--- product_id: 118205517 title: "3/8\" Quick Connect Water Flow Sensor Food-Grade Switch Hall Effect Flowmeter Fluid Meter Counter 0.3-10L/min" brand: "gredia" price: "220 kr" currency: NOK in_stock: true category: "Gredia" url: https://www.desertcart.no/products/118205517-3-8-quick-connect-water-flow-sensor-food-grade-switch store_origin: NO region: Norway --- # DC 5-24V wide voltage compatibility 0.3-10L/min flow range Food-grade, ROHS-certified materials 3/8" Quick Connect Water Flow Sensor Food-Grade Switch Hall Effect Flowmeter Fluid Meter Counter 0.3-10L/min **Brand:** gredia **Price:** 220 kr **Availability:** ✅ In Stock ## Summary > 💧 Flow smarter, not harder — precision you can trust every drop! ## Quick Answers - **What is this?** 3/8" Quick Connect Water Flow Sensor Food-Grade Switch Hall Effect Flowmeter Fluid Meter Counter 0.3-10L/min by gredia - **How much does it cost?** 220 kr with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.no](https://www.desertcart.no/products/118205517-3-8-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 - • **Robust & Safe:** Food-grade plastic with ROHS compliance guarantees purity and durability - • **Leak-Proof Design:** Sealing ring technology prevents water leakage, protecting your system - • **Versatile Application:** Ideal for coffee machines, water purifiers, beverage dispensers & more - • **Precision Flow Control:** Accurate ±2% measurement ensures flawless fluid monitoring - • **Universal Quick Connect:** Fits G3/8 inch tubes for seamless integration in your setup ## Overview This 3/8" Quick Connect Water Flow Sensor features a hall effect flowmeter with a precise 0.3-10L/min range and ±2% accuracy. Designed with food-grade, ROHS-certified plastic, it supports DC 5-24V operation and up to 0.8Mpa water pressure. Its leak-proof sealing ring and compact size make it perfect for integration in water heaters, coffee machines, purifiers, and beverage systems, delivering reliable, hygienic fluid measurement with easy installation. ## 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=(21*Q)±2%, Q=L/Min, error: ±2% Working range: 0.3-10L/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: 60mm x 36mm x 28mm(L*W*H) Refer to the wiring: Red wire: VCC(+) Black wire: GND(-) Yellow wire: Signal output Package: 1 x G3/8 inch flowmeter quick connect ## Features - Connect to a G3/8 inch tube, hall effect - Flow range:0.3-10L/min, Water Pressure: ≤0.8Mpa - Working voltage: DC 5-24 V, F=(21*Q)±2%, 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 | B07MY7H45V | | Best Sellers Rank | #46,797 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #22 in Flowmeters | | Date First Available | January 19, 2019 | | Item Weight | 1.06 ounces | | Item model number | GR-301 | | Manufacturer | GREDIA | | Package Dimensions | 4.33 x 3.03 x 1.46 inches | ## Images ![3/8" Quick Connect Water Flow Sensor Food-Grade Switch Hall Effect Flowmeter Fluid Meter Counter 0.3-10L/min - Image 1](https://m.media-amazon.com/images/I/61B7mr+IAhL.jpg) ## Available Options This product comes in different **Size** options. ## Questions & Answers **Q: What is the K value for this sensor please?** A: The label on the sensor provides an "F" number that is the Hz for LITERS/minute; my search for a "K" value states that number is GALLONS/minute. A liter is VERY ROUGHLY a little less than a quart, so a K value should be roughly 4 (3.78541) times an F value. **Q: Is the output PWM or an analog output?** A: Hello, the output is PWM. **Q: would i be able to measure the flow through my drip irrigation with this? never measured but I'm guessing it might be less than .3l/min at times** A: I have three different models of Gredia's flowmeters and I found them to be inaccurate at low flow rates, I presume there is not enough force to spin the wheel ... F = ma. **Q: What is the output voltage on the yellow wire during .4 lpm flow if fed with 5VDC?** A: At 5vdc you should get >4.7vdc ## Frequently Bought Together - GREDIA 3/8" Quick Connect Water Flow Sensor Food-Grade Switch Hall Effect Flowmeter Fluid Meter Counter 0.3-10L/min - Beduan 12V 1/4" Inlet Water Solenoid Valve Normally Closed for RO Reverse Osmosis Pure System - GREDIA 3/8" DC 12V Solenoid Valve N/C Normally Closed Water Inlet Flow Switch --- ## 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.no/products/118205517-3-8-quick-connect-water-flow-sensor-food-grade-switch](https://www.desertcart.no/products/118205517-3-8-quick-connect-water-flow-sensor-food-grade-switch) --- *Product available on Desertcart Norway* *Store origin: NO* *Last updated: 2026-09-16*