--- product_id: 534773345 title: "2Pcs YF-S201C DC3.5-24V G1/2\" Transparent Flow Sensor Turbine Flowmeter Water Flow Sensor Transparent Water Flow Meter YF-S201C Range 1-30L/min" price: "81 zł" currency: PLN in_stock: true reviews_count: 5 url: https://www.desertcart.pl/products/534773345-2pcs-yf-s201c-dc3-5-24v-g1-2-transparent-flow store_origin: PL region: Poland --- # Transparent valve body for visual flow check Wide DC3.5-24V voltage compatibility 1-30L/min flow range 2Pcs YF-S201C DC3.5-24V G1/2" Transparent Flow Sensor Turbine Flowmeter Water Flow Sensor Transparent Water Flow Meter YF-S201C Range 1-30L/min **Price:** 81 zł **Availability:** ✅ In Stock ## Summary > 💧 Flow with confidence—watch your water move in real time! ## Quick Answers - **What is this?** 2Pcs YF-S201C DC3.5-24V G1/2" Transparent Flow Sensor Turbine Flowmeter Water Flow Sensor Transparent Water Flow Meter YF-S201C Range 1-30L/min - **How much does it cost?** 81 zł with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/products/534773345-2pcs-yf-s201c-dc3-5-24v-g1-2-transparent-flow) ## Best For - Customers looking for quality international products ## Why This Product - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **See It in Action:** Transparent valve body lets you visually confirm rotor movement and flow status—no guesswork needed. - • **Plug & Play Versatility:** Compact, lightweight design with flexible voltage range (DC3.5-24V) fits seamlessly into diverse water flow systems. - • **Durable & Wear-Resistant:** Stainless steel beads embedded in the impeller provide long-lasting performance under continuous use. - • **Precision Flow Monitoring:** Accurately measures water flow from 1 to 30 liters per minute, ensuring reliable data for your projects. - • **Engineered for Professionals:** Ideal for water heaters, automatic dispensers, and flow metering setups—trusted by innovators and makers alike. ## Overview The JESSINIE YF-S201C is a compact, transparent turbine flow sensor designed for precise water flow measurement between 1-30L/min. Featuring a durable impeller with stainless steel beads and a wide operating voltage range (DC3.5-24V), it offers easy installation and real-time visual monitoring, making it a versatile choice for professional water flow applications. ## Description JESSINIE 2Pcs YF-S201C DC3.5-24V G1/2" Transparent Flow Sensor Turbine Flowmeter Water Flow Sensor Transparent Water Flow Meter YF-S201C Range 1-30L/min: desertcart.com: Industrial & Scientific Review: Worked well and gave proper sensor readings. - Perfect for what I needed. I was doing a project where I needed to calibrate a hall effect sensor. These were a nice stand in. Worked well, would recommend. Did not use it for a grow farm. Review: Total junk - I can not even begin to explain what a poece of junk these are, i just dropped one, it shattered, i teflon taped the hell out of one,still felt loose in 1/2 pvc, taped it like crazy even more, and it had a pin point hole in the plastic , finally wrapped up with half a role of teflon tape my first gallon through it 1700 pulses, next one 800ish pulses, i tried it al one flaow rate not adjusting itnat all oi got 900 pulses, then did the exact same thing and got 1500pulses. I dont know why you would have a flow sensor like this . Tital junk, i asked grok about ut , it said I ts junk. ## Features - The flow sensor mainly consists of a plastic valve body, a water flow rotor assembly, and a Hall sensor. - The product has a lightweight and flexible appearance, small size, and is easy to install. The impeller is internally inlaid with stainless steel beads, which is wear-resistant. Design of lines and isolation from water. - Valve body is made of transparent material to facilitate observation of water flow and rotor conditions. All raw materials meet testing standards. - Working voltage range: black version DC3.5-12V; Transparent DC3.5-24V; Load capacity: ≤ 10 mA (DC 5V); Allowable pressure resistance water pressure below 1.75Mpa - Scope of application: Suitable for water heaters, card readers, automatic water dispensers, and other flow metering equipment ## Technical Specifications | Specification | Value | |---------------|-------| | Customer Reviews | 3.9 out of 5 stars 10 Reviews | ## Images ![2Pcs YF-S201C DC3.5-24V G1/2" Transparent Flow Sensor Turbine Flowmeter Water Flow Sensor Transparent Water Flow Meter YF-S201C Range 1-30L/min - Image 1](https://m.media-amazon.com/images/I/61R0NH21HfL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Worked well and gave proper sensor readings. *by E***T on July 12, 2025* Perfect for what I needed. I was doing a project where I needed to calibrate a hall effect sensor. These were a nice stand in. Worked well, would recommend. Did not use it for a grow farm. ### ⭐ Total junk *by 1***Y on January 17, 2026* I can not even begin to explain what a poece of junk these are, i just dropped one, it shattered, i teflon taped the hell out of one,still felt loose in 1/2 pvc, taped it like crazy even more, and it had a pin point hole in the plastic , finally wrapped up with half a role of teflon tape my first gallon through it 1700 pulses, next one 800ish pulses, i tried it al one flaow rate not adjusting itnat all oi got 900 pulses, then did the exact same thing and got 1500pulses. I dont know why you would have a flow sensor like this . Tital junk, i asked grok about ut , it said I ts junk. ### ⭐⭐⭐⭐⭐ I used one of the two to repair my tankless water heater *by I***! on December 5, 2024* Really nice addition when replacing a water sensor in my tankless water heater. The old one was all black and you couldn't see what was going on inside the device. This one is clear and you can see the water moving and the device inside spinning. Wonderful now I can tell visually if it is working! The wires were too short for me so I soldered on some extra wire and covered the joint with heat srinkable tubing. ## Frequently Bought Together - JESSINIE 2Pcs YF-S201C DC3.5-24V G1/2" Transparent Flow Sensor Turbine Flowmeter Water Flow Sensor Transparent Water Flow Meter YF-S201C Range 1-30L/min - GREDIA 1/2" Water Flow Sensor Food-Grade Switch Hall Effect Flowmeter Fluid Meter Counter 1-30L/min - GREDIA 1/4" Quick Connect Water Flow Sensor Food-Grade Switch Hall Effect Flowmeter Fluid Meter Counter 0.3-6L/min --- ## 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.pl/products/534773345-2pcs-yf-s201c-dc3-5-24v-g1-2-transparent-flow](https://www.desertcart.pl/products/534773345-2pcs-yf-s201c-dc3-5-24v-g1-2-transparent-flow) --- *Product available on Desertcart Poland* *Store origin: PL* *Last updated: 2026-04-26*