SEBSON® 2 x Indoor Motion Detector, Wall Mounted, Suitable LED, Infrared Sensor, Programmable, Range 9m/160°

Bought the twin set of PIR’s for installation on our warehouse staircase leading to the Mezzanine.. We needed a PIR at the bottom of the staircase and one at the top so that we could navigate the staircase safely, hands free and in low light at any time of the day or night. We have plasterboard partitions in our warehouse and it was obvious from the listing that these could be installed without the need for a back box. Having read previous reviews and in particular the one which states that it can’t be used for dual switching I was prepared to send them back if they didn’t meet our intended purpose.However, the units arrived in a neat little box with a very good installation and user instruction leaflet. On page 9 of the leaflet under the title “Instructions for Installation (figure 5)”, half way down the page it gives instructions on how to set these PIR up for parallel wiring ie. 2 way use by following the wiring schematic shown in (figure 4). I have included photo’s of both these pages with this review. The schematic shows no inclusion of an earth wire, however earth wire can be connected together at the back using a wago or normal connector block. Please note that if you intend on installing these into anything metal you should earth them accordingly. If in doubt please consult an electrician.Although not indicated in the leaflet, in accordance with the wiring regulations in the UK and for ease of use we installed a double pole isolator switch between the power and the units so that if we need to service the light we can isolate the power to these without having to isolate the complete circuit in the warehouse.We’re very happy with the result!Pro’s:1. Easy to install in plasterboard walls without the need for screws;2. Compact and unobtrusive;3. Good detailed installation instructions.Con’s:1. Undersized for UK surface mounted patress boxes;2. Instructions did not address earth connections;3. Although instructions did mention that installation should be carried out in accordance with the wiring regulations of your country and both units have an ‘off’ setting, it should be mandatory to include instructions for the installation of an isolator switch in particular when two units are wired in parallel (2 way) as there is always the potential for one to be live making it hazardous if the light fitting needs servicing. Better safe than sorry!

Facile à installer et détection efficace. Attention à bien prévoir un encastrement suffisamment profond, le bloc est assez gros.

you need to have L N and then you can have L sensor output, if you have only 1 wire this will not work.

very large requires face plates, deep wall boxes and patience to fit. Fitted to LED's the switch detects when you are present perfectly, however it also turns on randomly when it feels like it, "i'm still here look at me switching for no bloody reason".After assuming and testing for temperature and other sources of heat setting these trigger happy switches off, it's safe to assume I've just been mugged off with a pair of anxious light switches.

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