The YFS403 5-18V Water Flow Sensor mainly consists of a plastic valve, water flow rotor assembly, and a Holzer sensor. The rotation of the magnetic rotor and the rotating speed change with the change of the flow rate, and the output of the Holzer sensor is corresponding to the pulse Signal, feedback to the controller, by the controller to determine the size of the water flow, control.

It is installed in the hot water inlet end for detecting water flow. When water through the flow rotor assembly, the magnetic rotor will rotate and Speed will change as the flow change. Hall current sensor output corresponding pulse signal and feedback to the controller, then the controller will control the flow. Can be used for water heaters, credit card machines, water vending machine, flow measurement device.

Wire Connections:

• Red: Positive(+)
• Yellow: Signal output.
• Black: Negative(-)

Applications
This product can be used in water heating systems, automatic water dispensers, and other flow metering equipment.

Features:

1. Lightweight, small size, easy to install.
2. Inlaid with stainless steel impeller shaft, durable wearable.
3. The seal ring with the upper and lower force structure never leaks.
4. Non-violent shock, and chemical erosion.
5. Non-throwing or hitting.
6. Mounted vertically, should not exceed 5 degrees inclination.
7. The temperature of the medium should not exceed 120 ℃.

Package Includes:

1 x YFS403 5-18V Water Flow Sensor Flowmeter G3/4 1- 30L/Min

A cable Float Switch is a control device for automatic On/Off pumps, motors,s and magnetic valves. It is also an alarm device at certain pre-determined surface levels. It is suitable for use in non-flammable liquids at 250 volts. In potentially explosive atmospheres (e.g. oil tanks) the Switch can be used in conjunction with (Ex) I-isolator switch units. Due to its large float casing, the float Switch has a buoyancy that guarantees smooth, trouble-free operation under all conditions. The switch has a double chamber and a final remolding finish to make it absolutely hermetic.

Features: 

1. It can test the pressure of the liquid
2. The float switch is a switch that regulates fluid level in the tank or well etc
3. The float switch is resistant to water(sewage water) it is relatively capable of being used for oil, most acids and alkalis
4. The float switch is not explosion-proof

Package Includes:

1 x Square 3 M Float Switch For Industry Pump Tank Sensor

This contactless capacitive  Externally attachable Liquid Level Sensor can use to detect liquid levels without dipping/touching the liquid. you just need to stick the sensor to the external body of the tank where you need the alert.

Features:

1. The miniature design allows for installation in areas where space is limited.
2. They are solid state, with no moving parts, unlike mechanical switches where debris can get jammed and cause unreliability.
3. Cost-effective.
4. A wide variety of power output is available, allowing the sensor to switch lower power equipment directly, eliminating the need for costly interfaces
5. Easy to install, saving assembly time.
6. Very robust which permits use in a wide range of fluids.
7. Housings, cabling, and connectors are made to your requirements

Package Includes:

1 x 24V Capacitive Contactless Externally Liquid Level Sensor

Are you trying to find an easy to use and cost-effect PH sensor/meter? Do you want to use a PH sensor/meter with Arduino or Raspberry Pi? Well, this new Grove – PH Sensor will meet all your needs. The PH sensor measures the hydrogen-ion activity in water-based solutions, we usually use it to measure the PH of a liquid. It is widely used in the chemical industry, the pharmaceutical industry, the dye industry, and scientific research where acidity and alkalinity testing is required. The drive board in this kit support both 3.3V and 5V system. And with the stander BNC probe interface and Grove connector, it is very convenient to work with Arduino and Raspberry Pi.

Cautions: 

1. Before being measured, the electrode must be calibrated with a standard buffer solution of known PH value. In order to obtain more accurate results, the known PH value should be reliable, and closer to the measured one.
2. When the measurement is completed, the electrode protective sleeve should be put on. A small amount of 3.3mol / L potassium chloride solution should be placed in the protective sleeve to keep the electrode bulb wet.
3. The leading end of the electrode must be kept clean and dry to absolutely prevent short circuits at both ends of the output, otherwise, it will lead to inaccurate or invalid measurement results.
4. After long-term use of the electrode, if you find that the gradient is slightly inaccurate, you can soak the lower end of the electrode in 4% HF (hydrofluoric acid) for 3-5 seconds, wash it with distilled water, and then soak in potassium chloride solution to make it new.

Features:

1. Widely used in the chemical industry, pharmaceutical industry, dye industry, and scientific research
2. Support with both Arduino and Rasberry Pi
3. Compact size for easy deployment and cost-effective
4. Resolution: at most ±0.15PH (STP)
5. Probe replaceable

Package Includes:

1 x Refurbished – SeeedStudio Grove PH Sensor Kit (E201CBlue ) Kit

kit Includes:

• 1 x PH prober
• 1 x Grove cable
• 1 x Driver Board
• 1 x Saturated sodium chloride solution

A cable Float Switch is a control device for automatic On/Off pumps, motors,s and magnetic valves. It is also an alarm device at certain pre-determined surface levels. It is suitable for use in non-flammable liquids at 250 volts. In potentially explosive atmospheres (e.g. oil tanks) the Switch can be used in conjunction with (Ex) I-isolator switch units. Due to its large float casing, the float Switch has a buoyancy that guarantees smooth, trouble-free operation under all conditions. The switch has a double chamber and a final remolding finish to make it absolutely hermetic.

Features: 

1. It can test the pressure of the liquid
2. The float switch is a switch that regulates fluid level in the tank or well etc
3. The float switch is resistant to water(sewage water) it is relatively capable of being used for oil, most acids and alkalis
4. The float switch is not explosion-proof

Package Includes:

1 x Square 6M Float Switch For Industry Pump Tank Sensor

Conductivity is the reciprocal of an object’s resistivity. It represents a material’s ability to pass a current. In a liquid, conductivity is a measure of a solution’s ability to conduct electricity and can reflect the amount of dissolved or salinity of a water source, so it’s an important parameter in water quality monitoring. DFRobot Gravity: Analog Electrical Conductivity Sensor PRO(K=1) is specially used to measure the conductivity in aqueous solutions, and then to evaluate the water quality. These conductivity sensors are often used in hydroponics, aquaculture, environmental water detection, and other fields.

As an upgraded version of the analog electrical conductivity meter, this pro version has greatly improved probe endurance, which can be used in 24/7 conductivity monitoring. Besides, the integrated PT1000 platinum resistance thermometer makes it easier to measure the compensated temperature data.

Features:

1. Easier to measure the compensated temperature data
2. Plug-and-play, no solder required
3. The output signal is filtered by hardware and has low jitter.

Package includes:

1 x Industrial Grade Analog Electrical Conductivity Sensor PRO (K=1)