The two halves are wired up so that they cancel each other out.
Quick Sense(Qs-09): 180` Wall-Mount PIR Motion Sensor Switch with Light Sensor, Energy Saving Sensor,LUX Adjustment, Time Adjustment,Automatic Sensor 220V 3.8 out of 5 stars 417 ₹649 ₹ 649 ₹1,500 ₹1,500 Save ₹851 (57%) For applications where very fine motion activities such as typing are most common, the dual-technology sensor is the better solution. Let Lutron's Maestro Occupancy Sensor switch turn the lights on and off for you. radiant® Screwless Wall Plate not included. The LOS W Series wall mount occupancy sensors are used in spaces with pendant fixtures, ceiling fans, or high ceilings. The dual-technology versions detects minor motion via ultrasonic (US) technology to ensure optimal power savings and occupancy detection. The sensor in a motion detector is actually split in two halves. This is even worse when you have to go outside the house in the dark or go through an area of the house that is sunk in darkness during the night. If set to the "–" end it will operate only in total darkness. Manual mode works only with the ON-TIME switch in the 1, 5, or 20 position. Ideally it should be set at dusk or in the light conditions under which the sensor … Vertical adjustment 180°, Horizontal adjustment 90° Weatherproof rating: IP44; HPM movement sensor manual override. Automatically turns lights ON when someone enters a room and OFF when they exit. In this article, we will discuss the fact about how do motion sensor lights work. If set to the "+" end it will switch during daylight. This sensor replaces a standard light or fan single pole switch and is ideal for bedrooms and baths. MANUAL MODE Manual mode only works at night because daylight returns the sensor to AUTO. Very low power consumption, you can also adjust the light and the time when light on at the back of the device. The reason for that is that we are looking to detect motion (change) not average IR levels.
Features three settings: Automatic-ON, Manual-ON, and Selectable Auto/Manual ON for more flexible control.
Lutron now offers Maestro occupancy/vacancy sensor switches in passive infrared(PIR) or dual-technology sensing models. Easy surface mount installation. Its a simple, easy, and low cost way to save energy and add automation to your home. If one half sees more or less IR radiation than the other, the output will swing high or low. Includes three interchangeable face plates.
Are you annoyed by the fact that you have to look for the light switch in the dark? The Lux adjustment controls the light level at which the unit will switch on the light when movement is sensed.