Magnetic Float Sensor FSH01 (Horizontal) A magnetic float sensor FSH01 (horizontal) is a type of level sensor that is used to detect the level of a liquid in a tank or container. It consists of a float that contains a magnet, and a reed switch that is mounted on the side of the tank. As the float rises or falls with the level of the liquid, it activates or deactivates the reed switch by moving the magnet closer to or farther away from the switch. The FSH01 sensor is designed to be installed in a horizontal orientation, with the float and the reed switch positioned on the same plane. The sensor is often used in applications where the liquid level needs to be monitored or controlled, such as in sump pumps, water tanks, and overflow protection systems. It is typically used with liquids that are compatible with the materials used in the sensor, and it may have a maximum operating temperature and pressure rating. The Anti-Corrosion Water Level Sensor with Ball Float Switch is a device used to sense the level of liquid within a tank, it may actuate a pump, an indicator, an alarm, or another device. Use them in hydroponics, saltwater tank, freshwater tank, gardening, aquariums for power head control, pet bowls, fish tanks, filtration, heating, or whatever your project may be. read more : What is a Magnetic Float Sensor?

MC-38 Wired Magnetic House Security Alarm Sensor for Door and Windows MC-38 Wired Door Window Sensor Magnetic Switch Home Alarm System can be used as a door or window security system. It produces the signal when moved away from each other which can be fed to the microcontroller to perform the desired action as per requirement. This sensor is suitable to use for triggering an alarm or ON/OFF light inside a cupboard sliding door. This wired sensor is triggered by the magnet. When the magnet is closed by, the circuit is closed or open if the magnet is far from the sensor. This MC-38 Magnetic Contact Switch Sensor acts like a normal switch so, you can connect to the Ground(GND) pin too. Not necessarily connect to power supply. Note : Normally closed: When the magnet is together, the circuit is conductive( light on); when the magnet is separate, the circuit is not conductive ( light off ). For example: Install on the door, close door light on. open door light off. Applications: Doors Windows Sliding cupboards Home Security Projects

Metal Detector Sensor Module A metal detector sensor module is a device that uses electromagnetic induction to detect the presence of metal objects. The module typically consists of a transmitter coil that generates a magnetic field, and a receiver coil that detects changes in the magnetic field caused by the presence of metal. When a metal object comes into proximity of the sensor , it will disrupt the magnetic field and the sensor will generate an output signal indicating the presence of metal. These types of sensor can be used in a variety of applications, such as security systems, industrial automation, and even in hobby projects. The output can be digital or analog, some modules can even provide the depth of the metal. You can use this LC Metal detector non-contact metal induction detection module as a metal detector. When it approaches any metal, it makes a sound. This is a module specifically designed to detect metal. The module operates by inducing currents in metal objects and responding when it occurs. A nice onboard buzzer signals when it detects something and an onboard potentiometer allow adjustment of sensitivity. The power cables of the Metal detector sensor non-contact metal induction detection module will need soldering on for the module to function, positive to the outside of the module and negative between the potentiometer and an electrolytic capacitor. Features: “V+” ? Connect to power positive “V-” ? connect to power negative Adjust the potentiometer to vary the detection range and strength. Small and easy to use the module. It comes with a Buzzer for metal detection indication.

MetroQ MTQ 1010D Digital Lux Meter Over time, the lamps lose the intensity of light, and this light indicator can determine the time to change them. This gauge is ideal for measuring room lighting. The VDL Digital Light Meter serves to measure the amount of light emitted by the lamps. Extremely precise and easy to use, this unit has a large LCD screen. A product made of high quality material that can be used for several years. The measurement should be made 30 cm from the lamp.

MetroQ MTQ 3165 Digital Frequency Meter The instrument can measure frequency upto 2.4 GHz. It has a 8 digit display with dual channel signal input. It is an appropriate choice for various telecom and electronic applications. .

