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The emitter is an IR LED and the detector is an IR photodiode. The IR phototdiode is sensitive to the IR light emitted by an IR LED. The photo-diode’s resistance and output voltage change in proportion to the IR light received. This is the underlying working principle of the IR sensor.
IR Sensor(Photodiode)
NPR 19.00 -
Photo resistors, also known as light dependent resistors (LDR), are light sensitive devices most often used to indicate the presence or absence of light, or to measure the light intensity.
LDR Sensor
NPR 25.00 -
Thyristor is a solid-state semiconductor device with four layers of alternating N and P-type material. It acts exclusively as a bistable switch, conducting when the gate receives a current trigger, and continuing to conduct while the voltage across the device is not reversed (forward-biased). It is one of the several controllable semi conductor devices that can act either like a switch, rectifier or as a voltage regulator.
Thyristor / Thermistor
NPR 30.00 -
Reed switches are magnetically-actuated electrical switches (not magically-actuated, though it seems that way sometimes). When the body of the switch is exposed to a magnetic field – like a magnet or even a strong electrical current – two ferrous materials inside pull together, the connection closes, and current can flow. In absence of a magnetic field, the switch opens as does the circuit it’s a part of.
Reed Switch
NPR 30.00 -
Technical specification
Supply: 5 V
Power consumption: 0.4 to 1.0 mA
Min. Ee irradiation: 0.35 mW/m2 typ.
Angle of detection: 90
Temperature range: -25 C to +85 CTSOP1838 IR Receiver
NPR 40.00 -
The TCRT5000 are reflective sensors which include an infrared emitter and phototransistor in a leaded package which blocks visible light. The package includes two mounting clips.TCRT5000 sensor works with the general infrared sensor, like a sense of a TCRT5000 has an infrared emission tube and an infrared receiver tube.TCRT5000 Reflective Infrared Optical Sensor
NPR 75.00 -
This sensor uses an infrared emitted diode combined with an infrared phototransistor to detect the reflected infrared signal. Ideal for sensing black-to-white transitions or can be used to detect nearby objects (.5-1cm)
QRD 1114 (Optical Detector / Photo-transistor)
NPR 99.00 -
The TTP223 is a touch pad detector IC which offers 1 touch key. The touching
detection IC is designed for replacing traditional direct button key with diverse pad size.
Capacitive touch allows electronics to sense when your finger is within a few millimetres
of a surface to simulate a button “press” just like how the pushbutton works. Capacitive
sensing may be used in any place where low to no force human touch sensing is
desirable.TTP223B Digital Touch Sensor
NPR 250.00 -
TMP36 is a wide range, low power temperature sensor that outputs an analog voltage that is proportional to the ambient temperature.
TMP36 Temperature Sensor
NPR 250.00 -
A passive infrared sensor (PIR sensor) is an electronic sensor that measures infrared (IR) light radiating from objects in its field of view. They are most often used in PIR-based motion detectors.
For most of our Arduino projects that need to detect when a person has left or entered the area, or has approached, HC-SR501 PIR sensors are a great choice. They are low power and low cost, pretty rugged, have a wide lens range, easy to interface with and are insanely popular among hobbyists.
HC-SR501 PIR sensor has three output pins VCC, Output and Ground as shown in the diagram below. It has a built-in voltage regulator so it can be powered by any DC voltage from 4.5 to 12 volts, typically 5V is used. Other than this, there are a couple options you have with your PIR.
PIR Sensor HC-SR501
NPR 250.00 -
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- Detection angle about 60 degrees, it is sensitive to the flame spectrum.
- Accuracy adjustable
- Operating voltage 3.3V-5V
- With a mounting screw hole
- Comparator chip LM393 ,it is stable.
- Flame detection distance, lighter flame test can be triggered within 0.8m, if the intensity of flame is high , the detection distance will be increased.
IR Infrared Flame Detection Sensor Module
NPR 320.00 -
The vibration sensor module based on the vibration sensor SW-420 and Comparator LM393 is used to detect vibrations. The threshold can adjust using an on-board potentiometer. During no vibration, the sensor provides Logic Low and when the vibration is detected, the sensor provides Logic High.
Vibration Sensor Module
NPR 350.00 -
-22%
Barometric Pressure sensor measures the absolute pressure of the air around it. This pressure varies with both the air and altitude. Depending upon the interpretation of the data, changes in the weather can be monitored, altitude can be measured, and any task can be done that requires the accurate pressure measurement.
BMP 180 (Pressure Sensor)
NPR 350.00 -
Specifications:
Material: ABS
Dimension: approx. 27 x 14 x 8(mm)
Switch pattern: N/O normally open, alarm-on-broken
Voltage: 100V DC Rated power: 10W
Actuation distance: 15-25mm Wire lead: 24 Awg, about 350mm long
Mounting method: SMD (by screws or double-sided tapes)
Recommendations in application: wooden door, window
Features:
Easy installation
Reliable performance
Good characteristic of abrasion-proof
Best Choice for you to protect family
There are two types of reed switches: “normally open” reed switches and “normally closed” reed switches. The metal reeds on a normally open switch stay open when there is no magnet near the switch. In the presence of a magnetic field, the contacts of a normally-open reed switch will close. A normally-closed reed switch is closed when it is not near a magnet; as a magnet is brought close to it, a normally-closed switch will open
Wired Door Window Sensor Magnetic Switch
NPR 400.00
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