--- product_id: 654443738 title: "Pressure Gauge 100mm (4inch) Dial Size, 3/8BSP Male Connection, DM (Direct Mounting) Bottom Entry (400psi (28kg))" brand: "hiair" price: "¥3640" currency: JPY in_stock: true category: "Hi Air" url: https://www.desertcart.jp/products/654443738-pressure-gauge-100mm-4inch-dial-size-3-8bsp-male-connection store_origin: JP region: Japan --- # 100mm (4inch) large dial for quick readings 3/8 BSP male threaded secure connection Direct Mount bottom entry for easy install Pressure Gauge 100mm (4inch) Dial Size, 3/8BSP Male Connection, DM (Direct Mounting) Bottom Entry (400psi (28kg)) **Brand:** hiair **Price:** ¥3640 **Availability:** ✅ In Stock ## Summary > ⏱️ Stay Ahead with Precision Pressure Monitoring! ## Quick Answers - **What is this?** Pressure Gauge 100mm (4inch) Dial Size, 3/8BSP Male Connection, DM (Direct Mounting) Bottom Entry (400psi (28kg)) by hiair - **How much does it cost?** ¥3640 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/654443738-pressure-gauge-100mm-4inch-dial-size-3-8bsp-male-connection) ## Best For - hiair enthusiasts ## Why This Product - Trusted hiair brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Built to Last:** Robust mild steel case with black powder coating resists harsh environments - • **Versatile Dual Scale:** Displays pressure in both PSI and kg/cm² for global compatibility - • **Effortless Installation:** Direct mount bottom entry with standard BSP thread reduces downtime - • **Precision You Can Trust:** ±2.5% accuracy ensures reliable pressure monitoring every time - • **Clear & Instant Readings:** Large 4-inch dial with high-contrast markings for no-mistake visibility ## Overview The HiAir Pressure Gauge features a 100mm (4-inch) dial with dual PSI and kg/cm² scales, delivering ±2.5% accuracy up to 400psi (28kg/cm²). Its durable mild steel powder-coated case and corrosion-resistant brass internals ensure longevity in industrial settings. Designed for easy direct mount bottom entry installation with a 3/8 BSP male connection, it offers clear, quick pressure readings ideal for HVAC, industrial, and commercial applications. ## Description Product Description HiAir Pressure gauge “HiAir” offers a reliable solution with its Commercial Pressure Gauge, designed to meet the stringent demands of industrial applications. With years of industry experience we are engaged in 400psi (28kg) Pressure Gauges of premium quality and designed for long and reliable service and we are offering a wide range of such 100mm (4Inch) Pressure Gauges. This comprehensive guide covers the features, specifications, and benefits of the “HiAir” Commercial Pressure Gauge, enabling you to make a well-informed decision. HiAir Pressure Gauge 0-28kg/cm2 (0-400psi), 100mm (4inch) Dial Size, 3/8BSP Male Connection, DM(Direct Mounting) Bottom Entry HiAir Pressure Gauge : Applications The “HiAir” Pressure Gauge is designed for a variety of industrial applications HVAC systems – Monitoring refrigerant or air pressure. Industrial processes – Checking hydraulic/pneumatic systems. Water treatment plants – Measuring pump pressure. Oil & gas – Monitoring pipelines and storage tanks. Food & beverage – Ensuring safe pressure levels in processing equipment This type of pressure gauge is also used for various applications in various fields. 0-400psi (0-28kg) Bottom Pressure Gauge Technical Specifications HiAir pressure gauge : Dimensions Pressure Gauge: Installation and Maintenance Proper installation and maintenance are crucial to ensure the long-term performance The “HiAir” Pressure Gauge. Here are some guidelines to follow 1. Installation Ensure the gauge is compatible with the system’s pressure range and connection type. Use appropriate tools to secure the 3/8″ BSP (M) connection, avoiding over-tightening, which can damage the gauge. Verify the gauge is installed in an accessible location for easy monitoring and maintenance. 2. Maintenance Regularly inspect the gauge for any signs of wear or damage. Clean the Glass, dial and casing to ensure clear visibility and accurate readings. Calibrate the gauge periodically to maintain accuracy, following the manufacturer’s recommendations. imported points for Purchase side HiAir Pressure Gauge: Benefits Enhanced Safety: Accurate pressure readings help prevent accidents and equipment failures by ensuring systems operate within safe pressure limits. Improved Efficiency: Reliable pressure monitoring helps optimize the performance of industrial systems, reducing energy consumption and operational costs. Versatility: The dual scale and wide pressure range make the gauge suitable for various applications, offering flexibility to users. Durability: The robust construction of the gauge ensures it can withstand harsh industrial environments, providing long-term value. Ease of Use: The clear dial and straightforward installation process make the gauge user-friendly, reducing the need for extensive training or specialized tools. Key Features Precision Measurement: With an accuracy of 2.5% of Full Scale Deflection (FSD), the gauge ensures reliable and precise pressure readings. Dual Scale: The gauge features both Kg/Cm² and PSI scales, catering to diverse measurement preferences and international standards. Sturdy Construction : The CACR (MS = Mild Steel) Black Powder Coated offers a durable exterior case, while the brass internals ensure accurate performance and resistance to corrosion. Easy Readability: The 4″ dial provides clear visibility, allowing users to read pressure levels at a glance. Simple Installation: The direct mounting bottom entry and 3/8″ BSP (M) connection make installation quick and easy, reducing