diff --git a/doc/check-health.d/notification-01-voltage.avif b/doc/check-health.d/notification-01-voltage.avif
new file mode 100644
index 0000000..f4d6005
Binary files /dev/null and b/doc/check-health.d/notification-01-voltage.avif differ
diff --git a/doc/check-health.d/notification-01-voltage.svg b/doc/check-health.d/notification-01-voltage.svg
deleted file mode 100644
index 4c9caad..0000000
--- a/doc/check-health.d/notification-01-voltage.svg
+++ /dev/null
@@ -1,36 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<svg id="svg8" width="443.78" height="123.78" version="1.1" viewBox="0 0 117.42 32.75" xmlns="http://www.w3.org/2000/svg" xmlns:cc="http://creativecommons.org/ns#" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#">
- <metadata id="metadata5">
-  <rdf:RDF>
-   <cc:Work rdf:about="">
-    <dc:format>image/svg+xml</dc:format>
-    <dc:type rdf:resource="http://purl.org/dc/dcmitype/StillImage"/>
-   </cc:Work>
-  </rdf:RDF>
- </metadata>
- <g id="layer1" transform="translate(16.375 11.083)">
-  <rect id="rect857" x="-15.875" y="-10.583" width="116.42" height="31.75" rx="1.4552" fill="#e6e6e6" stroke="#6c5d53" stroke-linecap="round" stroke-linejoin="round"/>
-  <g id="g884" transform="matrix(.5 0 0 .5 -12.406 -7.1146)" stroke-width="2">
-   <path id="path899" d="m23.177 23.177c-2.9635 2.9635-17.991 2.9635-20.955 0-2.9635-2.9635-2.9635-17.991 0-20.955 2.9635-2.9635 17.991-2.9635 20.955 0 2.9635 2.9635 2.9635 17.991 0 20.955z" fill="#fff"/>
-   <g id="g871">
-    <g id="text837" stroke-width=".52916px" aria-label="#!rsc">
-     <path id="path851" d="m7.4832 16.646v-1.0239h-0.54606l0.16577-1.2774h-1.2774l-0.16577 1.2774h-0.97511l0.16577-1.2774h-1.2774l-0.16577 1.2774h-0.70208v1.0239h0.56556l-0.24378 1.8722h-0.68257v1.0239h0.54606l-0.18527 1.3944h1.2774l0.18527-1.3944h0.97511l-0.18527 1.3944h1.2774l0.18527-1.3944h0.70208v-1.0239h-0.56556l0.24378-1.8722zm-2.2037 1.8722h-0.97511l0.24378-1.8722h0.97511z"/>
-     <path id="path853" d="m9.6187 14.179h-1.6382l0.19502 4.271h1.2481zm-0.81909 5.1583c-0.48755 0-0.8776 0.39979-0.8776 0.8776 0 0.48755 0.39004 0.88735 0.8776 0.88735 0.4973 0 0.88735-0.39979 0.88735-0.88735 0-0.4778-0.39004-0.8776-0.88735-0.8776z"/>
-     <path id="path855" d="m13.373 15.612c-0.59482 0-1.1019 0.42905-1.3359 1.1506l-0.13652-1.0044h-1.3359v5.1778h1.5407v-2.6035c0.17552-0.77033 0.4388-1.2286 1.0726-1.2286 0.16577 0 0.30228 0.02925 0.46805 0.06826l0.24378-1.4919c-0.17552-0.04875-0.32178-0.06826-0.51681-0.06826z"/>
-     <path id="path857" d="m16.181 15.592c-1.3066 0-2.116 0.69233-2.116 1.5797 0 0.79959 0.50706 1.3261 1.5309 1.6187 0.9361 0.26328 1.0921 0.37054 1.0921 0.72158 0 0.31203-0.28278 0.48755-0.75083 0.48755-0.50706 0-0.98486-0.20477-1.3749-0.50706l-0.75083 0.83859c0.50706 0.4583 1.2676 0.77033 2.1647 0.77033 1.2871 0 2.3012-0.63382 2.3012-1.7064 0-0.92635-0.57531-1.3554-1.5992-1.6479-0.92635-0.27303-1.0629-0.39004-1.0629-0.66307 0-0.23402 0.20477-0.39004 0.62407-0.39004 0.44855 0 0.8776 0.14627 1.2774 0.39979l0.56556-0.86784c-0.4778-0.39004-1.1506-0.63382-1.9015-0.63382z"/>
-     <path id="path859" d="m21.281 15.592c-1.5504 0-2.5353 1.1506-2.5353 2.7986 0 1.6382 0.97511 2.7108 2.5645 2.7108 0.71183 0 1.2676-0.23403 1.7454-0.61432l-0.67282-0.9556c-0.37054 0.23403-0.62407 0.35104-0.99461 0.35104-0.61432 0-1.0239-0.35104-1.0239-1.5017 0-1.1604 0.38029-1.6089 1.0434-1.6089 0.35104 0 0.65332 0.11701 0.98486 0.37054l0.66307-0.9166c-0.4973-0.4193-1.0531-0.63382-1.7747-0.63382z"/>
-    </g>
-    <g id="g1542" transform="matrix(2 0 0 2 -.41134 3.175)" fill="#676867" fill-rule="evenodd" stroke-width=".26458">
-     <path id="path943" d="m4.9596-1.0196c0.40797 2.8312 1.9272 4.5499 5.0239 4.691-2.918 1.1164-5.9253-1.5076-5.0239-4.691"/>
-     <path id="path945" d="m3.3407-0.52096c0.034969-0.00777 0.038854 0.015542 0.041445 0.041445 0.098431 1.8054 0.85998 3.1744 1.8689 4.1108 1.0089 0.93639 2.3636 1.6941 4.274 1.6604-3.5772 1.4247-7.337-1.9984-6.1856-5.8126"/>
-    </g>
-   </g>
-  </g>
-  <text id="text4811" transform="matrix(.26458 0 0 .26458 -45.077 -6.6039)" x="-248.88142" fill="#000000" font-family="'Fira Mono', 'Roboto Mono', monospace" font-size="12px" letter-spacing="0px" stroke-width="1px" word-spacing="0px" style="font-variant-caps:normal;font-variant-east-asian:normal;font-variant-ligatures:normal;font-variant-numeric:normal;line-height:15px;shape-inside:url(#rect4813);white-space:pre" xml:space="preserve"><tspan id="tspan13643" x="180" y="10.85">[MikroTik] ⚡📉 Health warning: voltage
-</tspan><tspan id="tspan13645" x="180" y="25.85">
-</tspan><tspan id="tspan13647" x="180" y="40.85">The voltage on MikroTik jumped more than 10%.
-</tspan><tspan id="tspan13649" x="180" y="55.85">
-</tspan><tspan id="tspan13651" x="180" y="70.85">old value: 16.2V
-</tspan><tspan id="tspan13653" x="180" y="85.85">new value: 12.4V</tspan></text>
- </g>
-</svg>
diff --git a/doc/check-health.d/notification-02-temperature-high.avif b/doc/check-health.d/notification-02-temperature-high.avif
new file mode 100644
index 0000000..1a93610
Binary files /dev/null and b/doc/check-health.d/notification-02-temperature-high.avif differ
diff --git a/doc/check-health.d/notification-02-temperature-high.svg b/doc/check-health.d/notification-02-temperature-high.svg
deleted file mode 100644
index 0ab9488..0000000
--- a/doc/check-health.d/notification-02-temperature-high.svg
+++ /dev/null
@@ -1,33 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<svg id="svg8" width="503.78" height="83.78" version="1.1" viewBox="0 0 133.29 22.167" xmlns="http://www.w3.org/2000/svg" xmlns:cc="http://creativecommons.org/ns#" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#">
- <metadata id="metadata5">
-  <rdf:RDF>
-   <cc:Work rdf:about="">
-    <dc:format>image/svg+xml</dc:format>
-    <dc:type rdf:resource="http://purl.org/dc/dcmitype/StillImage"/>
-   </cc:Work>
-  </rdf:RDF>
- </metadata>
- <g id="layer1" transform="translate(16.375 11.083)">
-  <rect id="rect857" x="-15.875" y="-10.583" width="132.29" height="21.167" rx="1.6536" fill="#e6e6e6" stroke="#6c5d53" stroke-linecap="round" stroke-linejoin="round"/>
-  <g id="g884" transform="matrix(.5 0 0 .5 -12.406 -7.1146)" stroke-width="2">
-   <path id="path899" d="m23.177 23.177c-2.9635 2.9635-17.991 2.9635-20.955 0-2.9635-2.9635-2.9635-17.991 0-20.955 2.9635-2.9635 17.991-2.9635 20.955 0 2.9635 2.9635 2.9635 17.991 0 20.955z" fill="#fff"/>
-   <g id="g871">
-    <g id="text837" stroke-width=".52916px" aria-label="#!rsc">
-     <path id="path851" d="m7.4832 16.646v-1.0239h-0.54606l0.16577-1.2774h-1.2774l-0.16577 1.2774h-0.97511l0.16577-1.2774h-1.2774l-0.16577 1.2774h-0.70208v1.0239h0.56556l-0.24378 1.8722h-0.68257v1.0239h0.54606l-0.18527 1.3944h1.2774l0.18527-1.3944h0.97511l-0.18527 1.3944h1.2774l0.18527-1.3944h0.70208v-1.0239h-0.56556l0.24378-1.8722zm-2.2037 1.8722h-0.97511l0.24378-1.8722h0.97511z"/>
-     <path id="path853" d="m9.6187 14.179h-1.6382l0.19502 4.271h1.2481zm-0.81909 5.1583c-0.48755 0-0.8776 0.39979-0.8776 0.8776 0 0.48755 0.39004 0.88735 0.8776 0.88735 0.4973 0 0.88735-0.39979 0.88735-0.88735 0-0.4778-0.39004-0.8776-0.88735-0.8776z"/>
-     <path id="path855" d="m13.373 15.612c-0.59482 0-1.1019 0.42905-1.3359 1.1506l-0.13652-1.0044h-1.3359v5.1778h1.5407v-2.6035c0.17552-0.77033 0.4388-1.2286 1.0726-1.2286 0.16577 0 0.30228 0.02925 0.46805 0.06826l0.24378-1.4919c-0.17552-0.04875-0.32178-0.06826-0.51681-0.06826z"/>
