Werk #20192: Fix Vutlan EMS temperature check skipping 0 °C readings
| Component | Checks & agents | ||
| Title | Fix Vutlan EMS temperature check skipping 0 °C readings | ||
| Date | Sep 14, 2026 | ||
| Level | Trivial Change | ||
| Class | Bug Fix | ||
| Compatibility | Compatible - no manual interaction needed | ||
| Checkmk versions & editions |
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Previously, the Temperature service for Vutlan EMS devices went UNKNOWN with "Item not found in monitoring data" whenever a sensor's reading was exactly 0 °C. The service was discovered correctly, but the check treated a 0 °C reading the same as "no reading available" and produced no result. This has been fixed: a genuine 0 °C reading is now checked and reported like any other value.