{"product_id":"22mm-mini-digital-voltmeter-ac-20-500v-led-voltage-indicator-panel-meter","title":"22MM Mini Digital Voltmeter AC 20-500V LED Panel Indicator","description":"\n\u003ch2\u003e22MM Round Mini Digital Voltmeter – AC LED Voltage Indicator Panel Meter\u003c\/h2\u003e\n\u003cp\u003eMonitor AC voltage at a glance with this compact \u003cstrong\u003e22MM round digital voltmeter\u003c\/strong\u003e. Featuring a bright LED display and a built-in pilot lamp, this panel-mount indicator delivers real-time voltage readings across a wide range of \u003cstrong\u003eAC 20–500V\u003c\/strong\u003e — making it a go-to solution for control panels, machinery, switchboards, and DIY electrical projects.\u003c\/p\u003e\n\n\u003cp\u003eWith CE certification, IP65 head protection, and a rated lifespan of over \u003cstrong\u003e30,000 hours\u003c\/strong\u003e, this voltmeter is built for reliability in demanding industrial and workshop environments. Available in five indicator light colours — Red, Yellow, Green, Blue, and White — it's easy to colour-code your panel for instant visual status recognition.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eMade in Mainland China.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWide Voltage Range:\u003c\/strong\u003e AC 20–500V (12V–500V operating range)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLED Display:\u003c\/strong\u003e Clear digital readout with built-in pilot lamp indicator light\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e5 Colour Options:\u003c\/strong\u003e Red, Yellow, Green, Blue, White\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e22MM Panel Mount:\u003c\/strong\u003e Standard round cutout for easy installation\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCE Certified:\u003c\/strong\u003e Meets European safety and EMC standards\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIP65 Head Protection:\u003c\/strong\u003e Dust-tight and water-jet resistant front face\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLong Lifespan:\u003c\/strong\u003e Typically 30,000+ continuous working hours\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMeasurement Accuracy:\u003c\/strong\u003e ±1% error margin\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFrequency:\u003c\/strong\u003e AC 50–60Hz compatible\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOperating Temperature:\u003c\/strong\u003e -25°C to +55°C\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVibration Resistance:\u003c\/strong\u003e 2–80Hz at 0.7g acceleration\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRelative Humidity:\u003c\/strong\u003e ≤98%\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAD16-22DSV\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCKCTINNER\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMounting Diameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e22MM\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePower Source\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAC\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eVoltage Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAC 20–500V\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRated Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e240V\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFrequency\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAC 50–60Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWorking Frequency Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2.5kV (AC), 1 min\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLeakage Index\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCTI ≥100\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRated Temp\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eT90\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProtection Degree\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eIP65 (Head)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePollution Rank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eGrade III, Installation Category III\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCertification\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCE\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOrigin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMainland China\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003ePerfect For\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eIndustrial control panels and switchboards\u003c\/li\u003e\n  \u003cli\u003eElectrical test benches and workshops\u003c\/li\u003e\n  \u003cli\u003eGenerator and power monitoring systems\u003c\/li\u003e\n  \u003cli\u003eDIY home automation and electronics projects\u003c\/li\u003e\n  \u003cli\u003eMachinery and equipment voltage monitoring\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eRelated Products You May Like\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/air-compressor-pressure-gauge-0-10-0-12-0-25-bar-hydraulic-diy\"\u003eAir Compressor Pressure Gauge 0-10\/0-12\/0-25 Bar | DIY Tool\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/electromagnetic-induction-tester-coil-motherboard-fault-detector\"\u003eElectromagnetic Induction Tester – Coil \u0026amp; Circuit Fault Detector\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eLearn more: \u003ca href=\"https:\/\/www.osha.gov\/personal-protective-equipment\" target=\"_blank\" rel=\"noopener\"\u003eOSHA on personal protective equipment\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What AC voltage range does this 22MM digital voltmeter measure?\u003c\/h4\u003e\n\u003cp\u003eA: This mini digital voltmeter measures AC voltages from 20V up to 500V, with an operating range of 12V–500V AC. It is compatible with standard 50–60Hz AC supplies and has a measurement accuracy of ±1%.\u003c\/p\u003e\n\n\u003ch4\u003eQ: What panel cutout size is required to install this voltmeter?\u003c\/h4\u003e\n\u003cp\u003eA: The voltmeter uses a standard \u003cstrong\u003e22MM round panel cutout\u003c\/strong\u003e, which is a widely used size in industrial and DIY control panels, making installation quick and straightforward.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Is this voltmeter suitable for outdoor or dusty environments?\u003c\/h4\u003e\n\u003cp\u003eA: Yes. The front face of this voltmeter carries an \u003cstrong\u003eIP65 protection rating\u003c\/strong\u003e, meaning it is dust-tight and resistant to water jets, making it well-suited for industrial, workshop, or partially exposed outdoor panel applications.\u003c\/p\u003e\n\n\u003ch4\u003eQ: What indicator light colours are available?\u003c\/h4\u003e\n\u003cp\u003eA: The voltmeter is available in five LED indicator light colours: \u003cstrong\u003eRed, Yellow, Green, Blue, and White\u003c\/strong\u003e. This allows you to colour-code your control panel for easy visual status identification.\u003c\/p\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What AC voltage range does this 22MM digital voltmeter measure?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"This mini digital voltmeter measures AC voltages from 20V up to 500V, with an operating range of 12V–500V AC. It is compatible with standard 50–60Hz AC supplies and has a measurement accuracy of ±1%.\"}}, {\"@type\": \"Question\", \"name\": \"What panel cutout size is required to install this voltmeter?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The voltmeter uses a standard 22MM round panel cutout, which is a widely used size in industrial and DIY control panels, making installation quick and straightforward.\"}}, {\"@type\": \"Question\", \"name\": \"Is this voltmeter suitable for outdoor or dusty environments?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes. 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