Mini USB Nebulizer Circuit The circuit board product voltage is MICRO USB 5V, current 300mA, power 2W, frequency 113KHz\108KHz, and special drive chip for fixed frequency atomizer. Immediately after power-on, the amount of output is large. With 8-hour timing function, an external switch can be used to control the opening and closing of the atomizer. These waves are used to create the mist that can be inhaled. The circuit sensor also likely includes a power supply, such as a 5VDC USB connection, to provide power to the transducer, and a control circuit to regulate the frequency of the ultrasonic waves, in this case, 108Khz. This type of nebulizer circuit is portable and can be powered by a USB connection, making it easy to use and carry around.

Mini UVC Disinfectant Sanitiser Stick Through UV Radiation, the DNA structure of a single-celled virus will be damaged. This will lead to virus of immediate death or reproduction capability. It usually takes 30 seconds for the effects of sanitisation to kick in. It has been proven that UV Sanitisation can destroy Influenza, Streptococcus pneumonia, Staphylococcus Aureus, Ecoli.

Mini Water Flow Sensor (White) A water flow sensor is made up of a plastic valve through which water can pass. A water rotor and a Hall effect sensor are used to sense and measure the flow of water. When water flows through the valve, it causes the rotor to rotate. The motor's speed can be changed as a result of this. The hall effect sensor calculates this change and outputs it as a pulse signal. The rate of flow of water can thus be measured. The Hall effect is the primary operating principle of this sensor. The rotation of the rotor induces a voltage difference in the conductor in this sensor, according to this principle. This induced voltage difference runs in the opposite direction of the electric current. When the moving fan rotates due to the flow of water, the rotor rotates, inducing a voltage. The hall effect sensor measures the induced voltage and displays it on the LCD display. The mini water flow sensor can be used with hot, cold, or warm water, as well as clean or dirty water. A microcontroller board such as Arduino , Raspberry pi , a LCD display or OLED Display , Breadboard and connecting wires are required for this. The sensor is installed at the water source inlet or the pipe opening. Three wires are connected to the sensor. The red wire connects to the supply voltage. A black wire connects to the ground, and a yellow wire collects the Hall effect sensor output. Key Features: Uses Hall effect technology to detect flow accurately. Operates between 3.5 and 18 volts DC. Provides 450 pulses per liter for accurate flow monitoring. Fluid flow ranges from 0.5 to 5 liters per minute. It is best suited for low to medium flow rates. Suitable for hot, cold, warm, clean, and unclean water. Compatible with microcontroller boards including Arduino and Raspberry Pi. Applications: This product can be used in water heating systems Automatic water dispensers Other flow metering equipment.

Mounting Bracket for HC-SR04 Ultrasonic Module Specifically designed for the HC-SR04 Ultrasonic Sensor Module, with this Ultrasonic Sensor Mounting Bracket you can attach the HC-SR04 module to your application such as small robots or DIY projects very quickly and conveniently. Note: This package does not include ultrasonic sensor.

MPR121 - 12 Channel Capacitive Touch Sensor Controller Module - I2C Interface The MPR121 12-Channel Capacitive Touch Sensor Controller Module is a capacitive touch sensor controller driven by an I2C interface. The chip can control up to twelve individual electrodes, as well as a simulated thirteenth electrode. This is a breakout board for NXP/ Freescale’s MPR121QR2. The MPR121 also features eight LED driving pins. When these pins are not configured as electrodes, they may be used to drive LEDs. There a four jumpers on the bottom of the board, all of which are set (closed) by default. An address jumper ties the ADD pin to ground, meaning the default I2C address of the chip will be 0x5A. If you need to change the address of the chip (by shorting ADD to a different pin), make sure you open the jumper first. Jumpers also connect SDA, SCL and the interrupt pin to 10k pull-up resistors. If you don’t require the pull-up resistors you can open the jumpers by cutting the trace connecting them. There is no regulation on the board, so the voltage supplied should be between 2.5 and 3.6VDC. The VREG pin is connected through a 0.1uF capacitor to ground, which means, unless you modify the board, you can’t operate the MPR121 in low-supply voltage mode (1.71-2.75VDC). Pin Diagram of MPR121-12 Channel Touch Sensor Module: