--- product_id: 38644312 title: "HiLetgo G1/2\" Water Flow Hall Sensor Switch 1-30L/min 1.75MPa Flow Meter Flowmeter Counter Water Flow Sensor" brand: "hiletgo" price: "āļŋ907" currency: THB in_stock: true reviews_count: 4 url: https://www.desertcart.co.th/products/38644312-hiletgo-g1-2-water-flow-hall-sensor-switch-1-30l store_origin: TH region: Thailand --- # 5V-24V 1-30L/min 1.75MPa HiLetgo G1/2" Water Flow Hall Sensor Switch 1-30L/min 1.75MPa Flow Meter Flowmeter Counter Water Flow Sensor **Brand:** hiletgo **Price:** āļŋ907 **Availability:** ✅ In Stock ## Summary > ðŸ’Ą Flow with the Future: Elevate Your Water Management Game! ## Quick Answers - **What is this?** HiLetgo G1/2" Water Flow Hall Sensor Switch 1-30L/min 1.75MPa Flow Meter Flowmeter Counter Water Flow Sensor by hiletgo - **How much does it cost?** āļŋ907 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/38644312-hiletgo-g1-2-water-flow-hall-sensor-switch-1-30l) ## Best For - hiletgo enthusiasts ## Why This Product - Trusted hiletgo brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - â€Ē **Durable Build:** Constructed from high-quality FR4 material for long-lasting performance. - â€Ē **Compact Design:** Lightweight at only 1.58 ounces, perfect for space-constrained setups. - â€Ē **Low Power Consumption:** Max operating current of just 15 mA ensures energy efficiency. - â€Ē **Precision Flow Control:** Monitor water flow rates from 1 to 30 liters per minute with unmatched accuracy. - â€Ē **Versatile Voltage Range:** Compatible with a wide voltage range of 5V to 24V for flexible applications. ## Overview The HiLetgo G1/2" Water Flow Hall Sensor Switch is a high-performance flowmeter designed to accurately measure water flow rates between 1 to 30 liters per minute. With a robust operating voltage range of 5V to 24V and a maximum pressure of 1.75MPa, this sensor is perfect for various applications. Its compact design and low power consumption make it an ideal choice for both professional and DIY projects. ## Description HiLetgo G1/2" Water Flow Hall Sensor Switch 1-30L/min 1.75MPa Flow Meter Flowmeter Counter Water Flow Sensor ## Features - 1-30L/min 1.75MPa 1/2" Hall Effect Flowmeter Control Water Flow Sensor - The lowest rated working voltage: DC4.5 5V-24V - Maximum operating current: 15 mA (DC 5V) - Working voltage range: DC 5~18 v - Load capacity: 10 mA (DC 5V) ## Technical Specifications | Specification | Value | |---------------|-------| | Manufacturer | HiLetgo | | Part Number | 3-01-1257 | | Item Weight | 1.58 ounces | | Package Dimensions | 3.1 x 2.6 x 1.3 inches | | Is Discontinued By Manufacturer | No | | Material | FR4 | | Batteries Included? | No | | Batteries Required? | No | ## Images ![HiLetgo G1/2" Water Flow Hall Sensor Switch 1-30L/min 1.75MPa Flow Meter Flowmeter Counter Water Flow Sensor - Image 1](https://m.media-amazon.com/images/I/51esSimSCmL.jpg) ## Questions & Answers **Q: Is this npt thread type?** A: It is a 1/2" G Thread. See https://www.amazon.com/gp/product/B08JCLHLDK/ref=ppx_yo_dt_b_asin_title_o09_s01?ie=UTF8&psc=1 for compatible adapters to convert to 1/2" NPT **Q: Do you have an electric diagram?** A: Red is voltage in. Black is common and the yellow just plugs into whatever digital input you assign. There are several good tutorials on this device with Arduino. ## Customer Reviews ### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars Simple to use. Good quality. *by J***D on Reviewed in the United States on September 23, 2022* I've been using this product and the 3/4" version for the past year on my irrigation system. Excellent product. Simple to use. A couple of things to remember. First, the supply voltage says 5-24V, but there are some practical reasons why using a higher voltage may be a problem. If you are interfacing this to some IOT device which runs at 5V or 3.3V you are going to have problems. The output signal will be at the same voltage as its supply. So, if you power the thing at 12V, you are going to get a 12V signal back. Not really nice for a 5V or 3.3V input pin. I had a 3.3V IOT device so I tried using a Zener diode, but the supply current from the flow meter was too small to make this work. You really need to supply this flow meter with the voltage your IOT is compatible with. Don't try any fancy level shifting.The good news is I've been running this thing at 3.3V (it's only spec'd to 4.5V) and it works just fine. ### ⭐⭐⭐ 3.0 out of 5 stars Leaky threads but works *by F***F on Reviewed in the United States on December 31, 2021* Having a very hard time keeping this from leaking. Otherwise, it works as it should. ### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars Worked great! *by K***R on Reviewed in the United States on May 7, 2021* I never actually used it for what I bought it for, but I have tested it and worked just fine. ## Frequently Bought Together - HiLetgo G1/2" Water Flow Hall Sensor Switch 1-30L/min 1.75MPa Flow Meter Flowmeter Counter Water Flow Sensor - Certified Appliance Accessories 15-0346 15-Amp Appliance Power Cord, 6 Feet, 3 Wires, Grounded, Right Angle Plug Head - 3 Outlet Power Strip 3ft - FosPower Cruise Ship Approved Small White Power Strip with Flat Plug & Safety Covers, Short 3 Foot Short Extension Cord, No Surge Protector, 3 Prong, ETL Listed --- ## 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/38644312-hiletgo-g1-2-water-flow-hall-sensor-switch-1-30l](https://www.desertcart.co.th/products/38644312-hiletgo-g1-2-water-flow-hall-sensor-switch-1-30l) --- *Product available on Desertcart Thailand* *Store origin: TH* *Last updated: 2026-04-27*