1 Inch Water Flow Sensor YF-G1 DN25 The YF-G1 water flow sensor is a device that is used to measure the flow rate of water. It consists of a turbine-type rotor that is placed in the water stream, and as the water flows past the rotor, it causes the rotor to spin. The sensor measures the speed of the rotor and converts it to a flow rate. The sensor has a digital output, which means that it provides a digital signal that can be read by a microcontroller or other host device. The water flow sensor is mainly composed of a plastic valve body, a water flow rotor assembly, and a Hall sensor. It is installed on the water inlet end of the water heater to detect the water flow rate. When the water passes through the water flow rotor assembly, the magnetic rotor rotates and the speed changes with the flow rate. The Hall sensor outputs the corresponding pulse signal and feeds it back to the controller. The device judges the size of the water flow and regulates it. Precautions for Use: Severe impact and chemical erosion are strictly prohibited. Throwing or collision is strictly prohibited. The temperature of the medium should not exceed 120 degrees If the water quality is too bad, please add a filter at the water inlet. Do not use beyond the flow range Applications: Water heaters Water vending machine Flow measurement device Automatic water dispenser Agriculture Food processing Coffee/Tea makers Water Management read our blog explaining the rain sensor working principle, which provides information about raindrop sensors and their working principle. Package Includes: 1 x Water Flow Sensor YF G1 Specifications: Sensor Type  Water Flow Sensor  Model  YF G1 Water Flow Sensor  Water pressure resistance = >2MPa Operating Temperature -20~85C Insulation resistance >100MΩ Dimensions  5 x 5 x 5 cms  Weight  50 grams

1.5 Inch Water Flow Sensor YF - DN40 The YF-DN40 water flow sensor is a device that is used to measure the flow rate of water. It consists of a turbine-type rotor that is placed in the water stream, and as the water flows past the rotor, it causes the rotor to spin. The flow sensor measures the speed of the rotor and converts it to a flow rate. The sensor has a digital output, which means that it provides a digital signal that can be read by a microcontroller or other host device. The sensor is commonly used in applications such as irrigation systems, water treatment plants, and industrial process control. It is often preferred over other types of flow sensors because it is easy to install and has a low cost. The YF-DN40 sensor is designed to be installed in a pipe with a diameter of 40mm or 1.57 inches. Package Includes: 1 x Water Flow Sensor YF - DN40 Specifications Sensor Type  Water Flow Sensor  Model  YF - DN40 Output voltage 5V Insulation resistance 100M Ohm Hydrostatic pressure <= 1.75MPa Dimensions  5 x 4 x 3cms  Weight  50 grams

1/2 Inch Brass Water Flow Sensor SEN-HZ21WI The SEN-HZ21WI water flow sensor is a device that is used to measure the flow rate of water. It consists of a turbine-type rotor that is placed in the water stream, and as the water flows past the rotor, it causes the rotor to spin. The sensor measures the speed of the rotor and converts it to a flow rate. The sensor has a digital output, which means that it provides a digital signal that can be read by a microcontroller or other host device. The sensor is commonly used in applications such as irrigation systems, water treatment plants, and industrial process control. It can easily measure water (liquid) flow in your application using this 1/2" Brass water flow sensor. This is a good quality flow sensor with a brass body and can be used for industrial and commercial applications. This half-inch water flow sensor is used extensively in various types of vending machines. Working of a Flow Sensor: The water flow sensor consists of a copper body, a water rotor, and a hall-effect sensor. When water flows through the rotor, the rotor rolls, its speed changes with different rates of flow. And the hall-effect sensor outputs the corresponding pulse signal. This water flow sensor is connected in line with the liquid whose flow rate has to be measured. There is a simple rotating wheel with a magnet and when the liquid flows the wheel is rotated and a hall effect sensor measures how many times the wheel is rotated and accordingly gives pulses. By counting the number of pulses you can easily calculate the flow rate as well as the amount of liquid dispensed. Note: When magnetic material is close to the sensor, its characteristics may vary. In order to avoid particle debris, the sensor must be installed after a filter. The flow sensor installation has to avoid strong vibration and shaking of the environment, so as not to affect the sensor's measurement accuracy. Applications: Widely used in water industrial fields Thermostatic water heaters Water purifiers Water dispensers Smart card equipment Coffee machines Electric hot water heater Gas water heater Instrument meter  Package Includes: 1 x SEN-HZ21WI Water Flow Sensor Specifications: Model  SEN-HZ21WI Water quality requirement Drinking water health standards, 0~80℃ Output level Rated voltage DC 5 Volt, high level ≥4.5 Volt, low level ≤ 0.5 Volt Flow characteristic F=10 Q-4, F: HZ, Q: L/min，±10% Cumulative flow conversion 1 Liter water = 553 pulses , accuracy: 10%

