MA30RcR Motion Detector Alarm with Rolling Code Remote Control (White)

I needed to know if people were walking in an area they shouldn't be, outdoors. This is January 2013 in the Northeast USA.This alarm tested out OK in the house with rechargeable batteries (eneloop AA, Ni-MH Pre-Charged Rechargeable Batteries, from Amazon). 130 db sounds pretty "alarming" when it goes off near you!There are a couple of minor inconveniences with this alarm. First, it is difficult to tell if it is armed or not; I wait a while (10 seconds at least) and then wave my hand in front of it to test if it is armed properly. Second, you have to aim the control unit at a sensor on the device to arm or disarm the alarm -- and have to be in front of it, not behind it or around a corner.This alarm does turn itself off after a short time, which conserves batteries. Very nice.When the alarm goes off outdoors, from a distance it sounds almost like a chirping bird (a bit more annoying, though). I'm not sure this would alert your neighbors to come to your assistance, but it is loud enough up close to scare away a trespasser and just annoying enough to be noticeable if you are inside your house and it is about 50 feet away.outside -- through walls, windows, etc.I duct-taped it to a steel t-post (from Tractor Supply, you just pound it in ) about 4 1/2 feet above the ground and left it there. It has worked through temperature ranges from zero to 47 degrees Fahrenheit for the past week, through snow and sun, day or night.It easily picks up motion within 20 feet, but has sometimes picked up motion 40-50 feet away. Human sized motion or cars -- not snow flakes.I don't really need the controller feature, so will be trying the push-button code model (MA20) next, but I would recommend this for an entry way, garage or driveway where you could easily turn the alarm off when you come home with the controller unit. The control unit is very neat and compact and comes with a key ring.For now, I am just leaving the alarm outside and am very pleased with how it works. I would recommend this highly and may buy more in the near future.

Installed 4 AA batteries and installed in my travel trailer. It worked every time I tried sneaking in my RV during my testing.I have it sitting discretely sitting on the kitchen counter. I am not going to permanently install this, I will just store it in a drawer while I am using the trailer.I cant rate on battery life, since I just received this.One thing I did have to do was program the remote before it worked. It was very easy.My hope for this device is that if someone broke into my trailer, that the alarm would sound and scare them off, hopefully leaving my stuff still in the trailer.UPDATE: I have had the detector on for about a month, them I disarmed the device and went camping for three days. When I tried to rearm it, it wouldn't. I replaced the batteries and reprogramed the remote and it is working fine. So if yours is not working, make sure you have good batteries and reprogram the remote. It should work fine. I am still very happy with mine!

I put this motion sensor on a boat. Works great, ordered a 2nd fob. Well worth the money.UPDATE...10-28-14 Well, per some of the other comments the unit lost it's code for both fobs. Very difficult to reprogram the unit but managed to do it eventually, the codes only lasted 1 day and now the unit wont reprogram at all.

After having my storage unit robbed I decided this was a must-have from now on. I like the price and easy install but disappointed because of the remote functionality. I had planned to put the unit way back in my storage unit so it would be hard for any thief to get to it. What I found after install was that the remote would only activate it from about 4 feet! I tried new batteries in the remote and the unit itslef, no change. There were notes in the product instructions that you may need to press the activate button 2 or 3 times (because of sorting out 10,000 code possibilities), but I found that past 4 feet it didn't matter how many times you pressed the button, it wouldn't arm.To activate, you need to be 4 to 5 feet away. You can de-activate from at least 10 feet. Motion sensitivity is fairly narrow.Since you need to be so close to alarm the system, I would have been just as well of with the "number-pad" model for less money. The only advantage to this unit to the manual key pad is that you have the ease of a remote and don't have to remember a secret number.My final solution was to mount the unit near the entry at a normal height level for best motion sensitivity and remote arming and putting the optional ES15 External Siren Alarm sound unit far and high away from reach.As to sound level, it is pretty good. Not as loud as a car alarm, but more along the lines of a screaching smoke detector alarm. Not extremely loud, but god aweful annoying that you can't stand it!

A very nice unit for installation in a trailer/RV/motorhome/boat/cabin. The alarm is very loud and annoying and for that I would give it 5 stars for the cost benefit ratio. I purchased the optional external siren also and with both going off... the sound level is tremendous. I like the fact if the intruder rips the wire to the external siren out of the main unit, the external siren will keep going off (as it needs to be connected to be silenced). I believe you can chain several of the external sirens together. Beside the main unit, one extra siren inside a RV and one outside, would seriously impede intruders and bring attention to the break-in, in my opinion.The only hitch I have encountered is the keychain remote. It is a battery killer! The one I have will eat a set of batteries in 2 weeks (not being used). It is likely the one I have is flawed and in the process replacing it. Will update this review after testing the new remote as the keychain remote is a very important link in this system. If this problem is solved I will ammend this to a 5 star review.