--- product_id: 110072333 title: "1/4\" Quick Connect Water Flow Sensor Food-Grade Switch Hall Effect Flowmeter Fluid Meter Counter 0.3-6L/min" brand: "gredia" price: "₹ 1642" currency: INR in_stock: true reviews_count: 3 category: "Gredia" url: https://www.desertcart.in/products/110072333-1-4-quick-connect-water-flow-sensor-food-grade-switch store_origin: IN region: India --- # Wide 5-24V voltage range Precise 0.3-6L/min flow range Quick connect G1/4" fitting 1/4" Quick Connect Water Flow Sensor Food-Grade Switch Hall Effect Flowmeter Fluid Meter Counter 0.3-6L/min **Brand:** gredia **Price:** ₹ 1642 **Availability:** ✅ In Stock ## Summary > 💧 Flow smarter, not harder — measure every drop with confidence! ## Quick Answers - **What is this?** 1/4" Quick Connect Water Flow Sensor Food-Grade Switch Hall Effect Flowmeter Fluid Meter Counter 0.3-6L/min by gredia - **How much does it cost?** ₹ 1642 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.in](https://www.desertcart.in/products/110072333-1-4-quick-connect-water-flow-sensor-food-grade-switch) ## Best For - gredia enthusiasts ## Why This Product - Trusted gredia brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Food-Grade Safety:** Crafted from ROHS-compliant, food-grade plastic ensuring purity and durability. - • **Leak-Proof Assurance:** Sealing ring guarantees firm connections, eliminating water leakage worries. - • **Effortless Integration:** Quick connect design for seamless installation in your smart water systems. - • **Precision Flow Tracking:** Hall effect sensor delivers ±3% accuracy for reliable real-time monitoring. - • **Versatile Voltage Compatibility:** Operates smoothly from 5V to 24V DC, perfect for diverse setups. ## Overview The 1/4" Quick Connect Water Flow Sensor is a compact, food-grade hall effect flowmeter designed for precise water flow measurement between 0.3 to 6 liters per minute. Featuring a quick-connect G1/4" fitting, it supports a wide DC voltage range (5-24V) and maintains ±3% accuracy, making it ideal for coffee machines, water purifiers, and smart water systems. Its leak-proof design and ROHS-compliant materials ensure safe, reliable operation in professional and home environments. ## Description Our products are fine made with nice materials and good workmanship, strict quality control, guarantee in after service. The flowmeter is light and handy, easy to install. The sealing ring make the connection firm, the sealing performance is good and the problem of water leakage is avoided. More details about the flow meter: F=(38*Q)±3%, Q=L/Min, error: ±3% Working range: 0.3-6L/min Working voltage: DC 5-24 V Water Pressure: ≤0.8Mpa Liquid temperature: 0-100℃ Maximum current consumption: 15 mA(DC 5V) Wire length: 15 cm Size: 54mm x 35mm x 28mm(L*W*H) Refer to the wiring: Red wire: VCC(+) Black wire: GND(-) Yellow wire: Signal output Package: 1 x G1/4 inch flowmeter quick connect Review: Works as expected. - I use it to sense the water flow of my RO system and trigger the UV light to sanitize the water. It worked as expected no complains. Review: I use it to track usage/flow rates for my RO unit. . Connected to a ESP8266 & works fine with 3.3v supply .. simply connect it directly to a GPIO pin. Programmed the ESP8266 using ESPhome & use InfuxDB to store the data, Grafana to display. For example, to measure L/hr configure ESPhome as follows: - platform: pulse_counter pin: GPIO5 name: "Pulse Counter" update_interval: 60s filters: - lambda: return (x / 38.0) * 60.0; unit_of_measurement: "L/hr" ## Features - Connect to a G1/4 inch tube, quick connector, hall effect - Flow range:0.3-6L/min, Water Pressure: ≤0.8Mpa - Working voltage: DC 5-24 V, F=(38*Q)±3%, Q=L/Min - Material: food grade plastic, all raw materials conform to the ROHS test standard - Wide application: It is mainly used in water heater, coffee machine, water purifier, drinking fountain, beverage machine, campus smart card equipment, etc. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07MY6XXYN | | Best Sellers Rank | #27,995 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #9 in Flowmeters | | Date First Available | January 19, 2019 | | Is Discontinued By Manufacturer | No | | Item Weight | 0.704 ounces | | Item model number | GR-402B | | Manufacturer | GREDIA | | Package Dimensions | 3.03 x 2.91 x 1.14 inches | ## Images ![1/4" Quick Connect Water Flow Sensor Food-Grade Switch Hall Effect Flowmeter Fluid Meter Counter 0.3-6L/min - Image 1](https://m.media-amazon.com/images/I/61z8BC1L+OL.jpg) ## Available Options This product comes in different **Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Works as expected. *by B***Y on August 30, 2024* I use it to sense the water flow of my RO system and trigger the UV light to sanitize the water. It worked as expected no complains. ### ⭐⭐⭐⭐⭐ Review *by A***A on January 18, 2021* I use it to track usage/flow rates for my RO unit. . Connected to a ESP8266 & works fine with 3.3v supply .. simply connect it directly to a GPIO pin. Programmed the ESP8266 using ESPhome & use InfuxDB to store the data, Grafana to display. For example, to measure L/hr configure ESPhome as follows: - platform: pulse_counter pin: GPIO5 name: "Pulse Counter" update_interval: 60s filters: - lambda: return (x / 38.0) * 60.0; unit_of_measurement: "L/hr" ### ⭐⭐ Review *by T***S on November 21, 2024* No envia ninguna senal de salida ## Frequently Bought Together - GREDIA 1/4" Quick Connect Water Flow Sensor Food-Grade Switch Hall Effect Flowmeter Fluid Meter Counter 0.3-6L/min - DIGITEN DC 12V 1/4" Inlet Feed Water Solenoid Valve Quick Connect N/C normally Closed no Water Pressure - DIGITEN 1/4 Quick Connect 0.3-10L/min Water Hall Effect Flow Sensor Meter --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.in/products/110072333-1-4-quick-connect-water-flow-sensor-food-grade-switch](https://www.desertcart.in/products/110072333-1-4-quick-connect-water-flow-sensor-food-grade-switch) --- *Product available on Desertcart India* *Store origin: IN* *Last updated: 2026-05-08*