Moisture senstors

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  • Float switch magnetic NO

      Float switch magnetic NO
    Magnetic float switch. When the float is lifted by liquid, the contact closes inside the switch. Very durable and resistant to most liquids. * Material: polypropylene * Switch function: 1-pole closing (NO) * Switch rating: 200VAC / 0.5A * Dimensions: 23.7 x 43.7mm * Cable length: 500mm 41015325
    Currently not in stock

  • Flödesmätare 1-30l/m 1/2"

      Flödesmätare 1-30l/m 1/2"
    Flow sensor for liquids with 1/2" pipe connections. The output from the sensor consist of a pulse train which frequency is proportional to the flow through the sensor. The wires are terminated with a regular 2.54mm pitch connector for 0.64mm pins. * Supply voltage: 5 - 24VDC * Operating current: 15mA (5V) * Measurable flow: 1 - 30 liters per minute * Max. liquid temperature: 120°C * Max. working pressure: 1.75MPa * Pipe connector: 1/2" * Dimensions: 63 x 35 x 36mm 41016072
    In stock: 5 

  • Rain sensor

      Rain sensor
    Sensor for detecting rain drops and splashing water. The sensor is made up of two parts, one sensor board and one amplifier. The sensor is made from a circuit board with interleaved traces that, when exposed to water, will start to conduct. The amplifier transforms the changes in resistance into a voltage that can be measured with a microcontroller. A trimmer is available for adjusting the sensitivity. Two simultaneous outputs provide a digital signal that is either low (no water) or high (much water) and one analog output where the voltage is dependent on the amount of water. 41015744
    In stock: 62 

  • Soil hygrometer module

      Soil hygrometer module
    Sensor for measuring the moisture level in soil, for instance a potted plant. The sensor works by passing a current from one leg of the sensor to the other. If the soil is dry, the resistance is high and if the soil is wet, the resistance drops. The on-board amplifier converts the resistance to a voltage that is presented on the analog output. There is also a digital output available that indicates dry or wet. The digital output has an adjustable threshold using the trim potentiometer. 41015738
    In stock: 55 

  • Soil moisture sensor

      Soil moisture sensor
    Octopus Soil Moisture Sensor Brick can read the amount of moisture present in the soil surrounding it. It's a low tech sensor, but ideal for monitoring an urban garden, or your pet plant's water level. This is a must have tool for a connected garden! This sensor uses the two probes to pass current through the soil, and then it reads that resistance to get the moisture level. More water makes the soil conduct electricity more easily (less resistance), while dry soil conducts electricity poorly (more resistance). It will be helpful to remind you to water your indoor plants or to monitor the soil moisture in your garden. The Freaduino Sensor Shield is the perfect shield to connect this senor to Arduino. Or Freaduino UNO which we had pre-stray Octopus Brick interface. Specification Power supply: 3.3v or 5v Output voltage signal: 0~4.2v Current: 35mA Pin definition: Analog output(Yellow wire) GND(Black wire) Power(Red wire) 41015606
    In stock: 43 
    1 - 36.00
    10 - 32.40
    25 - 27.00

  • Temp/humidity sensor SHT15 pcb

      Temp/humidity sensor SHT15 pcb
    This is a simple breakout board for the SHT15 humidity sensor from Sensirion. The SHT15 digital humidity and temperature sensor is fully calibrated and offers high precision and excellent long-term stability at low cost. The digital CMOSens Technology integrates two sensors and readout circuitry on one single chip. These sensors are really impressive! Very sensitive and straight forward to use. Board comes assembled and tested with the SHT15. Features: 2 factory calibrated sensors for relative humidity & temperature Digital 2-wire interface Precise dewpoint calculation possible Measurement range: 0-100% RH Absolute RH accuracy: +/- 2% RH (10...90% RH) Repeatability RH: +/- 0.1% RH Temp. accuracy: +/- 0.3°C @ 25°C Fast response time Low power consumption (typ. 30 µW) Low cost High precision sensor at low cost Leading CMOSens Technology for superior long-term stability Applications: Precise data logging Transmitters Automation & process control Building control and HVAC Test & Measurement Medical 41002893
    In stock: 1 

  • Water level sensor

      Water level sensor
    The eTape Liquid Level Sensor from Milone Technologies is a great way to measure the level of a liquid. It has a resistive output that varies with the level of the fluid. It does away with clunky mechanical floats, and easily interfaces with electronic control systems. The sensor's envelope is compressed by the hydrostatic pressure of the fluid in which it is immersed. This results in a change in resistance that corresponds to the distance from the top of the sensor to the surface of the fluid. The sensor's resistive output is inversely proportional to the height of the liquid: the lower the liquid level, the higher the output resistance; the higher the liquid level, the lower the output resistance. 41009824
    In stock: 3