-     <path id="path857" d="m16.181 15.592c-1.3066 0-2.116 0.69233-2.116 1.5797 0 0.79959 0.50706 1.3261 1.5309 1.6187 0.9361 0.26328 1.0921 0.37054 1.0921 0.72158 0 0.31203-0.28278 0.48755-0.75083 0.48755-0.50706 0-0.98486-0.20477-1.3749-0.50706l-0.75083 0.83859c0.50706 0.4583 1.2676 0.77033 2.1647 0.77033 1.2871 0 2.3012-0.63382 2.3012-1.7064 0-0.92635-0.57531-1.3554-1.5992-1.6479-0.92635-0.27303-1.0629-0.39004-1.0629-0.66307 0-0.23402 0.20477-0.39004 0.62407-0.39004 0.44855 0 0.8776 0.14627 1.2774 0.39979l0.56556-0.86784c-0.4778-0.39004-1.1506-0.63382-1.9015-0.63382z"/>
-     <path id="path859" d="m21.281 15.592c-1.5504 0-2.5353 1.1506-2.5353 2.7986 0 1.6382 0.97511 2.7108 2.5645 2.7108 0.71183 0 1.2676-0.23403 1.7454-0.61432l-0.67282-0.9556c-0.37054 0.23403-0.62407 0.35104-0.99461 0.35104-0.61432 0-1.0239-0.35104-1.0239-1.5017 0-1.1604 0.38029-1.6089 1.0434-1.6089 0.35104 0 0.65332 0.11701 0.98486 0.37054l0.66307-0.9166c-0.4973-0.4193-1.0531-0.63382-1.7747-0.63382z"/>
-    </g>
-    <g id="g1542" transform="matrix(2 0 0 2 -.41134 3.175)" fill="#676867" fill-rule="evenodd" stroke-width=".26458">
-     <path id="path943" d="m4.9596-1.0196c0.40797 2.8312 1.9272 4.5499 5.0239 4.691-2.918 1.1164-5.9253-1.5076-5.0239-4.691"/>
-     <path id="path945" d="m3.3407-0.52096c0.034969-0.00777 0.038854 0.015542 0.041445 0.041445 0.098431 1.8054 0.85998 3.1744 1.8689 4.1108 1.0089 0.93639 2.3636 1.6941 4.274 1.6604-3.5772 1.4247-7.337-1.9984-6.1856-5.8126"/>
-    </g>
-   </g>
-  </g>
-  <text id="text4811" transform="matrix(.26458 0 0 .26458 -45.077 -6.6039)" x="-248.88142" fill="#000000" font-family="'Fira Mono', 'Roboto Mono', monospace" font-size="12px" letter-spacing="0px" stroke-width="1px" word-spacing="0px" style="font-variant-caps:normal;font-variant-east-asian:normal;font-variant-ligatures:normal;font-variant-numeric:normal;line-height:15px;shape-inside:url(#rect4813);white-space:pre" xml:space="preserve"><tspan id="tspan13709" x="180" y="10.85">[MikroTik] 🔥 Health warning: temperature
-</tspan><tspan id="tspan13711" x="180" y="25.85">
-</tspan><tspan id="tspan13713" x="180" y="40.85">The temperature on MikroTik is above threshold: 51°C</tspan></text>
- </g>
-</svg>
diff --git a/doc/check-health.d/notification-03-temperature-ok.avif b/doc/check-health.d/notification-03-temperature-ok.avif
new file mode 100644
index 0000000..3bb9c68
Binary files /dev/null and b/doc/check-health.d/notification-03-temperature-ok.avif differ
diff --git a/doc/check-health.d/notification-03-temperature-ok.svg b/doc/check-health.d/notification-03-temperature-ok.svg
deleted file mode 100644
index 180d13f..0000000
--- a/doc/check-health.d/notification-03-temperature-ok.svg
+++ /dev/null
@@ -1,33 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<svg id="svg8" width="533.78" height="83.78" version="1.1" viewBox="0 0 141.23 22.167" xmlns="http://www.w3.org/2000/svg" xmlns:cc="http://creativecommons.org/ns#" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#">
