug the battery. other than that I have no complaints. The base station does have volume adjustment and a power button. It will run off batteries, though it will eat batteries pretty quick, but there is the plug in too and the cord is really long. Direct line of sight, you will get over 1/4 mile distance, but if there are bushes and trees, then you are looking at 1/4 mile or less. The sensors are on the cute side. They looks like little bird houses and the conceal fairly well so they are not an eye sore or obviously announcing by sight to traffic of their arrival. The overall product is pretty durable and reliable and light weight. I really recommend getting this whether you do gate guard work or are stationary.

I chose this unit with two transmitters to monitor my road to my house. I set one transmitter about 400 feet away monitoring my driveway and the 2nd unit near my house so I get two different chimes telling me where the vehicle or person is.Unit comes in pieces so be prepared to put it together. You don't need the instructions. It's pretty simple to do. Don't forget to plug in the power supply cable which comes disconnected so the battery won't be completely discharged when you receive it.So plug in the power cable and before putting the cover on select the channel you want the transmitter to use. There is a small selector switch in it for channels 1 through 4. Each channel has it's own sound and has a light on the receiver showing which unit is alarming.Now something very important about the channel selection is this: Channels 1 and 2 will have the transmitter sensor turn red when it senses motion. Channels 3 and 4 keep the transmitter light OFF when it senses motion.So make sure if you don't want someone seeing the unit's red sensor light to select channel 3 or 4. I found that feature one of the best. I selected channels 3 and 4 so no one can see it when it senses motion.There is also a switch to adjust the sensitivity or "range" of the sensor. I left both units at maximum range. Now what I discovered is quite interesting. The unit that is 400 feet away looks across my driveway towards another road that runs parallel with mine. The other road is about 150 feet away and is up a slight hill. When a vehicle passes by on that road the sensor picks up the motion and alerts. I really was a bit shocked about that so next time I charge it I will have to lower the range of that sensor.Oh, and don't forget to charge the battery before you put it all together. There is a micro usb cable and power supply that powers the base receiver that is also used to charge the internal Li-OH battery. Make sure the battery plug inside the unit is plugged into the unit's board before trying to charge the battery. There is a small rubber plug/flap on the bottom of the unit where you plug in the battery charging micro usb cable. When the internal battery is charging the sensor light is blue. When charge is complete the sensor light is off.Once done charging make sure you test the sensor with the base receiver and finally put it all together. There is a very small gasket on the unit so make sure it is in place before you screw down the cover or it will be offset and not seal. Don't over tighten the screws because it will cause that section of the cover to pop up (yes, I did this! Had to use hot glue to ensure it was sealed).Mount it where you want it and that's pretty much it. The base unit is powered by either AA Batteries (4) or the included power supply. You can put batteries in it and plug it in to AC power so if AC power is off you still have the unit functioning. The volume on the base receiver can go quite high so adjust it to your liking.All in all I am very happy with this system. I will update this after the Winter to write how it functioned in the sub zero cold here.