--- product_id: 166897121 title: "Samfox 4-20mA Signal Generator, 3-21mA Adjustable High Precision DC Current Analog Simulator Two-Wire Transducer Test Signal Generator DIY Kit JS-420ISG-V2" brand: "samfox" price: "AED 91" currency: AED in_stock: true category: "Samfox" url: https://www.desertcart.ae/products/166897121-samfox-4-20ma-signal-generator-3-21ma-adjustable-high-precision store_origin: AE region: United Arab Emirates --- # 4-20mA / 3-21mA adjustable output 0.01 display accuracy on LCD Rotary encoder for precise control Samfox 4-20mA Signal Generator, 3-21mA Adjustable High Precision DC Current Analog Simulator Two-Wire Transducer Test Signal Generator DIY Kit JS-420ISG-V2 **Brand:** samfox **Price:** AED 91 **Availability:** ✅ In Stock ## Summary > 🎯 Nail your signal tests with pinpoint precision and effortless control! ## Quick Answers - **What is this?** Samfox 4-20mA Signal Generator, 3-21mA Adjustable High Precision DC Current Analog Simulator Two-Wire Transducer Test Signal Generator DIY Kit JS-420ISG-V2 by samfox - **How much does it cost?** AED 91 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.ae](https://www.desertcart.ae/products/166897121-samfox-4-20ma-signal-generator-3-21ma-adjustable-high-precision) ## Best For - samfox enthusiasts ## Why This Product - Trusted samfox brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Smart Display Modes:** Customizable LCD readouts show actual current, percentage, or frequency—giving you the data you want, how you want it. - • **Versatile Output Range:** Seamlessly switch between 4-20mA device control and -21mA signal debugging modes to cover all your testing needs. - • **Compact & Ready to Deploy:** Lightweight, non-polarity terminals and automatic/manual output storage make this DIY kit a must-have for on-the-go professionals. - • **Precision at Your Fingertips:** Achieve ultra-accurate current simulation with 0.01 display accuracy for flawless device calibration. - • **Effortless Control & Calibration:** Intuitive rotary encoder lets you dial in exact output values with ease, ensuring perfect signal generation every time. ## Overview The Samfox JS-420ISG-V2 is a compact, high-precision 4-20mA signal generator designed for professional calibration and testing of two-wire transducers. Featuring a clear LCD with 0.01 accuracy, rotary encoder adjustment, and flexible output modes (4-20mA and -21mA), it ensures reliable, customizable current simulation. Its non-polarity terminals and programmable outputs make it an essential tool for engineers and technicians seeking efficient, accurate signal generation in a portable DIY kit. ## Description Features: This signal generator can use 4-20mA to generate voltage and control the current in the circuit. Accuracy up to 0.01; Liquid crystal display; Rotary encoder adjustment ; Two connection terminals are non polarity.Output range can be set; 4-20mA (device control) / -21mA (signal debugging)Display mode can be set, it is convenient for you to see the valueLinear output can be calibrated; The actual output can be consistent with the display of customer device.Output storage: automatic storage & manual storage.2-9 programmable outputs: just rotate the encoder to set.Specification: Item Model: JS-420ISG-V2Supply Voltage: 15 - 30VOutput Range: 4 - 20mA / 3 - 21mADisplay: Actual Current / Percentage / HzSampling Resistance: ＜500 ΩOutput Accuracy: 0.5%Display Accuracy: 0.01Color: Shown As PicturesSize: Approx. 8 * 4.2 * 4.5cm / 3.14 * 1.65 * 1.77inchWeight: 44gType: Signal GeneratorPackage List:1 * Signal Generator1 * Manual ## Features - This signal generator can use 4-20mA to generate voltage and control the current in the circuit. - Accuracy up to 0.01; Liquid crystal display; Rotary encoder adjustment ; Two connection terminals are non polarity. - Output range can be set; 4-20mA (device control) / -21mA (signal debugging) - Display mode can be set, it is convenient for you to see the value - Linear output can be calibrated; The actual output can be consistent with the display of customer device. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07TGJPPJL | | Best Sellers Rank | #235,900 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #97 in Function Generators | | Date First Available | June 25, 2019 | | Item Weight | 2.08 ounces | | Manufacturer | samfox | | Package Dimensions | 3.43 x 2.48 x 2.28 inches | ## Images ![Samfox 4-20mA Signal Generator, 3-21mA Adjustable High Precision DC Current Analog Simulator Two-Wire Transducer Test Signal Generator DIY Kit JS-420ISG-V2 - Image 1](https://m.media-amazon.com/images/I/519a5bvp6gL.jpg) ![Samfox 4-20mA Signal Generator, 3-21mA Adjustable High Precision DC Current Analog Simulator Two-Wire Transducer Test Signal Generator DIY Kit JS-420ISG-V2 - Image 2](https://m.media-amazon.com/images/I/61ngrHIbTiL.jpg) ![Samfox 4-20mA Signal Generator, 3-21mA Adjustable High Precision DC Current Analog Simulator Two-Wire Transducer Test Signal Generator DIY Kit JS-420ISG-V2 - Image 3](https://m.media-amazon.com/images/I/61lqC0mmFrL.jpg) ![Samfox 4-20mA Signal Generator, 3-21mA Adjustable High Precision DC Current Analog Simulator Two-Wire Transducer Test Signal Generator DIY Kit JS-420ISG-V2 - Image 4](https://m.media-amazon.com/images/I/61acrbHwIXL.jpg) ![Samfox 4-20mA Signal Generator, 3-21mA Adjustable High Precision DC Current Analog Simulator Two-Wire Transducer Test Signal Generator DIY Kit JS-420ISG-V2 - Image 5](https://m.media-amazon.com/images/I/61cdt4Qi3GL.jpg) ## Frequently Bought Together - Samfox 4-20mA Signal Generator, 3-21mA Adjustable High Precision DC Current Analog Simulator Two-Wire Transducer Test Signal Generator DIY Kit JS-420ISG-V2 - Current Loop, Two-Wire High Accuracy 4-20mA Current Loop Signal Generator LCD Transducer Test Signal Current - DROK 4-20mA Generator, Adjustable Signal Generator, DC 0-10V 0 4-20mA Current Voltage Analog Simulator for Value Adjusting PLC Panel LED Testing --- ## 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.ae/products/166897121-samfox-4-20ma-signal-generator-3-21ma-adjustable-high-precision](https://www.desertcart.ae/products/166897121-samfox-4-20ma-signal-generator-3-21ma-adjustable-high-precision) --- *Product available on Desertcart United Arab Emirates* *Store origin: AE* *Last updated: 2026-07-18*