Motion Sensor Indoor Lighting PIR Occupancy Sensor Switch 200w Wall mounting auto on/Off Lights, Presence Detection

Product Information

The PIR sensor is typically mounted on a printed circuit board containing the necessary electronics required to interpret the signals from the sensor itself. The complete assembly is usually contained within a housing, mounted in a location where the sensor can cover the area to be monitored. item specification -- distance: 2~12 meters (adjustable); detection angle: ≤160°; time-delay: 5sec~10min(adjustable); recommended installation height: 1.5~4m. wire connection instruction: brown wire: live input, red wire: live output, blue wire: common neutral.

Simple things like air blowing in close proximity or a rodent moving across the floor can still set off your alarm.At a basic level, PIR sensors operate using positive differential change. Two IR-sensitive slots sit in front of the lens, with their field of “vision” determining the range of detection. While ‘idle’, the ambient level of infrared detected in the room (naturally emitted by all objects) is the same on both slots. The minute an object, person or animal moves through the detecting area, it is sensed by one of the slots before the other, causing a positive differential as it passes by, and a negative differential change as it leaves the area. The housing will usually have a plastic "window" through which the infrared energy can enter. Despite often being only translucent to visible light, infrared energy is able to reach the sensor through the window because the plastic used is transparent to infrared radiation. The plastic window reduces the chance of foreign objects (dust, insects, rain, etc.) from obscuring the sensor's field of view, damaging the mechanism, and/or causing false alarms. The window may be used as a filter, to limit the wavelengths to 8-14 micrometres, which is closest to the infrared radiation emitted by humans. It may also serve as a focusing mechanism; see below. A PIR-based motion detector is used to sense movement of people, animals, or other objects. They are commonly used in burglar alarms and automatically activated lighting systems. PIR sensors are great at determining if you have an intruder or it’s just an animal, for example. They have a better accuracy level and can reduce false alarms overall. However, you should pay attention to some small details to further reduce the risk of false alarms from your PIR motion sensors.

Time-delay is sens adjustable: it can be adjusted according to using location; low sensitivity with 2m for detection distance; high sensitivity with 12m, it fits for large room.continually: when it receives the second induction signals after the first induction, it will compute time once more on the rest of the first time-delay basic (set time). motion sensor outdoor -- the pir sensor adopts infrared body motion induction technology, which can achieve intelligent control and energy saving. recommended that the product is installed by professional electrician. It is also recommended that the PIR not be placed in such a position that an HVAC vent would blow hot or cold air onto the surface of the plastic which covers the housing's window. Although air has very low emissivity (emits very small amounts of infrared energy), the air blowing on the plastic window cover could change the plastic's temperature enough to trigger a false alarm. Sensors are also often designed to "ignore" domestic pets, such as dogs or cats, by setting a higher sensitivity threshold, or by ensuring that the floor of the room remains out of focus.Once the PIR sensor detects movement an alert is sent to the alarm panel which activates the alarm. It is critical to completely enclose the PIR sensor itself with a material that can reduce the effects of external temperature and humidity, such as metals like silicon. The benefits of PIR Additional uses can be in public toilets, walk-in pantries, hallways or anywhere that automatic control of lights is useful. This can provide energy savings as the lights are only turned on when they are needed and there is no reliance on users remembering to turn the lights off when they leave the area.

Manufacturers recommend careful placement of their products to prevent false alarms (i.e., any detection not caused by an intruder). Motion detector with superimposed beam pattern. The length of the beams is a measure of the detectors sensitivity in that direction. A passive infrared sensor detects the infrared light emitted by a warm object using passive infrared technology. The plastic window covering may have multiple facets molded into it, to focus the infrared energy onto the sensor. Each individual facet is a Fresnel lens. They suggest mounting the PIRs in such a way that the PIR cannot "see" out of a window. Although the wavelength of infrared radiation to which the chips are sensitive does not penetrate glass very well, a strong infrared source (such as from a vehicle headlight or sunlight) can overload the sensor and cause a false alarm. A person moving on the other side of the glass would not be "seen" by the PID. That may be good for a window facing a public sidewalk, or bad for a window in an interior partition.

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PIRs come in many configurations for a wide variety of applications. The most common models have numerous Fresnel lenses or mirror segments, an effective range of about 10 meters (30 feet), and a field of view less than 180°. Models with wider fields of view, including 360°, are available, typically designed to mount on a ceiling. Some larger PIRs are made with single segment mirrors and can sense changes in infrared energy over 30 meters (100 feet) from the PIR. There are also PIRs designed with reversible orientation mirrors which allow either broad coverage (110° wide) or very narrow "curtain" coverage, or with individually selectable segments to "shape" the coverage. Time-delay is added continually: when it receives the second induction signals after the first induction, it will compute time once more on the rest of the first time-delay basic (set time). time-delay adjustment: it can be set according to the consumer’s desire. the minimum time is 10sec±3sec. the maximum is 7min±2min. Can identify day and night: the consumer can adjust work ambient light. it can work in the daytime and at night when it is adjusted on the “sun” position (max). it can work in the ambient light less than 10lux when it is adjusted on the “moon” position (min). as for the adjustment pattern, please refer to the testing pattern. Infrared motion sensors are typically straightforward to install. Before installation, however, it is important to familiarise yourself with the particular sensor's range. This will help you to plan an effective coverage system and ensure the entire area that needs covering will be monitored. PIR sensors, at their most fundamental level, work by detecting positive differential change. Two infrared-sensitive slots are located in front of the lens, and the range of detection is determined by the slots’ field of “vision”. While both slots are ‘idle’, the ambient amount of infrared sensed in the room (which is naturally emitted by all items) is the same on both slots while they are ‘active’. When an object, person, or animal moves through the detecting region, it is sensed by one of the slots before the other, creating a positive differential change as it passes through and a negative differential change as it exits.

The qwyeuro advantage:high-quality switches specially designed for the home, the lights come on when people come, and the lights go off when people walk off, reducing energy waste PIR-based motion detector edit A PIR motion detector used to control an outdoor, automatic light. A camera trap with PIR motion detector. An indoor light switch equipped with PIR-based occupancy sensor [1] Designs have been implemented in which a PIR circuit measures the temperature of a remote object. [6] In such a circuit, a non-differential PIR output is used. The output signal is evaluated according to a calibration for the IR spectrum of a specific type of matter to be observed. By this means, relatively accurate and precise temperature measurements may be obtained remotely. Without calibration to the type of material being observed, a PIR thermometer device is able to measure changes in IR emission which correspond directly to temperature changes, but the actual temperature values cannot be calculated.

How do PIR Sensors Work?

PIR (passive infrared) sensors utilise the detection of infrared that is radiated from all objects that emit heat. This type of emission is not visible to the human eye, but sensors that operate using infrared wavelengths can detect such activity. They are sometimes referred to as ‘motion-based detectors’, as they sense the presence of people, animals and objects through the movement of their infrared wavelengths.