1/4 Mile Hosmart Driveway Alarm Wireless Sensor System(2019 Vesion) & Driveway Sensor Alert System Weatherproof Security Outdoor Motion Sensor & Detector (Sensor Powered by AA Batteries)

I have purchased several different types of sensors from Hosmart but this is the first one I have purchased from them that allows me to install my own batteries. I like the option of using my own batteries so that I can use whatever type I want (rechargeable, lithium, etc.). I decided to use lithium batteries for this installation as I have found they perform better over time than regular alkaline batteries. I was thrilled to discover that my existing Hosmart solar sensors work with the new receiver that came with this sensor. I installed this new sensor a few days ago along my driveway (pictured), approximately 500 feet away from the receiver. The receiver is in a sunroom (pictured) with lots of windows, but the space between the sensor and receiver is heavily wooded, with no direct line of sight. The sensor has operated effectively, with no false alarms since the installation, on both sunny and rainy days. I also like the new color as it blends in better with the natural landscape. I received the package on-time and in good condition.

The upgrades Hosmart has recently made to these sensors have turned my already “pretty good” driveway alarm system into an EXCELLENT one!First, this new sensor unit is dark brown, versus the light greenish color of previous versions. This makes it much less conspicuous when mounted to a tree at the end of my driveway. People won’t try to evade a sensor they don’t see!Second, the sensor is powered by four AA batteries but is still fully compatible with the solar-powered alarm system I originally purchased. This is important to me, because I found that the solar-powered sensor was not getting charged under a leafy tree canopy during the limited sunshine hours where I live.Third, they have added a rubber gasket to the case mating surfaces and now provide rubber plugs for the screw holes to ensure no moisture can get inside the unit. Again, this has effectively addressed an issue I had with the older sensor which did let moisture into the enclosure.The upgraded sensor unit still has the same four chime options. It has also simplified the sensitivity settings from four to two: Now just Hi and Low. The Low setting works perfectly for my application.I did have to experiment with placement and sensitivity settings, but quickly found a set-up which works very well. It detects movement across a ~9ft wide gravel driveway, mounted 4ft or 5ft high on a tree, aimed slightly downwards. I am not getting any false alarms with it set-up this way and it reacts as it should to pedestrians and cars. Consistent and reliable.I’ll also take this opportunity to thank Hosmart for their customer-focused attitude. They have been extremely responsive to my emailed questions and clearly very keen to ensure I’m happy and get the most from this system. So in my opinion their positive reviews are well-earned; They have a great product and a commitment to customer-service and continuous improvement that many other companies would do well to follow.(And to support the spirit of continuous improvement... The next upgrade for Hosmart to tackle should be the ability to replace the sensor's AA batteries without having to unscrew the unit.)Bottom line: A very positive all-round experience and I can highly recommend this system for applications like mine.

I purchased this "Driveway Alarm Wireless Sensor System" with its BATTERY powered sensor and then purchased an additional SOLAR powered sensor so I can use the two versions of sensors in different environments. I have the solar sensor (solar panel charges internal Li-Ion battery) placed in an area that receives direct sunshine. I have the (4) AA battery powered sensor placed in an area covered in full shade. Each sensor covers a different driveway on my property (solar sensor is 300' away and battery powered sensor is 700' away). Both sensors are working well at those distances. I like the design aesthetics of the newer round Solar Receiver and appreciate that it can work with both types of sensors. If I had all sunny locations I would most likely prefer to use just Solar sensors (you would need to order the Solar version system that comes with only Solar sensors instead of this particular battery powered sensor system model). An additional benefit is that the Solar sensor can also be charged using the USB charging port on bottom. That might be necessary should there not be enough ambient light to properly solar charge the internal battery (long periods of dense fog or heavy snow). Otherwise, the (4) AA battery powered sensor that comes with this system is working well so far in the shaded environment where its located. Although, I can't comment yet on how long the batteries will last until I have it in use for a year. I'm sure its going to be somewhat dependant of how many alarms per day and the quality of AA battery used. The (4) AA batteries are alleged to last for a year on avg. However, you must de-mount the sensor from whatever its attached to in order to take off the back to remove the 4 AA batteries. So that is an extra step required periodically but having a battery powered sensor and availability of solar powered sensor working with one receiver provides nice flexibility!I will edit this review if anything comes up or I have more real use data on battery life and overall time tested performance. Otherwise, all is good!

I previously reviewed this product as not working well. I was contacted by Hosmart and they promptly sent another unit, which seems to be working very well. Their customer service was excellent and I am pleased to now have a working driveway alarm. My weather has been dry since installing it, so I can't really say how it will handle moisture, but it looks like it should do well. The volume on the receiver is easily adjusted from low to quite loud, which is what I wanted. It was very easy to install and set up. On a couple different days the alarm repeatedly went off for several minutes at the same time of day. I'm not sure why this is happening, but I will make some adjustments to the trees nearby. It might be that I have a party of squirrels dancing in the driveway at 4:00 pm every afternoon! I would definitely buy from Hosmart again as they have made every effort to make sure I was happy with my purchase.