--- product_id: 728190654 title: "Lematec Digital Air Flow Gauge Regulator with Locking Adjustment Valve, Control 1/4 inch Universal Thread Male Inlet Fitting, Works All Tools and Compressors" brand: "le lematec" price: "€ 132.52" currency: EUR in_stock: false reviews_count: 5 category: "Le Lematec" url: https://www.desertcart.sk/products/728190654-lematec-digital-air-flow-gauge-regulator-with-locking-adjustment-valve store_origin: SK region: Slovakia --- # Lematec Digital Air Flow Gauge Regulator with Locking Adjustment Valve, Control 1/4 inch Universal Thread Male Inlet Fitting, Works All Tools and Compressors **Brand:** le lematec **Price:** € 132.52 **Availability:** ❌ Out of Stock ## Quick Answers - **What is this?** Lematec Digital Air Flow Gauge Regulator with Locking Adjustment Valve, Control 1/4 inch Universal Thread Male Inlet Fitting, Works All Tools and Compressors by le lematec - **How much does it cost?** € 132.52 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.sk](https://www.desertcart.sk/products/728190654-lematec-digital-air-flow-gauge-regulator-with-locking-adjustment-valve) ## Best For - le lematec enthusiasts ## Why This Product - Trusted le lematec brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Description International products have separate terms, are sold from abroad and may differ from local products, including fit, age ratings, and language of product, labeling or instructions. Review: Good Review: Item allows variable Psi adjustments and works well! ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B01N7SHW9J | | Best Sellers Rank | #50,982 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #40 in Industrial Pressure Regulators | | Brand | LE LEMATEC | | Brand Name | LE LEMATEC | | Connector Type | Threaded | | Customer Reviews | 4.2 out of 5 stars 363 Reviews | | Exterior Finish | Metallic Finish | | Global Trade Identification Number | 00850030726728 | | Inlet Connection Size | 0.25 Inches | | Inlet Connection Type | National Pipe Tapered | | Item Dimensions | 3.23 x 2.76 x 2.05 inches | | Item dimensions L x W x H | 3.23 x 2.76 x 2.05 inches | | Manufacturer | Ubiquitous | | Manufacturer Part Number | DAR03B | | Material | Aluminun | | Material Type | Aluminun | | Maximum Pressure | 140 Pound per Square Inch | | Model Number | DAR03B | | Number of Ports | 2 | | Outlet Connection Size | 0.25 Inches | | Outlet Connection Type | NPT | | Size | 7 x 8.2 x 5.2 inches | | Specification Met | ASME, ANSI, CE | | Thread Size | 1/4 NPT | | Thread Type | NPT | | Unit Count | 1 Count | | Valve Type | Needle Valve | ## Product Details - **Brand:** LE LEMATEC - **Exterior Finish:** Metallic Finish - **Inlet Connection Size:** 0.25 Inches - **Inlet Connection Type:** National Pipe Tapered - **Item dimensions L x W x H:** 3.23 x 2.76 x 2.05 inches - **Material:** Aluminun - **Maximum Operating Pressure:** 140 Pound per Square Inch - **Number of Ports:** 2 - **Outlet Connection Size:** 0.25 Inches - **Outlet Connection Type:** NPT ## Images ![Lematec Digital Air Flow Gauge Regulator with Locking Adjustment Valve, Control 1/4 inch Universal Thread Male Inlet Fitting, Works All Tools and Compressors - Image 1](https://m.media-amazon.com/images/I/61j6ANDTSmL.jpg) ![Lematec Digital Air Flow Gauge Regulator with Locking Adjustment Valve, Control 1/4 inch Universal Thread Male Inlet Fitting, Works All Tools and Compressors - Image 2](https://m.media-amazon.com/images/I/71f0iLHovnL.jpg) ![Lematec Digital Air Flow Gauge Regulator with Locking Adjustment Valve, Control 1/4 inch Universal Thread Male Inlet Fitting, Works All Tools and Compressors - Image 3](https://m.media-amazon.com/images/I/710UlRlV8+L.jpg) ![Lematec Digital Air Flow Gauge Regulator with Locking Adjustment Valve, Control 1/4 inch Universal Thread Male Inlet Fitting, Works All Tools and Compressors - Image 4](https://m.media-amazon.com/images/I/81ZnS8vJl8L.jpg) ![Lematec Digital Air Flow Gauge Regulator with Locking Adjustment Valve, Control 1/4 inch Universal Thread Male Inlet Fitting, Works All Tools and Compressors - Image 5](https://m.media-amazon.com/images/I/7126BbbJudL.jpg) ## Questions & Answers **Q: What's the difference between the DAR03B and DAR01B?** A: Both are 0.5 PSI digital regulators. The DAR03B adds a LOCKING VALVE to hold pressure steady against vibration, ideal for pro tasks (spray painting, plasma cutting). The DAR01B lacks a lock, making it best for general use. **Q: How long does the battery last?** A: The CR2032 battery provides 1000+ hours of active display use. At typical workshop usage (2-4 hours per day), expect 6-12+ months per battery. Replacement CR2032 batteries cost under $2 and are available at any hardware store, pharmacy, or online. **Q: How accurate is the digital pressure reading?** A: The DAR03B reads in 0.5 PSI / 0.05 Bar / 5 kPa increments for pro-grade precision. Its digital display eliminates the guesswork of analog gauges, exceeding the precision needs for most air tool applications. **Q: Why ABS instead of metal construction?** A: ABS is chosen for regulator housings because it's chemical-resistant against oils/moisture, lightweight to reduce connection strain, and impact-resistant to survive drops better than cast metal. It's used in pro tool housings **Q: What tools is this compatible with?** A: Using standard 1/4" NPT connections, the DAR03B fits virtually all pneumatic tools: spray guns, sandblasters, plasma cutters, airbrushes, nailers & more. Its operating range is 0-160 PSI / 0-11 Bar. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Good *by F***D on 9 October 2021* ### ⭐⭐⭐⭐⭐ Item allows variable Psi adjustments and works well! *by M***Z on 16 September 2021* ### ⭐⭐⭐ Not quite what it should be.. It’s just a simple line/tank gauge. *by A***M on 31 May 2020* ## Frequently Bought Together - LE LEMATEC Digital Air Pressure Regulator with Locking Valve for Air Slip Prevention, 1/4 NPT Inline Airflow Regulator Up to 160 PSI for Air Compressor, HVLP Spray Paint Gun & Pneumatic Tools (DAR03B) - 15-PC Air Compressor Hose Fitting Kit with Storage Case, 1/4" NPT Quick Connect Fittings, Solid Brass High-Flow Connectors, 3 Male & 3 Female Plugs + 5 Dual Plug Connectors - LE LEMATEC Air Compressor Water Separator, 1/4 NPT Inline Filter & Moisture Trap for Pneumatic Tools, HVLP Spray Paint Gun & Airbrush, Durable Compressed Air Dryer with Easy Drain Valve, AI303 --- ## 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.sk/products/728190654-lematec-digital-air-flow-gauge-regulator-with-locking-adjustment-valve](https://www.desertcart.sk/products/728190654-lematec-digital-air-flow-gauge-regulator-with-locking-adjustment-valve) --- *Product available on Desertcart Slovakia* *Store origin: SK* *Last updated: 2026-05-25*