--- product_id: 157531611 title: "FS-C02 G3/4\" BSP Male Thread Brass Water Flow Switch 1-30L/min, 0-2A/ 0-220V(AC or DC)" brand: "digiten" price: "฿1734" currency: THB in_stock: true reviews_count: 13 category: "Digiten" url: https://www.desertcart.co.th/products/157531611-fs-c02-g3-4-bsp-male-thread-brass-water-flow store_origin: TH region: Thailand --- # Flow range 1-30L/min precision 3/4" BSP Male Thread fits standard pipes Brass build for durability FS-C02 G3/4" BSP Male Thread Brass Water Flow Switch 1-30L/min, 0-2A/ 0-220V(AC or DC) **Brand:** digiten **Price:** ฿1734 **Availability:** ✅ In Stock ## Summary > 💧 Flow Smart, Stay Ahead – Don’t Let Your System Miss a Beat! ## Quick Answers - **What is this?** FS-C02 G3/4" BSP Male Thread Brass Water Flow Switch 1-30L/min, 0-2A/ 0-220V(AC or DC) by digiten - **How much does it cost?** ฿1734 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.th](https://www.desertcart.co.th/products/157531611-fs-c02-g3-4-bsp-male-thread-brass-water-flow) ## Best For - digiten enthusiasts ## Why This Product - Trusted digiten brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Universal 3/4" BSP Male Thread:** Seamlessly integrates with standard plumbing setups, compatible with NPT threads using Teflon tape for leak-proof connections. - • **Wide Flow Range & Fast Response:** Accurately detects water flow from 1 to 30L/min with a rapid 0.2s response time, perfect for precise system control. - • **Built to Last Brass Construction:** Premium brass housing ensures corrosion resistance and long-term reliability in demanding environments. - • **Compact, Weather-Resistant Design:** Small footprint with waterproof, heat, and pressure resistance ensures stable performance in diverse industrial and home applications. - • **Versatile Voltage & Current Compatibility:** Operates safely across 0-220V (AC/DC) and up to 2A, supporting a broad range of electrical devices including pumps and heaters. ## Overview The DIGITEN FS-C02 is a robust brass water flow switch featuring a 3/4" BSP male thread for easy integration, supporting flow rates from 1 to 30L/min. Designed for reliability, it operates within 0-220V (AC/DC) and up to 2A current, withstanding pressures up to 1.75 MPa and temperatures up to 120°C. Its fast 0.2-second response and compact, waterproof design make it ideal for precise control in water heaters, pumps, boilers, and various industrial and residential water systems. ## Description Main application:Magnetic Water Flow Switch adopts a Magnetic Reed Switch and a movable magnet which is fixed inside the water pipe. When water runs through the pipe part, the magnet will detect the water flow, and the magnet is shoved to one side by the flow. This then attracts the conductive strip which gets pulled down and makes contact, which completes the circuit and activates whatever electrical device you have attached to itSpecifications:Thread type: 3/4" BSP Male ThreadIt is fit in NPT Thread if you connect them with teflonOperation voltage: 0-220V(AC or DC)Flow range: 1-30L/minWorking temperature: 1-120℃Mini start water pressure: 0.02MpaMax working pressure: 1.75 MPaMax loading power: 50WWorking current: 0-2AResponse time: 0.2SMaterial: BrassMale Thread External Diameter: 25.85mm(1.0 inch)Tube Length: 60mm(2.36 inch)Cable Length: 29cm(11.41 inch)Size: 60mm*30mm*30mm(L*W*H)Please Note:Don't forget to mark which way the old flow switch arrow is pointing so you can install exactly the same.Package Include:Brass Flow Switch x 1 Review: bueno Review: Does the job. - It works well. I had to buy two 3/4” G Thread (BSP) Female to 3/4” NPT Male Connector (like ASIN B0B74F451Y). It is very difficult to get the connection not to leak, even with a lot of Plumber's Tape between the flow sensor and the BSP to NPT adaptor. However, I inserted a hose washer in between and did not need Plumber's Tape. No leaks. See photo of the hose washer. Use this one , not