#d204b

Overview

D204B come standard with enhanced immunity to EMI (Electro-Magnetic Interference). It widely used in security system.

Senba PIR sensor can detect the wavelengths humans emit which is 8-10um, but Senba PIR can detect 7- 14um. It can be used in security and automation applications. For security applicance, PIR sensor are integrated into the alarm system. There are ceiling type and wall hanging type. For automation applications, PIR sensor can be integrated into the light control system, automatically turn on the light when somebody enter the detect rang, automatically turn off the light when sombody exit the detect range.

Features

Low Current Consumption

Simplified Circuitry with Fully Integrated Sensor

Wide angle

Applications

Sensor Switch

The PIR motion sensor adopts high-performance infrared detector. As long as human cross through its detection range, the infrared switch generates an electrical signals.

FAQ

1. Why is PIR sensor called passive?

The sensor is called passive because it doesn't emit light to get measurements. The sensor in PIR is actually split into two parts. The reason for that is to measure motion. ... The sensor is also sensitive enough to even detect IR radiation source movement while the object is already in it's field of view.

2. How far can a motion sensor detect?

D204B can detect up to distances of 8- 10M.

https://www.senbasensor.com/products/analog-output-3-15v-passive-infrared-sensor-d204b.html

http://www.senbasensor.com/non-contact-thermometer.html

Non-contact temperature measurement solution

 The traditional body temperature measurement is a contact measurement using a mercury thermometer, which has the advantages of stable performance and small error, but has the disadvantages of long measurement time, high risk of cross-contamination, and easy to cause mercury poisoning due to glass breakage.

 Infrared ear thermometer is the most commonly used thermometer. It can test body temperature with a slight amount of forehead or ear, and it can also prevent body infection. Infrared ear thermometer collects infrared radiation from ear cavity and tympanic membrane through infrared sensor. And converted into a digital signal, the main control CPU unit converts the digital signal into a temperature value and displays it on the LCD screen. Compared with mercury thermometers, infrared ear thermometers have the advantages of high precision, high resolution, fast measurement speed, easy operation, safety and comfort.

 Now the country is also banned from mercury production. I believe that the application of infrared ear thermometers will become more and more extensive in the future.