--- product_id: 542296269 title: "1/2 ’’ Flow Hall Sensor with NPT Thread, 1-30L/Min Flow Meter, Flowmeter Counter, Arduino, Raspberry Pi, and Reverse Osmosis Filter Compatible" brand: "senstree" price: "€ 15.47" currency: EUR in_stock: true category: "Senstree" url: https://www.desertcart.pt/products/542296269-1-2-flow-hall-sensor-with-npt-thread-1-30l store_origin: PT region: Portugal --- # Hall effect sensor, water-sealed pulse output G1/2’’ NPT threaded easy install 1-30L/min precision flow range 1/2 ’’ Flow Hall Sensor with NPT Thread, 1-30L/Min Flow Meter, Flowmeter Counter, Arduino, Raspberry Pi, and Reverse Osmosis Filter Compatible **Brand:** senstree **Price:** € 15.47 **Availability:** ✅ In Stock ## Summary > 💡 Flow smarter, measure sharper — never miss a drop! ## Quick Answers - **What is this?** 1/2 ’’ Flow Hall Sensor with NPT Thread, 1-30L/Min Flow Meter, Flowmeter Counter, Arduino, Raspberry Pi, and Reverse Osmosis Filter Compatible by senstree - **How much does it cost?** € 15.47 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/542296269-1-2-flow-hall-sensor-with-npt-thread-1-30l) ## Best For - senstree enthusiasts ## Why This Product - Trusted senstree brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Versatile Application:** Ideal for coffee machines, water purifiers, beverage dispensers, and smart campus equipment—upgrade your setup effortlessly. - • **Precision Flow Control:** Accurately measures 1-30 liters per minute with ±2% error for reliable data-driven decisions. - • **Plug & Play Integration:** Seamlessly compatible with Arduino, Raspberry Pi, and reverse osmosis systems for smart automation. - • **Durable & Compact Design:** Lightweight, nimble outline with robust bearings ensures long-lasting performance under 1.75 Mpa pressure. - • **Waterproof Magnetic Sensor:** Hall effect sensor sealed from water keeps signals clean and sensor dry, maximizing lifespan. ## Overview The SENSTREE G1/2’’ Flow Hall Sensor is a compact, high-precision flow meter with a 1-30L/min range and integrated magnetic hall effect sensor. Featuring a durable NPT threaded design, it outputs reliable pulse signals compatible with Arduino, Raspberry Pi, and reverse osmosis filters. Engineered for diverse applications like water heaters and beverage machines, it offers ±2% accuracy, waterproof sensor protection, and easy installation, making it a must-have for smart water management. ## Description SENSTREE G1/2 ’’ Flow Hall Sensor with NPT thread, 1-30L/Min Flow Meter, Food Grade Flowmeter Counter, Arduino, Raspberry Pi, and Reverse Osmosis Filter CompatibleSpecifications: Frequency: F=7.5 * Q (L / Min) error: ± 2% , current can not exceed 10mA, 450 output pulses/liters. F=onstant * units of flow (L / min) * time (seconds) Flow range:1-30L/minMaximum current:10 mA(DC 5V) Working voltage range: DC 5-18 VLoad capacity: ≤10 mA(DC 5V) Operating Temp: ≤80℃. Operating humidity: 35%-90%RHAllow compression: Water pressure 1.75 Mpa belowInsulation resistance: >100M OHMStorage Temperature: -25-80℃Storage humidity: 25%-95%RHOutput Waveform: square wave, output pulse signal. Cable length:15cm. It is mainly used in water heaters, coffee machines, water purifiers, drinking fountains, beverage machines, campus smart card equipment, etc. Refer to the wiring: Red wire: VCC(+)Black wire: GND(-)Yellow wire: Signal output ## Features - NPT Thread - 1-30L/min - The Water Flow Sensor is light, has a nimble outline, small, and is easy to install—the bearings used in the rotating part. - There is an integrated magnetic hall effect sensor that outputs an electrical pulse with every revolution. The hall effect sensor is sealed from the water pipe and allows the sensor to stay safe and dry. - Installed by flow direction in the product, otherwise, there is no signal output. - It is mainly used in water heaters, coffee machines, water purifiers, drinking fountains, beverage machines, campus smart card equipment, etc. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0CC949527 | | Best Sellers Rank | #68,279 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #44 in Flowmeters | | Date First Available | July 19, 2023 | | Item Weight | 1.76 ounces | | Manufacturer | SENSTREE | | Package Dimensions | 3.23 x 2.4 x 1.46 inches | ## Images ![1/2 ’’ Flow Hall Sensor with NPT Thread, 1-30L/Min Flow Meter, Flowmeter Counter, Arduino, Raspberry Pi, and Reverse Osmosis Filter Compatible - Image 1](https://m.media-amazon.com/images/I/51BtxVE-lxL.jpg) ## Frequently Bought Together - SENSTREE G1/2 ’’ Flow Hall Sensor with NPT Thread, 1-30L/Min Flow Meter, Flowmeter Counter, Arduino, Raspberry Pi, and Reverse Osmosis Filter Compatible - CQRobot TDS (Total Dissolved Solids) Meter Sensor Compatible with Raspberry Pi/Arduino Board. for Liquid Quality Analysis Teaching, Scientific Research, Laboratory, Online Analysis, etc. - BOJACK DS18B20 Temperature Sensor Module Kit with Waterproof Stainless Steel Probe for Raspberry Pi --- ## 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.pt/products/542296269-1-2-flow-hall-sensor-with-npt-thread-1-30l](https://www.desertcart.pt/products/542296269-1-2-flow-hall-sensor-with-npt-thread-1-30l) --- *Product available on Desertcart Portugal* *Store origin: PT* *Last updated: 2026-09-16*