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0 01:01:02

Din världsbutik Fyndrea Mobilappar

LightInTheBox.com levererar till nästan alla länder i världen.

Välj valuta: $ USD

Genomsnittligt Betyg: 5 (8 recensioner)
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  • 1
  • Av kea
  • Verifierad köpare
  • 28 / 11 / 2014

Hurtig og tilfredsstillende levering og et godt produkt til en rimelig pris

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  • Av foshland
  • Verifierad köpare
  • 5 / 11 / 2014

Installed for a 130m wall, outside, works perfect

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  • Av acheteur fidéle
  • Verifierad köpare
  • 12 / 9 / 2014

tres bon rapport qualité prix !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

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  • Av justinkissane15
  • Verifierad köpare
  • 25 / 8 / 2014

Great product and fast delivery. Didn't mind paying customs, expected to pay that but it was frustrating to pay a 10 euro extra DHL ad min charge which is happening all the time now regardless of how much or little you buy.... But just to reiterate the product is excellent.

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  • Av Steve
  • Verifierad köpare
  • 7 / 10 / 2013

I was skeptical about the construction of the devices because there is a lot of plastic but they installed and set up quickly. While the manual (in Chinglish) describes the setup process it's actually easier to wing it. Since I have used beam sensors before, I know that you should avoid putting the receiving unit where it will receive too much direct sunlight. That said, the easiest way to set up the pair is to simply use a green laser pen (easier to see in daylight) pointed from each end to coarse align the transmitter and receiver to point at each other. The good news is that the transmitter isn't a laser with a 1/2" alignment field. With them a hundred feet apart the beam is a couple feet wide at the receiving end. A digital LCD on the receiver indicates the beam's signal strength and all the user does is adjust the alignment screws to peak the meter reading and then put the protective cover back on. It was easier than I thought it was going to be.
As I said, I bought 5 units and have installed 3 thus far, one of each type. They are all being used outdoors. The Xmit/Rec distance for the 4 beam unit is about 200 feet; the 3 beam unit is about 120 feet; and, the 2 beam unit is about 75 feet. While the ratings for each allow significantly longer range, my interest is in reducing false positives. I have used some single beam IR detectors in the past that were too susceptible to the environment (like the sun and leaves) and presumed that using multiple beams at closer than maximum distance would eliminate the problem.
So, overall I am quite satisfied so far. I have the units attached to a home control system that can count the beam intrusions and send emails when necessary. Thus far I have not experienced false positives or failures to detect something crossing the beam path. Perhaps it will be a different story when it starts snowing around here but so far it's better than other things I've tried. I give them all 5 stars.

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  • Av micktalyor
  • Verifierad köpare
  • 16 / 6 / 2014

Nice bit of kit at a good price. Has no retaining washers on casing screws which is not ideal but i bought some online so problem solved.

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  • Av info
  • Verifierad köpare
  • 1 / 4 / 2014

für den preis ok, in ordnung, gute funktion

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  • Av gy.garcia
  • Verifierad köpare
  • 2 / 3 / 2015

Matériel reçu dans les délais exacts donnés avec un emballage correct.

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