downtime and labor costs. Hiair Pressure Gauge 28kg (400psi), 100mm (4inch,) 3/8BSP, Bottom Entry Apart from the applications mentioned above, HiAir pressure gauges are used in many other places, such as pressure gauge is an instrument used to measure the amount of pressure exerted by air, water, chemicals or similar gases. It is a mechanical device that translates the force of a pneumatic system into a visual dial indicator calibrated to represent the pressure. pressure gauges can be installed on process lines to indicate the pressure inside the pipe or on equipment such as compressors. They are simple to install, are robust, and require little to no maintenance to properly and quickly know air pressure within a system. Air is a compressible media. The pressure exerted by air in a closed system is inversely proportional to the volume of the air. If the system is open, the air pressure will be equal to atmospheric pressure. Pressurized air is therefore achieved by the reduction of the volume of the air. This pressurized air finds multiple applications in domestic processes such as inflating balloons, bicycles, car tires, etc. Pressurized air is also used in commercial and industrial processes for actuating valves in pneumatic systems, robotics, flight control, etc. Pressure gauges are used to measure the pressure of liquids, vapors, solids, and gases. For measuring high pressures e.g. in steam boilers, compressors For measuring pressures in vehicles tube tire. It is used for the inspection of air brakes on trucks. Pressure gauges are used in chemical, petrochemical, sanitary, pharmaceutical, and process industries. Pressure gauges are used in HVAC, refrigeration, ventilation, food, and beverage industries. They are also used in eliminating the potential leak paths. Pressure gauges are used in various sectors in different applications. ## Features - Pressure Range: Measures from 0-28kg/Cm2 (0-400psi) providing reliable pressure monitoring for various industrial and commercial applications - Dial Size: Features a 100mm (4inch) dial with clear and easy-to-read markings for quick and accurate pressure readings - Connection Type: Equipped with 3/8 BSP (M) Male Threaded connection for secure and standard fitting compatibility - Mounting Configuration: Bottom Connection with Direct Mounting design for convenient installation in tight spaces - Internal Construction: Internals made mostly of brass material ensuring durability and resistance to corrosion - Case Material: CACR (MS - Mild Steel) construction with black powder coated finish for enhanced protection and longevity - Accuracy Rating: Delivers ±2.5% accuracy in Full Scale Deflection (FSD) for dependable pressure measurements - Window and Visibility: Features plain and clean glass window with aluminum white dial, black and red printing, and aluminum black coated pointer for optimal readability ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0FD7QG1XJ | | Best Sellers Rank | #48,091 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #29 in Industrial Pressure Gauges | | Brand | HiAir | | Brand Name | HiAir | | Country of Origin | India | | Included Components | Pressure gauge in best packing and pressure gauge information label on box | | Item Dimensions | 10 x 12.5 x 4 Centimeters | | Item Type Name | Bottom Connection | | Item Weight | 240 Grams | | Item dimensions L x W x H | 10 x 12.5 x 4 Centimeters | | Manufacturer | HiAir | | Material | Aluminium , Brass , Glass, Metal | | Material Type | Aluminium, Brass, Glass, Metal | | Number of Items | 1 | | Number of Packs | 1 | | Packer Contact Information | HiAir Pressure Gauge | | Part Number | HIU4DCBE400 | | Thread Type | BSP | | Unit Count | 1.00 Piece | ## Product Details - **Brand:** HiAir - **Item Weight:** 240 Grams - **Item dimensions L x W x H:** 12.5 x 10 x 3.5 Centimeters - **Material:** Aluminium, Brass, Glass, Metal - **Thread Type:** 3/8 BSP ## Images ![Pressure Gauge 100mm (4inch) Dial Size, 3/8BSP Male Connection, DM (Direct Mounting) Bottom Entry (400psi (28kg)) - Image 1](https://m.media-amazon.com/images/I/71oyWeQa-qL.jpg) ![Pressure Gauge 100mm (4inch) Dial Size, 3/8BSP Male Connection, DM (Direct Mounting) Bottom Entry (400psi (28kg)) - Image 2](https://m.media-amazon.com/images/I/511khd1TWrL.jpg) ![Pressure Gauge 100mm (4inch) Dial Size, 3/8BSP Male Connection, DM (Direct Mounting) Bottom Entry (400psi (28kg)) - Image 3](https://m.media-amazon.com/images/I/71s4-LRp8RL.jpg) ![Pressure Gauge 100mm (4inch) Dial Size, 3/8BSP Male Connection, DM (Direct Mounting) Bottom Entry (400psi (28kg)) - Image 4](https://m.media-amazon.com/images/I/61gzBFEhzoL.jpg) ![Pressure Gauge 100mm (4inch) Dial Size, 3/8BSP Male Connection, DM (Direct Mounting) Bottom Entry (400psi (28kg)) - Image 5](https://m.media-amazon.com/images/I/51o7fMwC21L.jpg) ## Available Options This product comes in different **Style** options. ## Frequently Bought Together - 500psi (35kg) pressure gauge 100mm (4inch) 3/8BSP (500psi [35kg]) - TP-Link Tapo C220 Pan/Tilt Smart Ai 2K 4Mp Qhd 1440P Home Security Wi-Fi Camera| Alexa & Google Assistant Enabled |Night Vision|Two-Way Audio| Motion Detection - TP-LINK Tapo 4Mp 2K Qhd(2560X1440) Outdoor CCTV Security Wi-Fi Smart Camera -Alexa Enabled -Weatherproof -Full Color Starlight Night Vision -2-Way Audio -Up to 512Gb Sd Storage -C320Ws- White --- ## 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.jp/products/654443738-pressure-gauge-100mm-4inch-dial-size-3-8bsp-male-connection](https://www.desertcart.jp/products/654443738-pressure-gauge-100mm-4inch-dial-size-3-8bsp-male-connection) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-09-20*