Taiss/Indoor Wall Mounted Photoelectric Beam Sensor 12-240VDC 24-240VAC Retroreflective photoelectric Sensor Switch Proximity Switch Induction Distance 5M BEN5M

It does what is supoused to do good accuracy at fairly long distance 12+ ft. The greatest feature is the isolated set of contacts n.o./n.c. eliminates the need of auxiliary relay

I used this unit to make a parking aid in my garage. Big vehicle small garage. I didn't use the provided mirror because I wanted it to trigger off my vehicle and didn't want the mirror attached to the side of my truck so I used some reflective tape that worked well. Also found it triggers well off the oem side reflectors that are part of the tail and running lights. I didn't use the relay portion of the unit as I mounted the unit on my garage wall and I can easily see the led change from yellow to green when I get parked. Seems to work almost as well with any color reflector or tape ; red, amber, or white, but you'd have to verify this, could reduce operating distance ? Update : Two days later : Since the relay portion of the unit was not being unused I added a second 24 volt LED that I already had and now it is easier to see because now I have two that illuminate when the vehicle is into the garage far enough.

Got this back in January '24 to "watch" my equipment shop for tools that seem to "walk" away. Only a few false trips (tripped by flying insects). If tripped by 2 legged insects siren wails while insects chirp ... less than a second so no problems. Camera sees insect trips ... others run like hell .... Yes, so far no walk away tools. Way more reliable than other light beam sensors I have used before costing far more money. Reflector to light source is about 12-14 feet.

These work with either AC or DC. I use them on commercial dock doors to trigger the Stop-N-Go lights for trailers and to lock out the dock plate. They do not need a reflector. As long as they are in proximity to the door frame, they trigger. I have also used them on a cardboard baler to trigger when the bale ejects. I had to adjust the sensitivity due to fruit flies triggering it. The person who said the N.O. tips were shorted most likely simply needed to turn the mode pot. Well worth the money. Have bought more than 18, all work great.

functions perfectly

Adjustment is easy, relays seem very stabile I like this sensor!

The common and normally open relay contacts are shorted internally. Makes it totally unusable for my purposes.

I returned the unit as the the unit was described on Amazon as requiring a supply Voltage: 12-240VDC but the marking on the unit itself indicated 24-240VDC for the Blue/Brown leads. I wanted one that clearly identified the input voltage was to be12V and so re-ordered one a bit more expensive. It would probably work fine if you use 24VDC source voltage.

Works good for triggering a light when vehicle breaks beam, approx 6 ft distance on 12v

Lo probé y trabajo adecuadamente. Pero después de un día de trabajo continuo fallo. Primero se movió el ajuste. Lo ajuste y trabajo otro rato. Pero después dejo de trabajar. Estoy pidiendo mi renvolso y no lo aplican. 😡