🚧 Enforcer E-931-S35RRQ Seco-Larm Wall Mounted Photoelectric Beam Sensor - 35 Foot Range for Indoor/Outdoor Use Review

These wall mounted E-931-S35RRQ Enforcer photocells from Seco-Larm are rated for 12240V DC / 24240V AC operation and have a relay contact with a maximum rating of one amp. I bought 2 of these to turn on the light when the beam was broken and hooked them up to 120VAC to power both the sensor and a relay contact for my indicator. My setup matched the specifications of the sensor. In about 40% of the cases, the sensor did not turn on the check engine light. That's not enough for my purposes. I…

First of all you need to have strong anchor points. Without them, you will have trouble aligning them. I found a youtube video that explains how to wire my chinese gate opener. The instructions for my opener say this is a model SGO-0000-00. The YouTube video said it was for the CO-Z model. Luckily the information was correct and it worked on the first try. Go to YouTube and find a video to see how to do it step by step. But in the fast version, the brown wire goes to 24V DC, the blue and white…

This is a high quality reflex sensor with a very wide AC/DC supply voltage range that greatly simplifies installation. That's a good value too. The beam spread is approximately 15:1 which means the beam width (coverage) at 15 feet is approximately 1 foot in diameter. It's an infrared beam, so you can't see the beam, but you can see the yellow and red LEDs change state and hear the relay click softly as you align the sensor with the reflector. My only minor gripe (minus 1 star) is that the…