I bought two of these units to replace two Heath/Zenith 5316s, one of which was nearly new. The Heath/Zenith 5316 sensors were problematic from the start and were too unreliable to give real peace of mind for their coverage areas. Various weather conditions would make them stop working altogether. The local home improvement and hardware stores only carry the Heath/Zenith products or the same products under a different brand name, but fortunately we're no longer at the mercy of the local store and what they have in stock.
I have both of my Cooper MS180Ws installed and both are working perfectly. I've had chances to test them in weather conditions under which the Heath/Zenith units failed (cool and/or very humid) and they continued to work flawlessly. They are a bit physically larger than the Zenith 5316 but this is apparently to accomodate an oversized lens, which I have to believe helps with it's more consistent detection range and ability. This unit has a brighter, round LED located on the bottom and works opposite of the Zenith model. The LED stays on constantly to show that the unit is in the "armed" condition and blinks off when motion is detected. Also, unlike the ones they replaced, these units make an audible click when triggered, meaning they probably have a more robust relay than the Zenith models. The best part is that they're reliable. I now feel confident that the areas these units are monitoring are protected, and that's the main purpose for me.
I would absolutley recommend this unit to everyone looking for a low-cost, reliable motion sensor and would definitely recommend it over it's competitor's weak offerings. Cooper Lighting MS180W 180 Degree Replacement Motion Security Sensor Floodlight, White
This is a great motion sensor. I've had it in for a few days and had no trouble installing and adjusting it. The instructions are clear and they gave me an idea on how to mount another light on a different part of my yard that work great.
I will check back after this winter on whether it survives New England cold, damp snow.
Bought 2 for different locations with existing outdoor paired flood lamps that are switch operated. Replacing the electrical box cover with a 3 hole model allows the sensor to be mounted to the side or the middle of the lamps. Along with motion sensing this unit had daylight/night sensors to eliminate daytime activation. Easy to install but may need short extension tube for wires for positioning of sensor and clearance from lamp housings. Note, there are 2 colors to choose from with Amazon.
Excellent product. I was really surprised at the sensitivity and distance that the unit responds to motion of large animals and humans. And the unit does not pick up the motion of tree limbs blowing unless they are pretty violent. The 4 minute and 12 minute settings are just great for me and I like the option of having it come on permanently.
It came in a reasonable length of time. The price was very fair. Easy to install with good instructions, although some knowledge of electric wiring is recommended.
It scans as advertised. I have 2 of these. My backyard lights up like a Christmas tree when the sensor(s) are triggered.
Great product. Cooper Lighting MS180 180 Degree Replacement Motion Security Floodlight Sensor, Bronze
Seeing the awesome reviews, I ended up buying this sensor. The instructions were easy to understand, and the test mode worked great. However, when moving this to the 4 min and 12 min modes, the sensor dint initially trigger the light. (the sensor does trip when there is motion, with no difference in lights turning on). I initially thought the sensor wasnt functioning correctly. However, on reading the manual, I realized there were a) many different modes including dawn-to-dusk b) the sensor will prevent the lights from coming on during the daytime. There are a LOT of sensors out there, but this is by far the best! - Led Light - Motion Sensor Light - Motion Sensor - Home Security'
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