--- product_id: 316881928 title: "OTC Tools 4278 100 GPM Hydraulic Flow Meter" brand: "otc" price: "NT$2634" currency: TWD in_stock: false url: https://www.desertcart.tw/products/316881928-otc-tools-4278-100-gpm-hydraulic-flow-meter store_origin: TW region: Taiwan --- # ±1% flow accuracy 6000 PSI pressure rating 100 GPM max flow OTC Tools 4278 100 GPM Hydraulic Flow Meter **Brand:** otc **Price:** NT$2634 **Availability:** ❌ Out of Stock ## Summary > ⚡ Master your hydraulic flow with pinpoint precision and unstoppable reliability! ## Quick Answers - **What is this?** OTC Tools 4278 100 GPM Hydraulic Flow Meter by otc - **How much does it cost?** NT$2634 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.tw](https://www.desertcart.tw/products/316881928-otc-tools-4278-100-gpm-hydraulic-flow-meter) ## Best For - otc enthusiasts ## Why This Product - Trusted otc brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Compact Yet Mighty:** Weighing just 6.35 kg with a sleek 1-inch thickness, this flow meter fits effortlessly into your toolkit without compromising power. - • **Safety-First Engineering:** Standard burst disc protection prevents costly hydraulic fluid spills, safeguarding your equipment and workspace. - • **Precision that Powers Performance:** Achieve ultra-accurate flow readings with ±1% flow and ±1.6% pressure accuracy—engineered for flawless hydraulic diagnostics. - • **Built to Brave the Toughest Conditions:** Operates reliably up to 6000 PSI and 250°F, ensuring durability in the most demanding industrial environments. - • **Versatile Bi-Directional Flow Measurement:** Seamlessly measures flow in both directions with a robust #16 SAE ORB port, adapting to complex hydraulic systems. ## Overview The OTC Tools 4278 Hydraulic Flow Meter delivers high-precision flow measurement from 2.5 to 100 GPM with ±1% accuracy, supports pressures up to 6000 PSI, and withstands temperatures up to 250°F. Featuring bi-directional flow capability and built-in burst disc protection, it’s engineered for professional-grade hydraulic diagnostics and safety in demanding industrial settings. ## Description From the manufacturer OTC - Proudly Serving Professional Technicians for Almost a Century Steve Cross Drop Forge Operator of 40 years “I’M PROUD OF THE OTC BRAND. I’M MAKING A BRAND THAT’S BEEN AROUND A LONG TIME. ANY GUY THAT’S WORKED ON A CAR HAS HEARD OF THE OTC BRAND, AND THEY PROBABLY HAVE USED IT.” At OTC, we're proud of our heritage and those that have built it with us. What We Like Most About Technicians is Their Work Ethic Technicians are problem solvers who aren’t afraid of sweat on their brow and grease on their hands. They provide high quality services that demand high quality tools. When they need a reliable tool, they know they can depend on OTC tools to deliver. Owatonna Tool Company for the long haul — proudly designing and manufacturing American specialty service tools, diagnostics and shop equipment since 1925. Automotive Specialty Tools Heavy Duty Truck Service Tools Heavy Duty Shop Tools Motorcycle Tools Electronic Diagnostic Tools and so much more ## Features - Tests hydraulic oil circuits on your machinery with high accuracy and measures flow from 2.5 to 100 gpm - Flow accuracy to +/- 1 percent of indicated value and pressure accuracy of +/- 1.6 percent of full scale - Pressure range up to 6,000 psi and temperatures up to 250 deg F - Standard burst disc protection system prevents spillage of hydraulic fluid in the event of an overpressure condition - Accommodates bi-directional flow, reads flow in both directions, pressure on the high side of valve and Port is 1-5/16" -12UN #16 SAE ORB ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B01A8Q3GQ0 | | ASIN | B01A8Q3GQ0 | | Batteries Included? | No | | Batteries Required? | No | | Best Sellers Rank | #138,858 in Automotive ( See Top 100 in Automotive ) #45 in Automotive Pressure & Vacuum Testers | | Customer Reviews | 5.0 5.0 out of 5 stars (1) | | Customer reviews | 5.0 5.0 out of 5 stars (1) | | Date First Available | 1 January 2024 | | Date First Available | 1 January 2024 | | Included components | Hydraulic Flow Meter - 100 gpm | | Item Package Quantity | 1 | | Item Weight | 6.35 Kilograms | | Item model number | 4278 | | Item model number | 4278 | | Item thickness | 1 Inches | | Manufacturer | OTC Tools | | Manufacturer | OTC Tools | | Number Of Pieces | 1 | | Part number | 4278 | | Product Dimensions | 24 x 19.99 x 19.76 cm; 6.35 kg | | Product Dimensions | 24 x 19.99 x 19.76 cm; 6.35 kg | | Voltage | 9 Volts | ## Images ![OTC Tools 4278 100 GPM Hydraulic Flow Meter - Image 1](https://m.media-amazon.com/images/I/916xPvR6KpL.jpg) ![OTC Tools 4278 100 GPM Hydraulic Flow Meter - Image 2](https://m.media-amazon.com/images/I/81h5tWDGttL.jpg) ![OTC Tools 4278 100 GPM Hydraulic Flow Meter - Image 3](https://m.media-amazon.com/images/I/917xRem7NLL.jpg) ![OTC Tools 4278 100 GPM Hydraulic Flow Meter - Image 4](https://m.media-amazon.com/images/I/81RGjT0cEHL.jpg) ![OTC Tools 4278 100 GPM Hydraulic Flow Meter - Image 5](https://m.media-amazon.com/images/I/914wnYZ6cmL.jpg) ## Frequently Bought Together - OTC Tools 4278 100 GPM Hydraulic Flow Meter - Lisle 37960 Electrical Disconnect Pliers - Lisle 70500 Tap Socket Set --- ## 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.tw/products/316881928-otc-tools-4278-100-gpm-hydraulic-flow-meter](https://www.desertcart.tw/products/316881928-otc-tools-4278-100-gpm-hydraulic-flow-meter) --- *Product available on Desertcart Taiwan* *Store origin: TW* *Last updated: 2026-06-20*