Showing posts with label security sensors. Show all posts
Showing posts with label security sensors. Show all posts

11/15/2011

Dakota Alert Long Range Alert System Kit Review

Dakota Alert Long Range Alert System Kit
Average Reviews:

(More customer reviews)
Here's a device that does what it says. I've been able to hear the alerting transmitter as far away as six miles.
This unit operates on MURS channels which are in the VHF spectrum between
151.82 mhz and 154.6 mhz, respectfully.
This means that this unit is also fully compatible with the Dakota MURS intercom system.
I have both and have units in my Shop, Barn and House.
I am able to hear an alert on all three and intercom as well.
I almost never have any false alarms. I've mounted the alarm unit on a tree at about 4 feet elevation. The beam width if fairly narrow but detects cars, people or animals out to about 50 or 60 feet.
One nice feature allows an external contact closure at all of the receivers when an alert comes in.
This could be used to open a gate or perhaps another outside alarm or even a garage door. Lot's of possibilities here.
Dakota also makes a hand held unit that could hear the alert and also intercom with all the rest of the units in the system.
Great for us farm operators that might be out in the pasture working.
Care should be given when adding to this system as Dakota also makes a short range alert transmitter that looks like the MURS units. It is not the same and operates on UHF channels.
Make sure the device stipulates MURS or VHF operation.

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10/01/2011

MURS Hand Held Two-Way Radio, M538-HT Review

MURS Hand Held Two-Way Radio, M538-HT
Average Reviews:

(More customer reviews)
We currently use three of these handheld units and plan to purchase a fourth. Here in rural southwestern Ohio, where there are lots of hills and woods, the 1 watt output of these radios provide a one mile range reliably. While traveling in convoy on long and unobstructed stretches of highway, the range is greater. They are used infrequently and have provided communications for five weekend long events over the past two months. For well under one hundred dollars, I did not expect much. These units exceeded my expectations.
While the manual that comes with the radio is not very detailed, vender support is outstanding. I had a question regarding charging the batteries and received a reply within one business day. They recommended charging for 24 hours when new or totally depleted and overnight for normal daily use. These radios use commonly available rechargeable AA batteries and not the expensive type found on many amateur and commercial handheld radios. In other words, no special order for replacement rechargeable batteries. Also, at need, regular alkaline batteries may be used. (Attempting to charge the alkaline type batteries will damage the unit) The rechargeable batteries supplied work surprisingly well. We keep our transmissions short and to the point and regularly operate for two days and more per charge, especially if we turn them off for the night. These radios are extremely easy on the batteries while receiving and only draw the batteries down appreciably while transmitting.
I hope to acquire the matching Dakota Alert MURS transmitters to provide wireless and portable security at remote locations. Allowing us to monitor the area around the vehicles or camp while in the woods etc.
These radios are not water resistant nor do they provide military grade shock resistance. These radios are not "industrial strength", but neither is the price. They do provide all five of the unlicensed MURS frequencies while many others only provide one or two operating frequencies. They are affordably priced with great customer support from the vendor, Home Controls / Home Security 4 Less. In summary, good value for the money.


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