1/2 Inch Water Flow Sensor - YF-S201 The YF-S201 water flow sensor is a device that is used to measure the flow rate of water. It consists of a turbine-type rotor that is placed in the water stream, and as the water flows past the rotor, it causes the rotor to spin. The sensor measures the speed of the rotor and converts it to a flow rate. The sensor has a digital output, which means that it provides a digital signal that can be read by a microcontroller or other host device. The sensor is commonly used in applications such as irrigation systems, water treatment plants, and industrial process control. It is often preferred over other types of flow sensors because it is easy to install and has a low cost. Water flow sensors are installed at the water source or in pipes to measure the rate of flow and calculate the amount of water that has passed through the pipe. Water flow is measured in liters per hour or cubic meters. Working: 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. read more : What is a Water Sensor? The 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. 5V to 18V DC is required for supply voltage. Also, read our blog on the Water Level Sensor explaining the different types of water sensors, working, and applications. Connection details: Red wire : +5V Black wire : GND Yellow wire : PWM output.

1/2 Inch Water Flow Sensor SEN-HZ21WA The SEN-HZ21WA water flow sensor is a device that is used to measure the flow rate of water. It consists of a turbine-type rotor that is placed in the water stream, and as the water flows past the rotor, it causes the rotor to spin. The sensor measures the speed of the rotor and converts it to a flow rate. The flow sensor has a digital output, which means that it provides a digital signal that can be read by a microcontroller or other host device. The sensor is commonly used in applications such as irrigation systems, water treatment plants, and industrial process control. It is often preferred over other types of flow sensors because it is easy to install and has a low cost. The SEN-HZ21WA sensor is designed to be installed in a pipe with a diameter of 1/2 inch (12.7mm). A pinwheel inside the sensor moves as the liquid flows through the sensor. A hall effect sensor within the sensor senses the rotation of the pinwheel and outputs a digital pulse for every rotation. By counting the pulses from the sensor, you can easily sense liquid flow through the sensor. This allows easy interface to microcontroller, Arduino, Raspberry Pi, etc. Applications: Water testing Water cooling systems Measure liquid flow Package Includes: 1 x Water Flow Sensor SEN-HZ21WA Specifications: Sensor Type  Water Flow Sensor  Model  SEN-HZ21WA Test range 1~30L/min(m³/h) Max. Working current 15mA Working Voltage  DC 5V Working pressure 1.75MPa Hysteresis 0.01(%F.S.) Insulativity Insulation Resistance≥100MΩ Dimensions  57.8*37*37mm, G1/2 outside diameter Weight  25 grams

1/4 Inch Brass Water Flow Sensor SEN-HZ41WC The SEN-HZ41WC water flow sensor is a device that is used to measure the flow rate of water. It consists of a turbine-type rotor that is placed in the water stream, and as the water flows past the rotor, it causes the rotor to spin. The sensor measures the speed of the rotor and converts it to a flow rate. The sensor has a digital output, which means that it provides a digital signal that can be read by a microcontroller or other host device. The sensor is commonly used in applications such as irrigation systems, water treatment plants, and industrial process control. It is often preferred over other types of flow sensors because it is easy to install and has a low cost. Now easily measure water (liquid) flow in your application using this 1/4" Brass water flow sensor. This is a good quality flow sensor with a brass body and can be used for industrial and commercial applications. This 1/4 inch water flow sensor is used extensively in various types of vending machines. Note: When magnetic material is close to the sensor, its characteristics may vary. In order to avoid particle debris, the sensor must be installed after a filter. The flow sensor installation has to avoid strong vibration and shaking of the environment, so as not to affect the sensor's measurement accuracy. Applications: Widely used in water industrial fields Thermostatic water heaters Water purifiers Water dispensers Smart card equipment Coffee machine Package Includes: 1 x SEN-HZ41WC Water Flow Sensor Specifications: Water quality requirement Drinking water health standards, 0~80℃ Voltage/electric current DC 4.5 ～ 18 Volt, ≤15mA Output level Rated voltage DC 5 Volt, high level ≥4.5 Volt, low level ≤0.5 Volt Cumulative flow conversion 1 Liter water=1780 pulse, accuracy: 8%

