| What it does | Free appliance age finder that decodes serial numbers to find manufacture dates
| Measure anything on your screen with pixel-perfect accuracy
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| Founded | Not given
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| Based in | US
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| Pricing model | Free
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| Pricing | Not given
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| Key features | - Supports 81 appliance brands including HVAC, water heaters and boilers
- Decodes using official manufacturer date code rules
- Uses government energy records and certification directories
- No signup required
- Shows recall notices when available
- Results labeled as Confirmed, Estimated, Candidates or No date
- 390,732 models on file
| - Smart Auto-Detect identifies your device from a database of 100+ profiles
- Three calibration methods: auto-detect, screen diagonal, and credit card
- Place rulers on any edge of the screen in any combination
- Click-to-measure distances in any direction
- Live cursor position tracking
- Dark mode with automatic system preference detection
- Support for four measurement units: cm, mm, inches, and pixels
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| What makes it different | - Independent research not affiliated with any appliance manufacturer
- Uses multiple official sources including manufacturer documents and government databases
- Model records help narrow down repeated year codes
| - No installation required—runs entirely in your web browser
- Achieves near pixel-perfect accuracy typically within 0.5mm for well-calibrated screens
- Completely free with no ads, account, or limitations
- Calibration saved locally so no need to recalibrate on each visit
- Works on tablets and mobile devices with touchscreen support
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| Free plan | Not given
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| Open source | Not given
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| Platforms | Not given
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| Public API | Not given
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | 1 ● no change since last check | 1 ● no change since last check |
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| Trust Flow (Majestic) | 2 | 0 |
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| Citation Flow (Majestic) | 13 | 17 |
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| Referring domains (Majestic) | 12 | 4 |
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Appliage
Online Ruler