- <metadata id="metadata5">
-  <rdf:RDF>
-   <cc:Work rdf:about="">
-    <dc:format>image/svg+xml</dc:format>
-    <dc:type rdf:resource="http://purl.org/dc/dcmitype/StillImage"/>
-   </cc:Work>
-  </rdf:RDF>
- </metadata>
- <g id="layer1" transform="translate(16.375 11.083)">
-  <rect id="rect857" x="-15.875" y="-10.583" width="140.23" height="21.167" rx="1.7529" fill="#e6e6e6" stroke="#6c5d53" stroke-linecap="round" stroke-linejoin="round"/>
-  <g id="g884" transform="matrix(.5 0 0 .5 -12.406 -7.1146)" stroke-width="2">
-   <path id="path899" d="m23.177 23.177c-2.9635 2.9635-17.991 2.9635-20.955 0-2.9635-2.9635-2.9635-17.991 0-20.955 2.9635-2.9635 17.991-2.9635 20.955 0 2.9635 2.9635 2.9635 17.991 0 20.955z" fill="#fff"/>
-   <g id="g871">
-    <g id="text837" stroke-width=".52916px" aria-label="#!rsc">
-     <path id="path851" d="m7.4832 16.646v-1.0239h-0.54606l0.16577-1.2774h-1.2774l-0.16577 1.2774h-0.97511l0.16577-1.2774h-1.2774l-0.16577 1.2774h-0.70208v1.0239h0.56556l-0.24378 1.8722h-0.68257v1.0239h0.54606l-0.18527 1.3944h1.2774l0.18527-1.3944h0.97511l-0.18527 1.3944h1.2774l0.18527-1.3944h0.70208v-1.0239h-0.56556l0.24378-1.8722zm-2.2037 1.8722h-0.97511l0.24378-1.8722h0.97511z"/>
-     <path id="path853" d="m9.6187 14.179h-1.6382l0.19502 4.271h1.2481zm-0.81909 5.1583c-0.48755 0-0.8776 0.39979-0.8776 0.8776 0 0.48755 0.39004 0.88735 0.8776 0.88735 0.4973 0 0.88735-0.39979 0.88735-0.88735 0-0.4778-0.39004-0.8776-0.88735-0.8776z"/>
-     <path id="path855" d="m13.373 15.612c-0.59482 0-1.1019 0.42905-1.3359 1.1506l-0.13652-1.0044h-1.3359v5.1778h1.5407v-2.6035c0.17552-0.77033 0.4388-1.2286 1.0726-1.2286 0.16577 0 0.30228 0.02925 0.46805 0.06826l0.24378-1.4919c-0.17552-0.04875-0.32178-0.06826-0.51681-0.06826z"/>
-     <path id="path857" d="m16.181 15.592c-1.3066 0-2.116 0.69233-2.116 1.5797 0 0.79959 0.50706 1.3261 1.5309 1.6187 0.9361 0.26328 1.0921 0.37054 1.0921 0.72158 0 0.31203-0.28278 0.48755-0.75083 0.48755-0.50706 0-0.98486-0.20477-1.3749-0.50706l-0.75083 0.83859c0.50706 0.4583 1.2676 0.77033 2.1647 0.77033 1.2871 0 2.3012-0.63382 2.3012-1.7064 0-0.92635-0.57531-1.3554-1.5992-1.6479-0.92635-0.27303-1.0629-0.39004-1.0629-0.66307 0-0.23402 0.20477-0.39004 0.62407-0.39004 0.44855 0 0.8776 0.14627 1.2774 0.39979l0.56556-0.86784c-0.4778-0.39004-1.1506-0.63382-1.9015-0.63382z"/>
-     <path id="path859" d="m21.281 15.592c-1.5504 0-2.5353 1.1506-2.5353 2.7986 0 1.6382 0.97511 2.7108 2.5645 2.7108 0.71183 0 1.2676-0.23403 1.7454-0.61432l-0.67282-0.9556c-0.37054 0.23403-0.62407 0.35104-0.99461 0.35104-0.61432 0-1.0239-0.35104-1.0239-1.5017 0-1.1604 0.38029-1.6089 1.0434-1.6089 0.35104 0 0.65332 0.11701 0.98486 0.37054l0.66307-0.9166c-0.4973-0.4193-1.0531-0.63382-1.7747-0.63382z"/>
-    </g>
-    <g id="g1542" transform="matrix(2 0 0 2 -.41134 3.175)" fill="#676867" fill-rule="evenodd" stroke-width=".26458">
