GE 51207 Smart Home Wireless Motion Sensor Alarm Review

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(More customer reviews)I recently purchased two of these motion detector alarms. I had a few questions before purchasing that the other reviewers hadn't answered. I'll try to give a complete review to help others who might be considering the purchase.
The units feel a bit cheap, but they do work as described. They have two operating modes: chime and alarm - controlled by a tiny switch on the side of the remote. The chim mode sounds a doorbell like chime (fairly loud) when someone moves across the beam. The alarm has a 45 second exit and 30 second entry time. Many people obviously want a shorter entry time, fearing that a burglar would have too much time to get into the house.
A couple minor operating points. When the alarm is first tripped starting the 30 second countdown, it sounds a single loud beep. That can be good or bad. It might alert you, but it also alerts the intruder - perhaps allowing him time to disable the alarm before it sounds. When the alarm finally does go off, hold you ears because it's quite loud at 120dB.
The remote uses a small watch type battery that is included. The remote is very simple to operate with "enable" and "disable" buttons. The motion sensor itself takes 3AA batteries that are not included. The units come with a plastic swivel wall-mount bracket, screws, and sheetrock inserts. The motion sensors will not sit flat on a table, because their bases are rounded.
The manufacturer apparently has a problem with quality control. As other reviewers have pointed out, there is a problem with the screw holding on the battery compartment. I bought two units and the screw on one unit was crossthreaded into the plastic and impossible to remove without stripping the head. The screw on the second unit came right out without any problem. I've since exchanged the first unit.
I hope this answers any remaining questions. If not, please feel free to ask me.
Please be kind enough to indicate if reviews are helpful.

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GE Motion Sensing Alarm 51207.

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Wireless Motion Alert Kit-600' Max Range Review

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(More customer reviews)This is the fourth remote driveway alarm we have tried. The others ranged from a $70 GE unit to a $250 unit that supposedly worked "up to four miles." They would either not have the range needed (about 100 yards) or would stop working after a few days. Replacements were tried for all, and all had the same failures or problems.
This one, however, has now been working flawlessly here for two weeks. It has been through a major rainstorm and several extremely foggy mornings. Temperatures here have been as high as 94 degrees.
Other pro's:
Worked out of the box with both receivers. The default settings were fine and setting switches was not necessary.
We like the ability to choose the alarm sound. We chose the short musical selection for the house. The workshop/garage has the sharp whistle tone, as there is often other loud noise going on.
Con's:
Like most infra-red receivers, it does occasionally pick up dogs, deer, and even a crow that flies close enough. It does not trigger on trees or leaves, even in high wind (and where we have it mounted, there is a small forest across the driveway.) I suppose that would be possible, however, if the tree/leaves were in the sunshine, and thus hotter than the surroundings. BTW, although called a "motion sensor," the manufacturer says an object must be a minimum of six degrees warmer than the surroundings to be detected.
Suggestions:
We found that vehicle pickup is more reliable if the sensor is pointed somewhat down the driveway rather than directly across it.
Setting it higher off the ground reduces the triggers on dogs, but also makes it possible to miss some vehicles that do not produce a heat signature that high off the ground. We set ours at about four feet. It still picks up medium and larger dogs, but has not missed a single vehicle. It does not pick up cats, skunks, etc.
If you get false alarms, especially at similar times of day each day, try changing the transmitter and receiver subcode. One of your neighbors may be using the same unit.
Update, 2009:
Well, it's still working fine almost two years later. It does occasionally miss a vehicle, and we have noticed that almost all of the ones it misses are painted white. Maybe that has something to do with the temperature difference requirements. Maybe mounting it a little lower would help.
It has stopped working once. That was one of those so-foggy-everything-is-soaked mornings. I brought the transmitter indoors and removed the battery. Then I set the opened case in front of a small fan for a couple of hours. After the drying it again worked fine, and has since. Still highly recommended.


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Don't be caught unaware. Protect your home or business from unexpected visitors. The WMA Wireless Motion Alert system sends an immediate alert when a person or car enters your property. The transmitter operates on one 9V battery, is weatherproof, and easily mounts to a tree or post near the driveway. The transmitter uses a infrared beam to detect people or vehicles to a distance up to 80', then sends a radio signal back to the receiver, which can be placed in your home up to 600 feet away. Dakota Alert WMA-3000 / Includes one Transmitter and one WR-3000 Receiver / Transmitter uses a passive infrared (PIR) beam to detect people or vehicles up to a distance of 80', then sends radio signal back to the Receiver up to 60' away (actual range will vary depending on local terrain). / Operating temp range: -30 degrees F to 120 degress F.

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Dakota Alert Extra Wireless Transmitter Review

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(More customer reviews)I thought it was great when I bought it. Soon though I found people coming to the door without hearing the alarm going off beforehand. It only worked for 6 months. Stay away from this company and this product.

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- Dakota Alertextra wireless transmitter- For the Wireless Motion Alert 3000 (DK-WMA-3000)- The extra wireless transmitter can be used in other locations such as driveways, other buildings, or backyardDK-WMT-3000

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