sensors

sensors

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  1. P

    How to wire two PIR motion sensors together to activate only on double trigger ?

    Dear All, I have a very old Scantronic alarm system that unlike modern systems does not detect resistance values (no resistors in PIRs or in zones) but activates when the Normally Closed contacts become open. The PIRs are wired with 4 core +ve -ve NC and Com Is it possible to wire two PIRs...
  2. E

    UK PIR sensors in a shower room

    Can a PIR sensor be fitted on the wall of a shower room
  3. S

    How can I wire 3 lights to 2 PIR sensors

    Hello, Disclaimer: Not a qualified electrician but just doing some DIY as a hobby, I've wired up my own Fused Spur before so I know the basics. I want to be able to wire up 3 20W Lights up to 2 PIR sensors on opposite sides of a fence. These must terminate to a standard UK plug socket due to...
  4. J

    Multiple Occupancy sensors. {More than 3}

    Hi all, I just found this forum last night and figured I would post my issue since I can't find much out there with a similar situation. My job is to light a big garage area in basically a basement. The caveat is that the house is in a flood plane. The county flood plane at this house is 5'...
  5. J

    Can I use multiple GU10 led lamps with their own PIR sensors in one room?

    Can I use multiple GU10 led lamps with their own PIR sensors in the same room? I have a row of existing lamps 600mm apart in a straight line & I would like to leave them turned on but only come on when someone is there. Here is a link to the type I am considering if it is possible. -...
  6. T

    Plastic doors and exit sensors for burglar alarms

    Hi, does anyone know of a way to fix a magnetic alarm contact to a plastic door which has a curved beading shape where the magnetic contact would normally be fitted to the exit door. Thanks, T
  7. Electrical2go

    Guide to Microwave vs PIR Sensors

    Sensors are all around us, from the automatic doors we walk through to the motion detectors that turn on our outdoor lights. But how do these sensors work, and what are the different types? In this guide, we will look at two popular types of sensors: passive infrared (PIR) sensors and microwave...
  8. R

    2 pipe & 4 pipe sensors

    Hello The questions are regarding the Sensors used with the Thermostat in a Condominium building. What are 2 pipe & 4 pipe sensors? What should be the typical resistances of each one?
  9. electrical mt

    Staircase timer with pir sensors

    I have replaced a staircase timer because the previous one was fault. There was a problem the light stayed on all the time. When i replaced the new one and awitched on the mcb light when on for some time then switched off. When i oass in front of pir sensor they dont switch on. The sensir is...
  10. Vortigern

    External lux and movement sensors for external car park

    Can anyone recommend light sensors (independent) for a large car park. Must have lux and movement control. To switch around 20 lights on at a time. Load might typically be in the order of <750w. the car park is roughly 80m long and 50m wide, very roughly. There are a few corners Kind of like a...
  11. bobchiba

    PIR sensors and bulkhead lights

    In my apartment block, our hallway has a mix of LED bulkhead lights (all same brand, 5 of them) some incandescent ones (x4). They are on a circuit with about 4 PIR sensors that span the length of the hallway (they all work, I hear the relays click in each one). When the timer goes, all but 2 of...
  12. stidge

    Led panels off multi occupancy sensors

    Hi all , I’m looking at installing 17 led 600x600 panels into suspended ceiling in changing rooms . There are 2 x entrances and showers so I’m thinking 3 x pir 360 ( occupancy sensors ) to control all lighting . Anyone have any experience with connecting all s/l together in sensors to turn on...
  13. B

    Heat Sensors and Micro Switches

    Hello, I have a Kitchen Exhaust Hood that an "electrician" tried to wire and has a disaster. Basically, I have 2 motors, 2 on/ off switches, 2 micro switches, and 1 heat sensor. When the heat sensor is activated, motor 1 needs to turn on regardless if the switch is turned on or off. When...
  14. P

    C02 sensors within multifloor office building

    i am working in an office building that has several C02 sensors. They sense C02 levels only within offices that are enclosed where are C02 sensors normally installed within a ventilation system, what is the normal parameter set points and what is the normal cause and effect
  15. S

    Multiple motion sensors for one lightning circuit problem

    Hey Guys! I have a little complex task. Its working overall, but i want to understand some strange acting of the motion sensors. Basically 3 lightning circuits to control with 4 motion sensors which are the same EGLO detect me 6. 1., The sensor 1 lets say M1 and the sensor 2, lets say M2...
  16. D

    Help with parking sensors

    Hi I'm after some help with my parking sensors on my Renault traffic 65 plate. When I put into reverse and press the sensor button nothing seems to work. I listened out for clicking on the back but not one of them is clicking. Any help would be appreciated Thanks
  17. N

    Two PIR sensors to work same lights

    Hi all Does anyone know of PIR sensors that can be connected to switch on the same lights. Basically, i need to install 2 sensors located around the corner from each other and either of these two sensors need to switch on 4 led wall lights. Spoke to Knightsbridge, they say that this can't be...
  18. D

    warehouse aisle sensors

    hello to all happy new year to all, i have been asked by a client to fit sensors in the aisles of their warehouse, all they want is simple on when detection and off when no people or frork trucks etc , switching sections of an aisle as motion is detected, the loading is very low as existing...
  19. J

    Help turning off motion sensors

    I got these new lights from Philips from the 'mygarden' category that have these motion sensors on them, the only problem is these motion sensors are absolute garbage. I tried to disable the motion sensors but failed hard. I am NOT an electrician nor do i have any experience is that area. I've...
  20. C

    Microwave sensors hall way lights

    microwave sensors on lights are great, the only disadvantage is that they sense through doors meaning tenants activate the corridor light going to the toilet in the evening. I managed to partially block the sensor with aluminium kitchen foil.. has anyone had similar issues?

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