-     <path id="path943" d="m4.9596-1.0196c0.40797 2.8312 1.9272 4.5499 5.0239 4.691-2.918 1.1164-5.9253-1.5076-5.0239-4.691"/>
-     <path id="path945" d="m3.3407-0.52096c0.034969-0.00777 0.038854 0.015542 0.041445 0.041445 0.098431 1.8054 0.85998 3.1744 1.8689 4.1108 1.0089 0.93639 2.3636 1.6941 4.274 1.6604-3.5772 1.4247-7.337-1.9984-6.1856-5.8126"/>
-    </g>
-   </g>
-  </g>
-  <text id="text4811" transform="matrix(.26458 0 0 .26458 -45.077 -6.6039)" x="-248.88142" fill="#000000" font-family="'Fira Mono', 'Roboto Mono', monospace" font-size="12px" letter-spacing="0px" stroke-width="1px" word-spacing="0px" style="font-variant-caps:normal;font-variant-east-asian:normal;font-variant-ligatures:normal;font-variant-numeric:normal;line-height:15px;shape-inside:url(#rect4813);white-space:pre" xml:space="preserve"><tspan id="tspan13679" x="180" y="10.85">[MikroTik] ✅ Health recovery: temperature
-</tspan><tspan id="tspan13681" x="180" y="25.85">
-</tspan><tspan id="tspan13683" x="180" y="40.85">The temperature on MikroTik dropped below threshold: 48°C</tspan></text>
- </g>
-</svg>
diff --git a/doc/check-health.d/notification-04-psu-fail.avif b/doc/check-health.d/notification-04-psu-fail.avif
new file mode 100644
index 0000000..a4e52a9
Binary files /dev/null and b/doc/check-health.d/notification-04-psu-fail.avif differ
diff --git a/doc/check-health.d/notification-04-psu-fail.svg b/doc/check-health.d/notification-04-psu-fail.svg
deleted file mode 100644
index f7efe4b..0000000
--- a/doc/check-health.d/notification-04-psu-fail.svg
+++ /dev/null
@@ -1,33 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<svg id="svg8" width="513.78" height="83.78" version="1.1" viewBox="0 0 135.94 22.167" xmlns="http://www.w3.org/2000/svg" xmlns:cc="http://creativecommons.org/ns#" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#">
- <metadata id="metadata5">
-  <rdf:RDF>
-   <cc:Work rdf:about="">
-    <dc:format>image/svg+xml</dc:format>
-    <dc:type rdf:resource="http://purl.org/dc/dcmitype/StillImage"/>
-   </cc:Work>
-  </rdf:RDF>
- </metadata>
- <g id="layer1" transform="translate(16.375 11.083)">
-  <rect id="rect857" x="-15.875" y="-10.583" width="134.94" height="21.167" rx="1.6867" fill="#e6e6e6" stroke="#6c5d53" stroke-linecap="round" stroke-linejoin="round"/>
-  <g id="g884" transform="matrix(.5 0 0 .5 -12.406 -7.1146)" stroke-width="2">
-   <path id="path899" d="m23.177 23.177c-2.9635 2.9635-17.991 2.9635-20.955 0-2.9635-2.9635-2.9635-17.991 0-20.955 2.9635-2.9635 17.991-2.9635 20.955 0 2.9635 2.9635 2.9635 17.991 0 20.955z" fill="#fff"/>
-   <g id="g871">
-    <g id="text837" stroke-width=".52916px" aria-label="#!rsc">
-     <path id="path851" d="m7.4832 16.646v-1.0239h-0.54606l0.16577-1.2774h-1.2774l-0.16577 1.2774h-0.97511l0.16577-1.2774h-1.2774l-0.16577 1.2774h-0.70208v1.0239h0.56556l-0.24378 1.8722h-0.68257v1.0239h0.54606l-0.18527 1.3944h1.2774l0.18527-1.3944h0.97511l-0.18527 1.3944h1.2774l0.18527-1.3944h0.70208v-1.0239h-0.56556l0.24378-1.8722zm-2.2037 1.8722h-0.97511l0.24378-1.8722h0.97511z"/>
