--- product_id: 97097141 title: "DROK Signal Generator, DC 3.3-30V Function Generator 5-30mA LCD Display PWM Pulse Frequency Duty Cycle Rectangular Wave Square Wave Signal Generator" brand: "drok" price: "SAR 81" currency: SAR in_stock: true category: "Drok" url: https://www.desertcart.com.sa/products/97097141-drok-signal-generator-dc-3-3-30v-function-generator-5 store_origin: SA region: Saudi Arabia --- # 3.3-30V wide voltage range 1Hz-150kHz ultra-wide frequency 0-100% adjustable duty cycle DROK Signal Generator, DC 3.3-30V Function Generator 5-30mA LCD Display PWM Pulse Frequency Duty Cycle Rectangular Wave Square Wave Signal Generator **Brand:** drok **Price:** SAR 81 **Availability:** ✅ In Stock ## Summary > ⚙️ Power your projects with precision and style — don’t get left in the signal noise! ## Quick Answers - **What is this?** DROK Signal Generator, DC 3.3-30V Function Generator 5-30mA LCD Display PWM Pulse Frequency Duty Cycle Rectangular Wave Square Wave Signal Generator by drok - **How much does it cost?** SAR 81 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.com.sa](https://www.desertcart.com.sa/products/97097141-drok-signal-generator-dc-3-3-30v-function-generator-5) ## Best For - drok enthusiasts ## Why This Product - Trusted drok brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Smart Memory Retention:** Auto-saves all settings on power off—never lose your custom configurations. - • **Crystal Clear LCD Display:** Instantly monitor frequency and duty cycle values with a sleek, easy-to-read screen. - • **Dynamic Duty Cycle Mastery:** Adjust duty cycle from 0 to 100% independently for perfect PWM tuning. - • **Seamless Power Flexibility:** Operates effortlessly from 3.3V up to 30V DC to fit any project power needs. - • **Precision at Your Fingertips:** High-accuracy frequency control with 2% precision across 4 auto-switching ranges. ## Overview The DROK Signal Generator is a versatile function generator supporting DC 3.3-30V input, frequency range from 1Hz to 150kHz with 2% precision, and an adjustable duty cycle from 0-100%. Featuring an intuitive LCD display and auto-saving memory, it’s ideal for experimental development, motor drivers, MCU pulse generation, and PWM control circuits. Compact and reliable, it’s a must-have tool for engineers and tech innovators aiming for flawless signal control. ## Description Parameter: 1. Working voltage: DC 3.3v~30v 2. Frequency range: 1Hz~150kHz (divided into 4 ranges); 3. Frequency precision: 2% of each range; 4. Signal load capacity: output current is about 5-30mA; 5. Output Amplitude: PWM amplitude equal to the input voltage value 6. Environment Temperature Range: -20~+70℃ 7. Duty cycle range: 0-100%.Application: 1. As square wave signal generator for experimental development; 2. As square wave signal generator for motor driver; 3. As adjustable pulse generator for MCU; 4. As pulse generator, control related circuits (PWM dimming, speed regulating).Setting Parameters: There are 4 independent buttons on the module for setting the frequency value and the duty cycle value. Supports short press (increase or decrease 1 unit by 1 unit) and long press (fast increase or decrease). All setting parameters will be saved when powered off to achieve data guaranteed.Frequency Display Instruction: The frequency is divided into 4 ranges and switched automatically. 1. XXX (without decimal point): minimum unit is 1Hz, value range is 1Hz~999Hz. 2. X.XX (the decimal point is in the hundred digit): minimum unit is 0.01kHz, value range is 1.00kHz~9.99kHz. 3. XX.X (the decimal point is in the ten digit): minimum unit is 0.1kHz; value range is 10.0kHz~99.9kHz. 4. X.X.X (full decimal point): the minimum unit is 1kHz; the value range is 1kHz~150kHze.g. Frequency displays 100 represents 100Hz; displays 1.01 represents 1.01kHz; displays 54.1 represents 54.1kHz; displays 1.2.4 represents 124kHzPackage Included: 1x Signal Generator ## Features - PARAMETER ---- operating voltage range DC 3.3v~30v; frequency range 1Hz-150kHz; output current 5-30mA; duty cycle range 0-100%. - APPLICATION ---- as square wave signal generator for experimental development; as square wave signal generator for motor driver; as adjustable pulse generator for MCU; as pulse generator, control related circuits (PWM dimming, speed regulating). - SERIAL COMMUNICATION ---- support serial communication, TTL level. - DATA AUTO STORAGE ---- all parameters will be saved automatically after setting and therefore won't lose when power off. - OTHER FEATURES ---- with LCD display to display frequency and duty cycle value; with case; PWM output, can set frequency and duty cycle separately by buttons; frequency value is divided into 4 range and switched automatically, with high precision. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07KVYQ78K | | Best Sellers Rank | #18,787 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #2 in Function Generators | | Brand Name | DROK | | Customer Reviews | 4.5 4.5 out of 5 stars (326) | | Manufacturer | DROK | | Material Type | Plastic, Lcd | | Maximum Supply Voltage | 30 Volts (DC) | | Minimum Supply Voltage | 3.3 Volts | | Model | 200382AFA | | Mounting Type | Surface Mount | | Number of Channels | 1 | | Operating Temperature | 70 Degrees Celsius | | Output Power | 900 Milliwatts | | Part Number | 200382AFA | | Voltage | 30 Volts | ## Product Details - **Manufacturer:** DROK - **Maximum Supply Voltage:** 30 Volts (DC) - **Minimum Supply Voltage:** 3.3 Volts - **Mounting Type:** Surface Mount - **Voltage:** 30 Volts ## Images ![DROK Signal Generator, DC 3.3-30V Function Generator 5-30mA LCD Display PWM Pulse Frequency Duty Cycle Rectangular Wave Square Wave Signal Generator - Image 1](https://m.media-amazon.com/images/I/61kM9aOHkjL.jpg) ## Available Options This product comes in different **Number Of Items** options. ## Frequently Bought Together - DROK Signal Generator, DC 3.3-30V Function Generator 5-30mA LCD Display PWM Pulse Frequency Duty Cycle Rectangular Wave Square Wave Signal Generator - DROK Frequency Generator, DC 3.3V-30V 5-30mA 1Hz-150kHz Adjustable Output PWM Pulse Duty Cycle Square Wave Function Signal Generator Module - HiLetgo 2pcs 3 Channel PWM Pulse Generator Signal Generator Module Adjustable Frequency Square Wave Rectangular Wave Signal Generator Duty Cycle with LCD Display 1Hz-150Khz --- ## 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.com.sa/products/97097141-drok-signal-generator-dc-3-3-30v-function-generator-5](https://www.desertcart.com.sa/products/97097141-drok-signal-generator-dc-3-3-30v-function-generator-5) --- *Product available on Desertcart Saudi Arabia* *Store origin: SA* *Last updated: 2026-08-02*