{"product_id":"pwm-pulse-signal-generator-colour-screen-0-20ma-4-20ma-0-10v-type-c","title":"PWM Signal Generator 0-20mA 4-20mA 0-10V Colour Screen | Gaqqee","description":"\n\u003ch2\u003eGaqqee PWM Pulse Signal Generator – Multifunctional Colour Screen Signal Source\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eGaqqee PWM Pulse Signal Generator\u003c\/strong\u003e is a professional-grade, multifunctional signal source designed for industrial control DC analogue signal debugging, electrical equipment installation and maintenance, and PWM motor speed regulation. Featuring a bright \u003cstrong\u003e2-inch TFT colour screen (320×240 pixels)\u003c\/strong\u003e, triple power supply options, and wide output ranges (0–20mA, 4–20mA, 0–10V, 0–5V, and PWM square wave), this compact instrument is an essential tool for engineers and technicians in the field or on the bench.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eMade in Mainland China.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTriple Power Supply Flexibility:\u003c\/strong\u003e Operate via external DC 24V terminal, USB-C (5V), or the optional built-in 3.7V 1500mAh lithium battery — adapt seamlessly to any work environment, from workshop bench to field installation.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWide Output Range:\u003c\/strong\u003e Voltage output ±12V (max 20mA under load, short-circuit protected); current output 0–24mA (max sampling resistance 500Ω); freely configurable output presets including 0–20mA, 4–20mA, 0–10V, and 0–5V with user-configurable engineering display values.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh-Frequency PWM Square Wave Output:\u003c\/strong\u003e Frequency adjustable from 1 Hz to 150 kHz, duty cycle adjustable 0–100%, with a fixed 5V high level and drive current under 20mA. Short-circuit protected for safe operation.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePrecision Voltage \u0026amp; Current Measurement:\u003c\/strong\u003e Measure voltage up to ±50V and current up to ±50mA, making it a versatile diagnostic and calibration tool.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e2-Inch TFT Colour Display:\u003c\/strong\u003e Clear 320×240 pixel screen with switchable Chinese\/English interface for easy reading in any language preference.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEC11 Digital Encoder Knob:\u003c\/strong\u003e 20-step-per-revolution large knob with electroplated keycaps delivers precise, tactile adjustment — no guessing, just confident control.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIntelligent Charging Indicator:\u003c\/strong\u003e LED indicator turns red during charging and green when fully charged. On-screen battery icon provides live charging status at a glance.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCE \u0026amp; RoHS Certified:\u003c\/strong\u003e Meets international safety and environmental compliance standards.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003chr\u003e\n\n\u003ch3\u003eFull Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDisplay\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2-inch TFT colour screen (320×240 pixels)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInterface Language\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSwitchable Chinese \/ English\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePower Supply Options\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDC 24V terminal \/ USB-C 5V \/ Built-in 3.7V 1500mAh Li-battery (battery model)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eVoltage Output Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e±12V (max 20mA load, short-circuit protected)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eVoltage Measurement Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e±50V\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCurrent Output Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0–24mA (max 500Ω sampling resistance, short-circuit capable)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCurrent Measurement Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e±50mA\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutput Presets\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0–20mA \/ 4–20mA \/ 0–10V \/ 0–5V (user-configurable)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePWM Output\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1–150 kHz frequency, 0–100% duty cycle, 5V high level, \u0026lt;20mA drive current\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eKnob\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eEC11 digital encoder, 20 steps\/rev, with push button\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTerminal Plug\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e15EDGK3.81 (9-pin)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOperating Environment\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0–40°C, relative humidity \u0026lt;80%\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCharging Time (battery model)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eApprox. 