--- product_id: 806577310 title: "Riiai 4-20mA Signal Generator: Supports Voltage and Current Output/Measurement, PWM Output, Function Generator with Rechargeable Battery, Calibration Function - for Electronic Maintenance/Testing" price: "$91.91" currency: USD in_stock: true reviews_count: 1 url: https://www.desertcart.us/products/806577310-riiai-4-20ma-signal-generator-supports-voltage-and-current-output store_origin: US region: United States of America --- # 0-24mA current output with 0.05mA precision One-click calibration for error-free accuracy 1500mAh rechargeable battery for wireless use Riiai 4-20mA Signal Generator: Supports Voltage and Current Output/Measurement, PWM Output, Function Generator with Rechargeable Battery, Calibration Function - for Electronic Maintenance/Testing **Price:** $91.91 **Availability:** ✅ In Stock ## Summary > ⚙️ Elevate your electronic testing game—precision, portability, and power in your palm! ## Quick Answers - **What is this?** Riiai 4-20mA Signal Generator: Supports Voltage and Current Output/Measurement, PWM Output, Function Generator with Rechargeable Battery, Calibration Function - for Electronic Maintenance/Testing - **How much does it cost?** $91.91 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/806577310-riiai-4-20ma-signal-generator-supports-voltage-and-current-output) ## Best For - Customers looking for quality international products ## Why This Product - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Cord-Free Freedom:** Portable, palm-sized design with a robust rechargeable battery keeps you untethered on every site visit. - • **All-in-One Powerhouse:** Combine current, voltage, and PWM outputs in a single sleek device—ditch the clutter, boost your workflow. - • **Smart Storage & Triple Safety:** Save your go-to settings and protect your device with short-circuit, reverse connection, and charging safeguards. - • **Precision That Commands Confidence:** Customize outputs with industry-leading accuracy (0.05mA & 0.03V) to nail every test with scientific certainty. - • **Instant Calibration, Zero Guesswork:** One-click calibration wipes out drift and environmental errors—stay sharp, stay reliable. ## Overview The Riiai 4-20mA Signal Generator is a compact, rechargeable multifunction device integrating current/voltage output, measurement, and PWM signal generation. Designed for electronic maintenance and industrial testing, it offers high-precision customizable outputs, one-click calibration, and triple safety protections, making it an indispensable tool for professionals seeking efficiency and accuracy in the field. ## Description Product description Custom current/voltage output ranges Precise, Portable, Powerful – Riiai Signal Generator Wiring Diagram Clear display, easy operation All-in-one, precision testing Review: Worth every penny - Awesome product, works great for testing controls devices at my desk. ## Features - 【5 Integrated Functions】Integrates current/voltage output, current/voltage measurement, and PWM output(Square Wave) into a single device, eliminating the need for multiple tools and greatly boosting testing efficiency for electronic engineers in daily work - 【High-Precision Custom Output】Supports customizable 0-24mA current (0.05mA accuracy) and ±12V voltage (0.03V accuracy), perfectly satisfying the high-precision testing demands of industrial control system and electronic equipment - 【Portable Wireless Use】Equipped with a 1500mAh rechargeable battery for long-lasting cord-free operation; its palm-sized compact design allows easy carrying duringon-site maintenance tasks without being limited by power cords - 【One-Click Calibration】Built-in one-click calibration function, effectively eliminating errors caused by long-term use or environmental factors, ensuring stable and accurate readings for laboratory testing - 【Storage & Triple Protection】Features parameter storage to save frequently used settings for quick access; triple protection (short-circuit, reverse connection, charging) ensures safe circuit debugging operations and device durability - 【3 Power Supply Modes】Offers flexible power options - battery, USB-C charging, and top terminal power, seamlessly adapting to outdoor fieldwork, indoor fixed testing, and long-term continuous operation scenarios - 【Easy Operation】High-definition color screen clearly displays complex parameters like output values and measured data; one-step adjustment design makes it easy to use for both professionals and beginner technicians ## Technical Specifications | Specification | Value | |---------------|-------| | Customer Reviews | 5.0 out of 5 stars 1 Review | ## Images ![Riiai 4-20mA Signal Generator: Supports Voltage and Current Output/Measurement, PWM Output, Function Generator with Rechargeable Battery, Calibration Function - for Electronic Maintenance/Testing - Image 1](https://m.media-amazon.com/images/I/715l3cXcVjL.jpg) ![Riiai 4-20mA Signal Generator: Supports Voltage and Current Output/Measurement, PWM Output, Function Generator with Rechargeable Battery, Calibration Function - for Electronic Maintenance/Testing - Image 2](https://m.media-amazon.com/images/I/714ZOFpcqeL.jpg) ![Riiai 4-20mA Signal Generator: Supports Voltage and Current Output/Measurement, PWM Output, Function Generator with Rechargeable Battery, Calibration Function - for Electronic Maintenance/Testing - Image 3](https://m.media-amazon.com/images/I/71++IOWB-sL.jpg) ![Riiai 4-20mA Signal Generator: Supports Voltage and Current Output/Measurement, PWM Output, Function Generator with Rechargeable Battery, Calibration Function - for Electronic Maintenance/Testing - Image 4](https://m.media-amazon.com/images/I/71MQjqPR98L.jpg) ![Riiai 4-20mA Signal Generator: Supports Voltage and Current Output/Measurement, PWM Output, Function Generator with Rechargeable Battery, Calibration Function - for Electronic Maintenance/Testing - Image 5](https://m.media-amazon.com/images/I/714AnvAs64L.jpg) ## Available Options This product comes in different **Color** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Worth every penny *by R***S on May 7, 2026* Awesome product, works great for testing controls devices at my desk. --- ## 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.us/products/806577310-riiai-4-20ma-signal-generator-supports-voltage-and-current-output](https://www.desertcart.us/products/806577310-riiai-4-20ma-signal-generator-supports-voltage-and-current-output) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-06-07*