SteinelMotion Sensor IS 180-2 Anthracite, PIR Motion Detector, 12 m Reach, max. 1000 W for 6 LED Lights, Twilight Switch, Grey, 5.6 x 7.6 x 12 cm

I couldn't work out why my outside lights kept tripping so just left them off, until I chanced on some of the reviews of this PIR I was using and realised it could be the cause, so took a chance and ordered a new one, replaced it and hey presto all working again.This was after 5 years. So, regard as something that will need replacing every few years and judge it on that - it's not cheap but it does a great job while it lasts...

The same Steinel quality I have come across before. A little expensive but I expect it will last longer and perform better than cheaper products.This model has two settings, a 5m semi-circle which works perfectly and a 12m setting of a more complex sensor "shape" illustrated in the manual. The result of the "shape" is that it is not 12m head on and I have found it difficult to selectively mask the 45deg 12m peaks against unwanted detection. I'm not criticising that characteristic as it is described in the manual but it needs to be understood if a 12m range is wanted.If an 8m semi-circle would suit consider this model... Steinel IS2180-5 Motion Detector, Black  (which, unlike the reviewed model, has a manual over-ride feature)One thing I will knock a star off for in the hope that Steinel will address the issue is that every time I remove the cover on all my Steinels, necessary to adjust settings and I agree with enclosed adjustment, the plastic mask pieces fall out, usually to the ground.

having fallen for the widespread notion that German engineering is at the cutting edge, and having had 2 others fail, I bought this. Bizarrely the instructions were totally inadequate (I had to scour the internet to find out how to alter the Time and Sensitivity). Even more bizarre is the fact that the LUX detector appears to be part of the Sensitivity detector. Whatever, after about 5 weeks, the LUX detector stopped working, so that the light came on all day long even on bright, sunny days, so am sending this back. Sadly I have paid 2 electrician's (expensive in the UK) a) to have this installed, and b) to have it now uninstalled, making this an extremely expensive mistake. I also wished I had read the very helpful review by Namen sind Schall und Rauch (translate from the German) showing that in stand-by, this item is very far from an efficient user of power. Why does Amazon not give a HELPFUL button for reviews in other languages?

Great sensorCovers a large area 10m deep by 20m wide garden and all is covered any movement even in corners is picks and lights come on. Movement is also detected as soon as you walk around either corner of the house 5-6 meters on either side so is full 180 degreesOnly thing I could find on the negative side is there isn’t a great deal of space for wiring but this seems to be an issue with many modern outdoor light, I’ve seen a lot worse

I spent a long time investigating motion sensors and decided to go for this model as it came with a 3 year warranty and looked straight forward to install. A bit on the expensive side. It took a couple of hours to fit, the secret is to wire the sensor on a bench (easy to handle) then feeding the cables through the wall to a junction box x 2. One for feed and the other to the lights. I have 2 outdoor LEDs lights feeding from this and the adjustment settings easy to work out. So far so good works great.

This is a very nice compact unit that works exactly as it should.It's simple to fit and wire, although this should in reality be done by a qualified electrician or non-electrician with Part-P qualifications.The detection range is consistent with a unit of this type, without any nuisance switching which can happen from time to time. The settings are easy to adjust and test.

Came with optional brackets for various fixing situationsb a corner mount bracket, extended spacer back plate with clearance for cables behind the unit. Easy to wire and adjust settings. Works as expected.Overall good build quality but slightly pricey in my opinion. It does look nicer with is faux brushed black nickel finish compared to other PIR sensors.

This is the third one of these sensors that I've had. They work well but the previous two have eventually failed after maybe 5 years. The location they are installed in renders them vulnerable to ingress by woodlice and slugs, and the damp and muck they bring with them. This time I've sealed it with silicone so hopefully I won't have the same problem again!