22MM Mini Digital Voltmeter AC 20-500V LED Panel Indicator
22MM Mini Digital Voltmeter AC 20-500V LED Panel Indicator
22MM Round Mini Digital Voltmeter – AC LED Voltage Indicator Panel Meter
Monitor AC voltage at a glance with this compact 22MM round digital voltmeter. 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 AC 20–500V — making it a go-to solution for control panels, machinery, switchboards, and DIY electrical projects.
With CE certification, IP65 head protection, and a rated lifespan of over 30,000 hours, 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.
Made in Mainland China.
Key Features
- Wide Voltage Range: AC 20–500V (12V–500V operating range)
- LED Display: Clear digital readout with built-in pilot lamp indicator light
- 5 Colour Options: Red, Yellow, Green, Blue, White
- 22MM Panel Mount: Standard round cutout for easy installation
- CE Certified: Meets European safety and EMC standards
- IP65 Head Protection: Dust-tight and water-jet resistant front face
- Long Lifespan: Typically 30,000+ continuous working hours
- Measurement Accuracy: ±1% error margin
- Frequency: AC 50–60Hz compatible
- Operating Temperature: -25°C to +55°C
- Vibration Resistance: 2–80Hz at 0.7g acceleration
- Relative Humidity: ≤98%
Technical Specifications
| Model | AD16-22DSV |
| Brand | CKCTINNER |
| Mounting Diameter | 22MM |
| Power Source | AC |
| Voltage Range | AC 20–500V |
| Rated Voltage | 240V |
| Frequency | AC 50–60Hz |
| Working Frequency Voltage | 2.5kV (AC), 1 min |
| Leakage Index | CTI ≥100 |
| Rated Temp | T90 |
| Protection Degree | IP65 (Head) |
| Pollution Rank | Grade III, Installation Category III |
| Certification | CE |
| Origin | Mainland China |
Perfect For
- Industrial control panels and switchboards
- Electrical test benches and workshops
- Generator and power monitoring systems
- DIY home automation and electronics projects
- Machinery and equipment voltage monitoring
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Frequently Asked Questions
Q: What AC voltage range does this 22MM digital voltmeter measure?
A: 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%.
Q: What panel cutout size is required to install this voltmeter?
A: 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.
Q: Is this voltmeter suitable for outdoor or dusty environments?
A: Yes. The front face of this voltmeter carries an IP65 protection rating, meaning it is dust-tight and resistant to water jets, making it well-suited for industrial, workshop, or partially exposed outdoor panel applications.
Q: What indicator light colours are available?
A: The voltmeter is available in five LED indicator light colours: Red, Yellow, Green, Blue, and White. This allows you to colour-code your control panel for easy visual status identification.