-     <path id="path853" d="m9.6187 14.179h-1.6382l0.19502 4.271h1.2481zm-0.81909 5.1583c-0.48755 0-0.8776 0.39979-0.8776 0.8776 0 0.48755 0.39004 0.88735 0.8776 0.88735 0.4973 0 0.88735-0.39979 0.88735-0.88735 0-0.4778-0.39004-0.8776-0.88735-0.8776z"/>
-     <path id="path855" d="m13.373 15.612c-0.59482 0-1.1019 0.42905-1.3359 1.1506l-0.13652-1.0044h-1.3359v5.1778h1.5407v-2.6035c0.17552-0.77033 0.4388-1.2286 1.0726-1.2286 0.16577 0 0.30228 0.02925 0.46805 0.06826l0.24378-1.4919c-0.17552-0.04875-0.32178-0.06826-0.51681-0.06826z"/>
-     <path id="path857" d="m16.181 15.592c-1.3066 0-2.116 0.69233-2.116 1.5797 0 0.79959 0.50706 1.3261 1.5309 1.6187 0.9361 0.26328 1.0921 0.37054 1.0921 0.72158 0 0.31203-0.28278 0.48755-0.75083 0.48755-0.50706 0-0.98486-0.20477-1.3749-0.50706l-0.75083 0.83859c0.50706 0.4583 1.2676 0.77033 2.1647 0.77033 1.2871 0 2.3012-0.63382 2.3012-1.7064 0-0.92635-0.57531-1.3554-1.5992-1.6479-0.92635-0.27303-1.0629-0.39004-1.0629-0.66307 0-0.23402 0.20477-0.39004 0.62407-0.39004 0.44855 0 0.8776 0.14627 1.2774 0.39979l0.56556-0.86784c-0.4778-0.39004-1.1506-0.63382-1.9015-0.63382z"/>
-     <path id="path859" d="m21.281 15.592c-1.5504 0-2.5353 1.1506-2.5353 2.7986 0 1.6382 0.97511 2.7108 2.5645 2.7108 0.71183 0 1.2676-0.23403 1.7454-0.61432l-0.67282-0.9556c-0.37054 0.23403-0.62407 0.35104-0.99461 0.35104-0.61432 0-1.0239-0.35104-1.0239-1.5017 0-1.1604 0.38029-1.6089 1.0434-1.6089 0.35104 0 0.65332 0.11701 0.98486 0.37054l0.66307-0.9166c-0.4973-0.4193-1.0531-0.63382-1.7747-0.63382z"/>
-    </g>
-    <g id="g1542" transform="matrix(2 0 0 2 -.41134 3.175)" fill="#676867" fill-rule="evenodd" stroke-width=".26458">
-     <path id="path943" d="m4.9596-1.0196c0.40797 2.8312 1.9272 4.5499 5.0239 4.691-2.918 1.1164-5.9253-1.5076-5.0239-4.691"/>
-     <path id="path945" d="m3.3407-0.52096c0.034969-0.00777 0.038854 0.015542 0.041445 0.041445 0.098431 1.8054 0.85998 3.1744 1.8689 4.1108 1.0089 0.93639 2.3636 1.6941 4.274 1.6604-3.5772 1.4247-7.337-1.9984-6.1856-5.8126"/>
-    </g>
-   </g>
-  </g>
-  <text id="text4811" transform="matrix(.26458 0 0 .26458 -45.077 -6.6039)" x="-248.88142" fill="#000000" font-family="'Fira Mono', 'Roboto Mono', monospace" font-size="12px" letter-spacing="0px" stroke-width="1px" word-spacing="0px" style="font-variant-caps:normal;font-variant-east-asian:normal;font-variant-ligatures:normal;font-variant-numeric:normal;line-height:15px;shape-inside:url(#rect4813);white-space:pre" xml:space="preserve"><tspan id="tspan2171" x="180" y="10.85">[MikroTik] ❌ Health warning: psu1-state
-</tspan><tspan id="tspan2173" x="180" y="25.85">
-</tspan><tspan id="tspan2175" x="180" y="40.85">The power supply unit 'psu1-state' on MikroTik failed!</tspan></text>
- </g>
