--- product_id: 581712633 title: "Frequency Generator, DC 3.3V-30V 5-30mA 1Hz-150kHz Adjustable Output PWM Pulse Duty Cycle Square Wave Function Signal Generator Module" price: "āļŋ3016" currency: THB in_stock: true reviews_count: 5 url: https://www.desertcart.co.th/products/581712633-frequency-generator-dc-3-3v-30v-5-30ma-1hz-150khz store_origin: TH region: Thailand --- # 1Hz-150kHz Frequency Range 2% Frequency Accuracy 3.3V-30V Voltage Range Frequency Generator, DC 3.3V-30V 5-30mA 1Hz-150kHz Adjustable Output PWM Pulse Duty Cycle Square Wave Function Signal Generator Module **Price:** āļŋ3016 **Availability:** ✅ In Stock ## Summary > 🔧 Power Your Projects with Precision! ## Quick Answers - **What is this?** Frequency Generator, DC 3.3V-30V 5-30mA 1Hz-150kHz Adjustable Output PWM Pulse Duty Cycle Square Wave Function Signal Generator Module - **How much does it cost?** āļŋ3016 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.th](https://www.desertcart.co.th/products/581712633-frequency-generator-dc-3-3v-30v-5-30ma-1hz-150khz) ## 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 - â€Ē **Smart Memory:** All your settings auto-save, ensuring you never lose your configurations. - â€Ē **Unlock Precision:** Experience unparalleled accuracy with a frequency range of 1Hz-150kHz. - â€Ē **Versatile Voltage:** Adaptable working voltage from 3.3V to 30V for diverse applications. - â€Ē **Customizable Control:** Set and adjust PWM output with separate frequency and duty cycle settings. - â€Ē **User-Friendly Display:** Clear LCD screen for effortless monitoring of frequency and duty cycle. ## Overview The DROK Frequency Generator is a versatile signal generator module designed for professionals, offering adjustable output from 1Hz to 150kHz, a wide voltage range of 3.3V to 30V, and a user-friendly LCD display. With features like a lock function, customizable PWM output, and smart memory for settings, this module is perfect for a variety of applications in electronics and engineering. ## Description DROK Function Generator Parameter: Working voltage: DC 3.3V-30V Frequency range: normal mode 1Hz-150kHz; accurate mode 1Hz-15kHz Frequency accuracy: 2% in each range Signal load capacity: output current about 5-30mA Output amplitude: PWM amplitude equals to input voltage value Working temperature: -20℃~+70℃ Duty cycle range: 0-100% Features: With 2 modes. Operated by code potentiometer. With lock function to avoid misoperation. Duty cycle upper and lower bounds is adjustable. 2 Modes: Normal mode: Frequency range 1Hz-150kHz, duty cycle 000-100%, duty cycle step 1% Accurate mode: Frequency range 1Hz-15kHz, duty cycle 00.0-100%, duty cycle step 0.1% 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). Frequency Display Instruction: The frequency is divided into 4 ranges and switched automatically. 1. XXX: minimum unit 1Hz, value range 1Hz~999Hz. 2. X.XX: minimum unit 0.01kHz, value range 1.00kHz~9.99kHz. 3. XX.X: minimum unit 0.1kHz; value range 10.0kHz~99.9kHz. 4. X.X.X: minimum unit 1kHz; value range 1kHz~150kHz. e.g. Frequency displays 100 represents 100Hz; displays 1.01 represents 1.01kHz; displays 54.1 represents 54.1kHz; displays 1.2.4 represents 124kHz Package Included: 1x Function Signal Generator Review: Worked perfectly to modulate the Mercedes electric fan I installed on my Jeep. Review: El vendedor cumplio lo comprometido en su oferta y el elemento electronico esta funcionando correctamente, de igual forma fue entregado muy en tiempo. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07P848DYQ | | Customer reviews | 4.2 4.2 out of 5 stars (243) | | Item model number | 200393 | | Label | DROK | | Manufacturer | DROK | | Package Dimensions | 10.21 x 9.3 x 3.99 cm; 10 g | ## Product Details - **Brand:** DROK - **Color:** Black - **Display Type:** LCD - **Item Weight:** 0.01 Kilograms - **Voltage:** 30 Volts (DC) ## Images ![Frequency Generator, DC 3.3V-30V 5-30mA 1Hz-150kHz Adjustable Output PWM Pulse Duty Cycle Square Wave Function Signal Generator Module - Image 1](https://m.media-amazon.com/images/I/61XoNzzshfL.jpg) ## Questions & Answers **Q: Will this work as a 7.83 hz (schumann resonance) generator to infuence ambient room frequency....or does this have totally unrelated applications?** A: First off I know nothing about the application that you are interested in using this for. That being said this unit doesn't have the ability to dial down to .83 hz only whole numbers. The output is DC square wave. Hope this helps. **Q: how do you keep the control on frequency instead of keeping defaulting to duty cycle setting? It is very difficult to control frequency due to this.** A: This is not the pulse generator you are looking for. This is a fixed frequency, varible width PEM generator. I think what you are looking for is something like this:"Radio Control Servo ESC Consistency Digital Tester 1-4S for Speed Controller" or "Electronic Speed Controller Servo Tester ESC for RC Airplane Helicopters" Both on EBAA **Q: how can I connect this device to speakers and what do I need to do so?** A: this is a frequency generator not a radio. even if you could all you would get is noise. **Q: Will this work for a diy "chaterbox" which would push no more than 20-24v in a pulse format every 3-5 seconds. with 2 9v batteries as input?** A: As long as you do not have a load that draws more than 25ma ## Customer Reviews ### ⭐⭐⭐⭐⭐ Review *by M***R on 3 February 2026* Worked perfectly to modulate the Mercedes electric fan I installed on my Jeep. ### ⭐⭐⭐⭐⭐ Review *by H***N on 10 May 2023* El vendedor cumplio lo comprometido en su oferta y el elemento electronico esta funcionando correctamente, de igual forma fue entregado muy en tiempo. ### ⭐⭐⭐⭐⭐ Review *by L***N on 7 November 2024* Very easy to use device ## Frequently Bought Together - DROK Frequency Generator, DC 3.3V-30V 5-30mA 1Hz-150kHz Adjustable Output PWM Pulse Duty Cycle Square Wave Function Signal Generator Module - DROK Signal Generator, DC 3.3-30V Function Generator 5-30mA LCD Display PWM Pulse Frequency Duty Cycle Rectangular Wave Square Wave Signal Generator - 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.co.th/products/581712633-frequency-generator-dc-3-3v-30v-5-30ma-1hz-150khz](https://www.desertcart.co.th/products/581712633-frequency-generator-dc-3-3v-30v-5-30ma-1hz-150khz) --- *Product available on Desertcart Thailand* *Store origin: TH* *Last updated: 2026-04-28*