Soil Humidity / Moisture Sensor (New Type – Capacitive Sensor)
A soil moisture sensor can read the amount of moisture present in the soil surrounding it. It is ideal for monitoring garden, or your plant’s water level. This is a must have tool for a connected garden.
This new type capacitive soil humidity sensor differs from other resistive sensors, adopting capacitive sensing principle to detect soil humidity. Since the circuit is not exposed at the detected end, the corrosion problem of sensor is avoided, increasing the sensor operating life and measurments accuracy.
The built-in chip supports 3.3~5.5V working environment, Arduino, ESP32, micro:bit and controller. As to mini PC, you need an ADC module (analog signals are converted into signals).
EGP560.00
Specification
- Working voltage:Â 3.3 -5 V
- Working Current: <5ma
- Output: Analog signal
- Output voltage signal: 0~3V
- Working Temperature: 1℃~50℃
- Size:Â 23.8mm x 83mm
- Arduino compatible interface
- Low power consumption
- High sensitivity
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The analog signal output can be read directly to arduino
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The MQ-135 gas sensor senses gases like ammonia nitrogen, oxygen, alcohols, aromatic compounds, sulfide, and smoke.
The boost converter of the chip MQ-3 gas sensor is PT1301. The operating voltage of this gas sensor is from 2.5V to 5.0V. The MQ-3 gas sensor has a lower conductivity to clean the air as a gas sensing material. In the atmosphere, we can find polluting gases, but the conductivity of the gas sensor increases as the concentration of polluting gas increases. MQ-135 gas sensor can be implemented to detect the smoke, benzene, steam, and other harmful gases. It has the potential to detect different harmful gases. The MQ-135 gas sensor is a low co st to purchase.
This smoke sensor module with MQ2 Smoke sensor have both digital and analog outputs , you also can adjust the sensitivity with the potentioneter.
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So if you are looking for a sensor to detect or measure gasses like LPG, butane or methane with or without a microcontroller then this sensor might be the right choice for you.
This is an high flow oxygen sensor to measure oxygen concentration (percentage) and gas Volumetric Flow Rate. The sensor measures the gas temperature also. The Oxygen sensor in home and medical oxygen generator, PSA oxygen generator, anesthesia monitors, medical ventilator, breathing equipment, oxygen analyzer, hospitals, laboratories, combustion and environmental applications.
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Non-contact liquid level sensor can be used to provide external monitoring in liquid non-metallic material tubes, pipes and tanks such as plastic, glass, fiber-glass and ceramics. The thickness of the tube/pipe/tank/container should be less than 10mm. It is easy to use as a led is on when the liquid level reached and voltage is detected from sensor output.
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MQ-4 Sensor is highly sensitive to Methane – CH4.
Using a MQ sensor and detecting the gas is quite easy. You can either use the digital pin or the analog pin to accomplish this. Simply power the module with 5V and you should notice the power LED on the module to glow and when no gas is detected the output LED will remain turned off meaning the digital output pin will be 0V.
This water PH sensor is high quality, high precession, industrial standard water PH sensor. It is designed to be used in industrial applications such as water treatment facilities, rivers, lakes, peverage industry. The PH sensor equipped with 2 meter low noise cable. It is designed for low power consumption, long life and high measurement stability,
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