--- product_id: 6360422 title: "Extech 380400 Resistance Substitution Decade Box, 1 to 11,111,110 Ohm" brand: "extech" price: "₨5540" currency: SCR in_stock: true url: https://www.desertcart.sc/products/6360422-extech-380400-resistance-substitution-decade-box-1-to-11-111 store_origin: SC region: Seychelles --- # 0-30V Output 0-3A Output Overload Protection Extech 380400 Resistance Substitution Decade Box, 1 to 11,111,110 Ohm **Brand:** extech **Price:** ₨5540 **Availability:** ✅ In Stock ## Summary > 🔧 Unleash Your Inner Engineer with the Extech380400! ## Quick Answers - **What is this?** Extech 380400 Resistance Substitution Decade Box, 1 to 11,111,110 Ohm by extech - **How much does it cost?** ₨5540 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.sc](https://www.desertcart.sc/products/6360422-extech-380400-resistance-substitution-decade-box-1-to-11-111) ## Best For - extech enthusiasts ## Why This Product - Trusted extech brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Safety First:** Built-in overload and short circuit protection for peace of mind. - • **Easy Connectivity:** Binding posts and snap terminals for hassle-free connections. - • **Global Compatibility:** Operates on 110/220VAC, perfect for any workspace. - • **Power Up Your Projects:** Adjustable voltage and current outputs for versatile applications. - • **Precision at Your Fingertips:** Digital displays for real-time monitoring of voltage and current. ## Overview The Extech380400 Resistance Decade Box is a versatile power supply solution featuring adjustable outputs of 0 to 30V and 0 to 3A, along with fixed outputs of 12V and 5V. It includes digital displays for precise monitoring, robust safety features, and compatibility with global voltage standards, making it an essential tool for professionals and hobbyists alike. ## Description Product Description The Extech 380400 Resistance Decade Box is very popular for product design testing and calibration because it can be substituted into a circuit and function in the place of any component with a standard value easily. Alternatively, it can be used to identify the best value for circuit operation then read that value from the switches. Then, a resistor of the size indicated by the decade box switches can be put into the circuit. From the Manufacturer Resistance decade box for product design or calibration checks. It features 7 decades of substitution from 1 to 11,111,110? in 1? increments. 1% accuracy. 3 binding posts permit isolated substitutions and grounding the case separately. ## Features - Adjustable 0 to 30V and 0 to 3A output plus fixed 12V and 5V outputs (0.5A continuous/1A surge) - Digital displays of voltage and current output - Binding posts for variable output and easy snap terminals for fixed outputs - Overload and short circuit protected - Operate on 110/220VAC (50/60Hz) ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00023RTZO | | Best Sellers Rank | #338,017 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #15 in Decade Boxes | | Date First Available | April 20, 2004 | | Item Weight | 10.9 ounces | | Item model number | 380400 | | Manufacturer | Extech Instruments | | Product Dimensions | 5.7 x 4.6 x 1.4 inches | ## Images ![Extech 380400 Resistance Substitution Decade Box, 1 to 11,111,110 Ohm - Image 1](https://m.media-amazon.com/images/I/51iAZkLfq+L.jpg) ![Extech 380400 Resistance Substitution Decade Box, 1 to 11,111,110 Ohm - Image 2](https://m.media-amazon.com/images/I/51j9lKUaGzL.jpg) ![Extech 380400 Resistance Substitution Decade Box, 1 to 11,111,110 Ohm - Image 3](https://m.media-amazon.com/images/I/51bByxzmnvL.jpg) ![Extech 380400 Resistance Substitution Decade Box, 1 to 11,111,110 Ohm - Image 4](https://m.media-amazon.com/images/I/31OSafDvqbL.jpg) ![Extech 380400 Resistance Substitution Decade Box, 1 to 11,111,110 Ohm - Image 5](https://m.media-amazon.com/images/I/51nnzA36+oL.jpg) ## Available Options This product comes in different **Style** options. ## Questions & Answers **Q: Maximum voltage rating ?** A: I have only used this on 24VDC systems. **Q: Does this item come with test leads?** A: No, just the box. It uses standard banana test ends. **Q: How would you set this to, say, 350 ohms? Or any value containing a digit greater than 4? Just don't?** A: The values are cumulative, to get 350 Ohms you would switch the 300, 40, and 10 OHM down. To get a greater the 4 value you would just switch the needed values on. This item has a range between 1 to 11,111,110 Ohms **Q: Will this unit provide a stable signal on automotive circuits?** A: This is a typical decade box that will provide the resistance you need for testing purposes. I have used it to simulate different devices in the testing of DC control systems. ## Frequently Bought Together - Extech 380400 Resistance Decade Box - Sumnacon Multimeter Banana Plug to Crocodile Alligator Clip Test Probe, 5PCS 4mm Stackable Colorful Silicone Banana Plug to Alligator Clip Test Probe Lead Wire Cable 1M - GME CD-300 Capacitance Substitution Decade Box, 5 Decades Range, 100pF to 11.111 μF, Designed in The USA --- ## 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.sc/products/6360422-extech-380400-resistance-substitution-decade-box-1-to-11-111](https://www.desertcart.sc/products/6360422-extech-380400-resistance-substitution-decade-box-1-to-11-111) --- *Product available on Desertcart Seychelles* *Store origin: SC* *Last updated: 2026-10-17*