Sensor
QB002/QB071 DHT11 Humidity Temperature Sensor
Last Updated: March 2, 2026Product Introduction DHT11 Temperature and humidity sensor is a sensor based on the digital temperature and humidity sensor DHT11, it is a combination of temperature and humidity sensor, it converts the physical temperature and humidity through the temperature, humidity sensor and the corresponding circuit into a digital quantity that is convenient for data acquisition equipment...
QB003 Temperature Sensor
Last Updated: March 2, 2026Product Introduction Temperature sensor is a device used to measure the temperature of an environment or object. They can convert the temperature into an electrical signal or a digital signal, this product uses a thermistor MF52A103J3435 temperature sensor. Thermistors generally come in two types. Positive temperature coefficient (PTC) : With the increase of temperature, the...
QB039/QB079 Sound Sensor
Last Updated: February 4, 2026Product Introduction Sound sensor is a sensor used to detect the strength or frequency of sound signals in the environment. Sound is essentially a kind of mechanical wave, which is generated by the vibration of the object caused by the vibration of the surrounding medium (such as air, water, etc.) molecules, and then form sound...
QB040/QB072 Moisture Sensor
Last Updated: March 2, 2026Product Introduction Soil moisture sensor is a sensor used to detect soil moisture, which can sense the soil condition in time to make plants grow better. The soil moisture sensor is to insert two probes into the soil, and then as the current passes through the soil, the sensor obtains the resistance value by reading...
QB041/QB066 PIR Motion Sensor
Last Updated: March 2, 2026Product Introduction Human infrared sensor is used to detect the infrared radiation emitted by the human or animal body module, when someone or other hot objects enter the sensor’s sensing range, the object will cause changes in the infrared radiation. Its characteristic is that only when the external radiation causes its own temperature to change,...
QB042/QB093 Ultrasonic Sensor
Last Updated: March 2, 2026Product Introduction Ultrasonic sensor is a sensor used to measure distance, can be used to help the car to avoid obstacles or other related distance obstacle avoidance projects. The ultrasonic transmitter emits ultrasonic waves in a certain direction, at the same time the timer starts timing, ultrasonic waves spread in the air, on the way...
QB043/QB069 Raindrop Sensor
Last Updated: March 2, 2026Product Introduction Raindrop sensor is a device used to detect the falling of raindrops, which is commonly used in automotive, smart home, and meteorological fields. It can sense the presence of precipitation and trigger the corresponding operation or feedback. The working principle of the raindrop sensor is to use the resistance between two electrodes to...
QB050 Photoelectric Sensor
Last Updated: March 2, 2026Product Introduction Photoelectric sensor are commonly used to detect the presence, position, or motion of an object. It consists of a transmitter, which generates an infrared beam, and a receiver, which receives the infrared beam. When the middle is blocked, the receiver cannot receive the light signal, so as to detect the presence or movement...
QB055/QB084 MQ-4 Gas Sensor
Last Updated: March 2, 2026Product Introduction MQ-4 gas sensor is a combustible gas sensor, which can detect the concentration of combustible gas in the environment. Its working principle is based on the change of electrical properties of semiconductor gas sensitive materials. When there is combustible gas (such as methane, propane, butane, etc.), the gas sensitive materials inside the sensor...
QB011/QB083 Flame Sensor
Last Updated: March 2, 2026Product Introduction The flame sensor can detect light sources with wavelengths ranging from 760 nm to 1100 nm to detect fire sources or other radiation sources. Its working principle is based on the flame in the combustion process, will emit a specific frequency of infrared radiation and visible light, using a special infrared receiver tube...