--- product_id: 365068517 title: "2002 Magnehelic Differential Pressure Gauge, Type, 0 to 2\" WC" brand: "dwyer" price: "R6786" currency: ZAR in_stock: true reviews_count: 5 category: "Dwyer" url: https://www.desertcart.co.za/products/365068517-2002-magnehelic-differential-pressure-gauge-type-0-to-2-wc store_origin: ZA region: South Africa --- # 4" large dial for easy reading ±2% accuracy for precision Rugged aluminum case resists shock & vibration 2002 Magnehelic Differential Pressure Gauge, Type, 0 to 2" WC **Brand:** dwyer **Price:** R6786 **Availability:** ✅ In Stock ## Summary > 📊 Elevate your pressure monitoring game with precision and durability! ## Quick Answers - **What is this?** 2002 Magnehelic Differential Pressure Gauge, Type, 0 to 2" WC by dwyer - **How much does it cost?** R6786 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/365068517-2002-magnehelic-differential-pressure-gauge-type-0-to-2-wc) ## Best For - dwyer enthusiasts ## Why This Product - Trusted dwyer brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Durable & Dependable:** Shock and vibration resistant aluminum housing built to last in demanding environments - • **Smart Zero Adjustment:** Convenient external zero screw lets you recalibrate without disassembly - • **Effortless Readability:** Generous 4-inch dial ensures quick, clear pressure monitoring at a glance - • **Maintenance-Free Design:** Silicone fluid damping eliminates evaporation, freezing, and toxic risks - • **Industry Standard Precision:** Trusted by pros for accurate low-pressure readings from 0 to 2" WC ## Overview The Dwyer 2002 Magnehelic Differential Pressure Gauge is a rugged, industry-standard analog instrument designed to measure low air and gas pressures from 0 to 2 inches of water column. Featuring a large 4-inch dial for easy readability, ±2% full-scale accuracy, and a maintenance-free silicone fluid damping system, it delivers reliable performance in HVAC, fluidic, and industrial applications. Its durable aluminum case resists shock and vibration, while a convenient external zero adjustment screw simplifies calibration. Compatible with air and noncombustible gases, this gauge is built for professionals demanding precision and longevity. ## Description The Magnahelic guage is the industry standard to measure fan and blower pressures, filter resistance, air velocity, furnace draft, pressure drop across orifice plates, liquid levels with bubbler systems, and pressures in fluid amplifier or fluidic systems. The gauge's motion is damped with high-viscosity silicone fluid. The zero adjustment screw is conveniently located in the plastic cover, and is accessible without removing the cover. O-ring seal provides pressure tightness. Rugged design resists shock, vibration, and overpressure. The helix is precision-made from an alloy of high magnetic permeability. Mounted in jeweled bearings, it turns freely, following the maganetic field to move the pointer across the scale. The samarium cobalt magnet is mounted at one end of the range spring and rotates the helix without mechanical linkages. SpecificationsMin Pressurein WC: 0 Min Temperature C: 7 Min Temperature F: 20 Max Pressurein WC: 2 Max Temperature F: 140 Max Temperature C: 60 Dial Size (in): 4 Dial Size (mm): 102 Accuracy: ±2% full-scale Case: Aluminum Display: analog dial Lens Material: Polycarbonate Liquid Fill: Silicone Media Compatibility: Air and noncombustible, compatible gases Process Connection: 1/8 (in) NPT(F) Unit Of Measurement: WC2916736806208Universal Description Magnehelic Differential Pressure Gauge, Type , 0 to 2 WC Universal Guarantee: 1 year Review: Great gauge - Very accurate gauge Review: can't best dwyer - very dependable ## Features - The industry standard in indicating low air or gas pressures of positive, negative, or differential pressures - Large, easy-to-read 4" (102 mm) dial - No manometer fluid to evaporate, freeze, or cause toxic or leveling problems ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00481XA2M | | Best Sellers Rank | #284,295 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #787 in Digital Calipers | | Brand | Dwyer | | Brand Name | Dwyer | | Customer Reviews | 4.3 out of 5 stars 48 Reviews | | Item Dimensions | 15.2 x 9.7 x 17.3 Centimeters | | Item Weight | 1.4 Pounds | | Item dimensions L x W x H | 15.2 x 9.7 x 17.3 Centimeters | | Manufacturer | DWYER INSTRUMENTS | | Material | Plastic | | Material Type | Plastic | | Model Number | 6806208 | | Net Quantity | 1.0 Count | | Number of Items | 1 | | Part Number | 6806208 | | UPC | 094700705914 | | Unit Count | 1.0 Count | ## Product Details - **Brand:** Dwyer - **Item Weight:** 1.4 Pounds - **Item dimensions L x W x H:** 15.2 x 9.7 x 17.3 Centimeters - **Material:** Plastic - **UPC:** 094700705914 ## Images ![2002 Magnehelic Differential Pressure Gauge, Type, 0 to 2" WC - Image 1](https://m.media-amazon.com/images/I/61mObWvwHrL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Great gauge *by C***Y on 21 January 2026* Very accurate gauge ### ⭐⭐⭐⭐⭐ can't best dwyer *by K***E on 14 June 2026* very dependable ### ⭐⭐⭐ dwyer magnehelic meter *by Y***W on 17 October 2021* 0ne out off five units arrived without the accessory bag and the magnehelic is not in the plastic casing. I guess could be as a result of irresponsible inspection ## Frequently Bought Together - Dwyer 2002 Magnehelic Differential Pressure Gauge, Type, 0 to 2" WC - Dwyer 6846277 Portability Kit for Magnehelic Gauges - Fieldpiece ASP2 Static Pressure Probes --- ## 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.za/products/365068517-2002-magnehelic-differential-pressure-gauge-type-0-to-2-wc](https://www.desertcart.co.za/products/365068517-2002-magnehelic-differential-pressure-gauge-type-0-to-2-wc) --- *Product available on Desertcart South Africa* *Store origin: ZA* *Last updated: 2026-10-12*