22mm LED Digital Panel Voltmeter AC 12–500V | 5 LED Colors
22mm LED Digital Panel Voltmeter AC 12–500V | 5 LED Colors
22mm LED Digital Voltmeter Panel Indicator – AC 12–500V
Monitor AC voltage at a glance with this compact 22mm square panel voltmeter. Featuring a bright LED digital display, it mounts cleanly into any standard 22mm panel cutout, making it ideal for control panels, electrical enclosures, generator boards, DIY power projects, and workshop setups. Available in five vibrant LED colours — Red, Blue, Yellow, Green, and White — so you can match your build or colour-code multiple circuits effortlessly.
Key Features
- Wide Voltage Range: Measures AC 12–500V, covering most residential and industrial AC circuits
- Digital LED Display: Clear, easy-to-read numerical readout even in low-light environments
- 22mm Square Panel Mount: Fits standard 22mm panel cutouts for fast, secure installation
- 5 LED Colour Options: Red, Blue, Yellow, Green, and White — great for colour-coded panel builds
- No External Battery Required: Powered directly from the measured AC line — no extra wiring needed
- Compact & Durable: Rugged housing suits both DIY hobby projects and professional electrical panels
- Model: AD16-22FSV
- Made in China
Specifications
| Measurement Type | AC Voltage |
| Voltage Range | AC 12–500V |
| Display Type | Digital LED |
| Panel Cutout Size | 22mm Square |
| Available Colours | Red, Blue, Yellow, Green, White |
| Battery Required | No |
| Model Number | AD16-22FSV |
Perfect For
- Electrical control panels and enclosures
- DIY generator and inverter builds
- Workshop power distribution boards
- Home automation and electrical monitoring projects
- Industrial machinery voltage display
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Frequently Asked Questions
Q: What AC voltage range does this panel voltmeter measure?
A: This 22mm LED digital voltmeter measures AC voltages from 12V up to 500V, making it suitable for a wide variety of residential, commercial, and DIY electrical applications.
Q: Does the voltmeter need a separate power supply or batteries?
A: No separate power supply or batteries are required. The voltmeter draws its operating power directly from the AC line being measured, simplifying installation and reducing wiring complexity.
Q: What size panel hole do I need to mount this voltmeter?
A: The voltmeter is designed to fit a standard 22mm square panel cutout. Simply drill or punch a 22mm square hole in your enclosure or panel, insert the unit, and secure it with the included mounting hardware.
Q: Can I choose the LED display colour?
A: Yes! This voltmeter is available in five LED display colours — Red, Blue, Yellow, Green, and White — allowing you to colour-code multiple circuits or simply match the aesthetic of your build.