1/4 Inch Water Flow Sensor YF - S402 The YF-S402 water flow sensor is a device that is used to measure the flow rate of water. It consists of a turbine-type rotor that is placed in the water stream, and as the water flows past the rotor, it causes the rotor to spin. The sensor measures the speed of the rotor and converts it to a flow rate. The sensor has a digital output, which means that it provides a digital signal that can be read by a microcontroller or other host device. The frequency of the pulses is proportional to the flow rate of the liquid passing through the sensor. That digital signal, whose frequency is in the range between 0Hz and 100Hz, can be read directly through one of the digital input/output pins of a microcontroller. ID 8.5mm / OD 11mm. The water flow sensor measures the rate of a liquid flowing through it. The YF-S402 water flow sensor consists of a plastic valve body, flow rotor, and hall effect sensor. It is usually used at the inlet end to detect the amount of flow. When liquid flows through the sensor, a magnetic rotor will rotate and the rate of rotation will vary with the rate of flow. The hall effect sensor will then output a pulse width signal. Connect it to a microcontroller and you can monitor multiple devices such as your coffee maker, sprinkler, or anything else, and control the water flow rate to suit your needs.

1/8 Inch Water Flow Sensor YF-S401  The YF-S401 Water flow sensor is a small device comprising a plastic valve body, a water rotor, and a hall effect sensor. As water flows through the Water flow sensor, the internal rotator changes its speed in accordance with the rate of flow, and the hall effect sensor outputs a series of digital pulses. This allows the flow rate to be accurately measured using a microcontroller.This Water flow sensor is ideal for use with laser cutters or CNC machines to monitor the flow of water through the laser tube or spindle for cooling. This Water Flow Sensor has a flow rate of 0.3-6 litres per minute and outputs a pulse for every revolution of the pinwheel sensor. These pulses are approximately 2.25 millilitres each and can be easily counted to calculate the water flow.One of the key advantages of the YF-S401 Water flow sensor is that the hall effect sensor is sealed from the water pipe, ensuring it stays safe and dry. This makes it a reliable and accurate option for measuring water flow in various applications. Connections: Red: Power In Black: Ground Yellow: Signal Output Applications: Water heaters Water vending machine Flow measurement device Automatic water dispenser Agriculture Food processing Coffee/Tea makers Water Management Package Includes: 1 x YF-S401 1/8 inch Water Flow Sensor Specifications: Model  YFS401  Working Voltage  DC 5V~24V Maximum Working Current 15mA @ 5V DC Flow Rate Range 0.3~6L/min Connection 6mm (external diameter) Inlet Water Pipe Diameter 2.5-4mm Dimensions  5 x 4 x 3cms  Weight  15 grams

100A YHDC Non-invasive AC Current Sensor The YHDC SCT-013-000 is a non-invasive AC Current Sensor. This means that the non-invasive AC current sensor is a current transformer that can be used to measure AC current up to 100 amperes.  This is SCT 013 000 100A Non-invasive AC Current Sensor Split Core Type Clamp Meter Sensor. SCT-013-000 is a Non-Invasive AC sensor i.e., it is a current transformer that can be used to measure AC up to 100 amperes. This Current sensor comes with good quality Current transformers (CTs) are sensors for measuring alternating current. They are particularly useful for measuring whole building electricity consumption (or generation for that matter). The split-core type such as the SCT-013-000 CT in the picture is particularly suitable for DIY use. Clip this SCT 013 000 straight onto either the live or neutral wire coming into the building without having to do any high voltage electrical work. Current Transformer sensors can be used to measure the building's electricity consumption. These transformers have a primary winding, magnetic core, and secondary winding. The secondary winding comprises many turns of fine wire housed within the casing of the transformer.

100K ohm NTC 3950 Thermistor The 3950 NTC Thermistor is a thermally sensitive resistor and the special feature of these 100K ohm thermistors is that they exhibit a large change in resistance with only a small change in temperature. The thermistor is ideally used as a temperature sensor for 3D Printer Reprap. NTC is also known as the Negative Temperature Coefficient. These thermistors are widely used as inrush current limiters, temperature sensors, self-resetting overcurrent protectors, and self-regulating heating elements. This Thermistor 100k NTC with 1 Meter Cable Temperature Sensor for 3D Printer Reprap. The thermistor is a thermally sensitive resistor known for exhibiting a large change in resistance with only a small change in temperature. It is important to note that a thermistor's change in resistance is non-linear. It follows a pre-defined curve which is provided by the thermistor manufacturer. Positive thermal coefficient (PTC) will increase in resistance with an increase in temperature, and negative ones (NTC) will decrease. But the formula in practice is not linear, so sometimes an accurate table of measurements is better than the linear formula.  Package Includes: 1 x 100K Ohm NTC 3950 Thermistor   Specifications: Temperature range −40°C to 270°C Dissipation power factor ≥5 mW/℃ Cable Material NTC Thin Film Thermistor Max power rating 45 mW Hot Time constant ≤7 s