6+ hours; provides 1–5 hours runtime depending on output load\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCertification\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCE, RoHS\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCountry of Origin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMainland China\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003chr\u003e\n\n\u003ch3\u003eWhat's in the Box\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eSignal Generator Main Unit × 1\u003c\/li\u003e\n  \u003cli\u003eFlathead Screwdriver × 1\u003c\/li\u003e\n  \u003cli\u003eUSB-C Charging Cable × 1\u003c\/li\u003e\n  \u003cli\u003eAlligator Clip Test Leads × 4 (20AWG \/ 0.5mm²)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003chr\u003e\n\n\u003ch3\u003eUsage Notes\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eAlways switch off power before connecting cables.\u003c\/li\u003e\n  \u003cli\u003eOperating beyond specified technical parameters may cause malfunction or damage.\u003c\/li\u003e\n  \u003cli\u003eThe PWM 5V output is \u003cstrong\u003enot suitable\u003c\/strong\u003e for direct use in 12V or 24V systems, as 5V is recognised as a low level in those systems.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003chr\u003e\n\n\u003ch3\u003eYou May Also Like\u003c\/h3\u003e\n\u003cp\u003eBrowse more products from our store:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/ancient-nutrition-multi-collagen-advanced-muscle-60-capsules\"\u003eAncient Nutrition Multi Collagen Advanced Muscle 60 Capsules\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/bu-29mm-sinking-minnow-jerkbait-fishing-lure-bass-trout-pike\"\u003eB\u0026amp;U 29mm Sinking Minnow Jerkbait Lure – Bass Trout Pike\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003chr\u003e\n\n\u003cp\u003eLearn more: \u003ca href=\"https:\/\/www.osha.gov\/hand-power-tools\" target=\"_blank\" rel=\"noopener\"\u003eOSHA guidance on hand and power tools\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\n\u003ch4\u003eQ: How do I switch between PWM frequency and duty cycle adjustment on the signal generator?\u003c\/h4\u003e\n\u003cp\u003eA: Press the button to enter PWM adjustment mode. Then press the EC11 encoder knob once to toggle between frequency adjustment (1–150,000 Hz) and duty cycle adjustment (0–100%). The corresponding unit character (Hz or %) will be displayed beneath the PWM indicator on the colour screen.\u003c\/p\u003e\n\n\u003ch4\u003eQ: How do I access the help or settings menu?\u003c\/h4\u003e\n\u003cp\u003eA: Press and hold the lower button for 2 seconds to enter the main menu. Press the lower button once to toggle between the Help and Settings screens, then press the knob to enter the selected interface.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Can I use the PWM signal generator with 12V or 24V motor control systems?\u003c\/h4\u003e\n\u003cp\u003eA: The PWM square wave output has a fixed high level of 5V and a drive current under 20mA. This is not compatible with 12V or 24V systems, where 5V is treated as a logic LOW. For analogue voltage and current outputs (0–10V, 0–20mA, 4–20mA), please check your system's input specifications before use.\u003c\/p\u003e\n\n\u003ch4\u003eQ: What output signal types does this PWM signal generator support?\u003c\/h4\u003e\n\u003cp\u003eA: The generator supports voltage output (±12V, freely configurable to 0–5V, 0–10V, etc.), current output (0–24mA, configurable for 0–20mA or 4–20mA loops), and PWM square wave output (1–150 kHz, 0–100% duty cycle). Engineering display values are fully user-configurable.\u003c\/p\u003e\n\n\u003ch4\u003eQ: How long does the battery last on a full charge?\u003c\/h4\u003e\n\u003cp\u003eA: On a fully charged built-in 3.7V 1500mAh lithium battery, the generator provides approximately 1–5 hours of operation, depending on the output load. A full charge typically takes over 6 hours via the USB-C charging port.\u003c\/p\u003e\n\u003c!-- production-packaging-notice --\u003e\n\u003ch3\u003eProduction \u0026amp; Packaging Notice\u003c\/h3\u003e\n\u003cp\u003eTo maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"How do I switch between PWM frequency and duty cycle adjustment on the signal generator?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Press the button to enter PWM adjustment mode. 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A full charge typically takes over 6 hours via the USB-C charging port.\"}}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"BreadcrumbList\", \"itemListElement\": [{\"@type\": \"ListItem\", \"position\": 1, \"name\": \"Home\", \"item\": \"https:\/\/fzefzx-nb.myshopify.com\/\"}, {\"@type\": \"ListItem\", \"position\": 2, \"name\": \"Home page\", \"item\": \"https:\/\/fzefzx-nb.myshopify.com\/collections\/frontpage\"}, {\"@type\": \"ListItem\", \"position\": 3, \"name\": \"PWM Signal Generator 0-20mA 4-20mA 0-10V Colour Screen | Gaqqee\", \"item\": \"https:\/\/fzefzx-nb.myshopify.com\/products\/pwm-pulse-signal-generator-colour-screen-0-20ma-4-20ma-0-10v-type-c\"}]}\u003c\/script\u003e","brand":"P3","offers":[{"title":"Built in battery","offer_id":67615059837297,"sku":"1005011636869468-Built in battery","price":121.34,"currency_code":"USD","in_stock":true},{"title":"Without battery","offer_id":67615059870065,"sku":"1005011636869468-Without battery","price":111.51,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1046\/3431\/9217\/files\/A352e647f274f4f248eb03f7589afd27bp.webp?v=1790865328","url":"https:\/\/p3shopmart.com\/products\/pwm-pulse-signal-generator-colour-screen-0-20ma-4-20ma-0-10v-type-c","provider":"P3","version":"1.0","type":"link"}