the orange type because the orange will expand inside and reduce the flow. I read here that some people do not use BSP to NPT adaptor and use a lot of Plumber's Tape. So, a hose washer, may be a solution for that too. ## Features - 🌟🌊【Safe and Reliable】This flow sensor switch is made of brass, all materials are in line with ROHS testing standards. It's a safety device that shuts off the current to the device (heaters, pumps, etc.) when it senses no water flow.When connecting the load, please add a relay. - 🌟💧【Thread type: 3/4" BSP Male Thread】 The flow sensor `s male thread external diameter: 25.85mm.It is fit in NPT Thread if you connect them with teflon - 🌟🌊 【Easy to install 】Our flow sensor is waterproof, heat resistance, pressurresistance, cold resistance, small size, stable and reliable. - 🌟💧 【Specification】Operation voltage of this flow sensor is : 0-220V(AC or DC), Working current: 0-2A, max working pressure: 1.75 MPa. Flow range: 1-30L/min. - 🌟🌊 【Widely Applications 】This water flow sensor switch can be use for Water heaters, pumps, hot tub, boiler, water dispensers, coffee machines, hot card machines, steam equipment, water system, the campus card sales, selling self-help water systems, water treatment equipment, cooling systems, mechanical equipment, instrumentation, pharmaceutical equipment. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07QNN3R6G | | Best Sellers Rank | #45,391 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #7 in Flow Switches | | Date First Available | April 16, 2019 | | Item Weight | 5.6 ounces | | Item model number | FS-C02ZJ | | Manufacturer | DIGITEN | | Package Dimensions | 3.66 x 2.52 x 1.14 inches | ## Images ![FS-C02 G3/4" BSP Male Thread Brass Water Flow Switch 1-30L/min, 0-2A/ 0-220V(AC or DC) - Image 1](https://m.media-amazon.com/images/I/61bBQyfNJAL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Review *by J***O on March 1, 2026* bueno ### ⭐⭐⭐⭐⭐ Does the job. *by N***Y on March 28, 2023* It works well. I had to buy two 3/4” G Thread (BSP) Female to 3/4” NPT Male Connector (like ASIN B0B74F451Y). It is very difficult to get the connection not to leak, even with a lot of Plumber's Tape between the flow sensor and the BSP to NPT adaptor. However, I inserted a hose washer in between and did not need Plumber's Tape. No leaks. See photo of the hose washer. Use this one , not the orange type because the orange will expand inside and reduce the flow. I read here that some people do not use BSP to NPT adaptor and use a lot of Plumber's Tape. So, a hose washer, may be a solution for that too. ### ⭐ Flow switch doesn’t return after water stops flowing *by R***C on January 24, 2024* This is the second flow switch I bought through Amazon, two different styles , first one outer casing was defective had a pin hole, this one I still have hooked up, it is controlling a recirculating pump for tankless water heater running through a relay so pump only runs when water starts flowing. The problem is that the NO contact does return to the open position , allowing the pump to keep running, if I tap on it with a screw driver it returns to open and turns off the pump. Two for two 🤔🥴 ## Frequently Bought Together - DIGITEN FS-C02 G3/4" BSP Male Thread Brass Water Flow Switch 1-30L/min, 0-2A/ 0-220V(AC or DC) - GESHATEN 3/4” G Thread (BSP) Female to 3/4” NPT Male Connector, Brass BSP to NPT Adapter 3/4 Inch, Industrial Metal Brass G Thread to Pipe Fittings Connect (2 Pack) - GREDIA G3/4" Hall Effect Liquid Water Flow Switch Control Flowmeter Counter Meter for Humidifier Water Dispenser Shower Water Heater Copper BSP Male Thread 1-50L/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.co.th/products/157531611-fs-c02-g3-4-bsp-male-thread-brass-water-flow](https://www.desertcart.co.th/products/157531611-fs-c02-g3-4-bsp-male-thread-brass-water-flow) --- *Product available on Desertcart Thailand* *Store origin: TH* *Last updated: 2026-04-28*