-</svg>
diff --git a/doc/check-health.d/notification-05-psu-ok.avif b/doc/check-health.d/notification-05-psu-ok.avif
new file mode 100644
index 0000000..bcc5a39
Binary files /dev/null and b/doc/check-health.d/notification-05-psu-ok.avif differ
diff --git a/doc/check-health.d/notification-05-psu-ok.svg b/doc/check-health.d/notification-05-psu-ok.svg
deleted file mode 100644
index 0a3f05c..0000000
--- a/doc/check-health.d/notification-05-psu-ok.svg
+++ /dev/null
@@ -1,33 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<svg id="svg8" width="533.78" height="83.78" version="1.1" viewBox="0 0 141.23 22.167" xmlns="http://www.w3.org/2000/svg" xmlns:cc="http://creativecommons.org/ns#" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#">
- <metadata id="metadata5">
-  <rdf:RDF>
-   <cc:Work rdf:about="">
-    <dc:format>image/svg+xml</dc:format>
-    <dc:type rdf:resource="http://purl.org/dc/dcmitype/StillImage"/>
-   </cc:Work>
-  </rdf:RDF>
- </metadata>
- <g id="layer1" transform="translate(16.375 11.083)">
-  <rect id="rect857" x="-15.875" y="-10.583" width="140.23" height="21.167" rx="1.7529" fill="#e6e6e6" stroke="#6c5d53" stroke-linecap="round" stroke-linejoin="round"/>
-  <g id="g884" transform="matrix(.5 0 0 .5 -12.406 -7.1146)" stroke-width="2">
-   <path id="path899" d="m23.177 23.177c-2.9635 2.9635-17.991 2.9635-20.955 0-2.9635-2.9635-2.9635-17.991 0-20.955 2.9635-2.9635 17.991-2.9635 20.955 0 2.9635 2.9635 2.9635 17.991 0 20.955z" fill="#fff"/>
-   <g id="g871">
-    <g id="text837" stroke-width=".52916px" aria-label="#!rsc">
-     <path id="path851" d="m7.4832 16.646v-1.0239h-0.54606l0.16577-1.2774h-1.2774l-0.16577 1.2774h-0.97511l0.16577-1.2774h-1.2774l-0.16577 1.2774h-0.70208v1.0239h0.56556l-0.24378 1.8722h-0.68257v1.0239h0.54606l-0.18527 1.3944h1.2774l0.18527-1.3944h0.97511l-0.18527 1.3944h1.2774l0.18527-1.3944h0.70208v-1.0239h-0.56556l0.24378-1.8722zm-2.2037 1.8722h-0.97511l0.24378-1.8722h0.97511z"/>
-     <path id="path853" d="m9.6187 14.179h-1.6382l0.19502 4.271h1.2481zm-0.81909 5.1583c-0.48755 0-0.8776 0.39979-0.8776 0.8776 0 0.48755 0.39004 0.88735 0.8776 0.88735 0.4973 0 0.88735-0.39979 0.88735-0.88735 0-0.4778-0.39004-0.8776-0.88735-0.8776z"/>
-     <path id="path855" d="m13.373 15.612c-0.59482 0-1.1019 0.42905-1.3359 1.1506l-0.13652-1.0044h-1.3359v5.1778h1.5407v-2.6035c0.17552-0.77033 0.4388-1.2286 1.0726-1.2286 0.16577 0 0.30228 0.02925 0.46805 0.06826l0.24378-1.4919c-0.17552-0.04875-0.32178-0.06826-0.51681-0.06826z"/>
-     <path id="path857" d="m16.181 15.592c-1.3066 0-2.116 0.69233-2.116 1.5797 0 0.79959 0.50706 1.3261 1.5309 1.6187 0.9361 0.26328 1.0921 0.37054 1.0921 0.72158 0 0.31203-0.28278 0.48755-0.75083 0.48755-0.50706 0-0.98486-0.20477-1.3749-0.50706l-0.75083 0.83859c0.50706 0.4583 1.2676 0.77033 2.1647 0.77033 1.2871 0 2.3012-0.63382 2.3012-1.7064 0-0.92635-0.57531-1.3554-1.5992-1.6479-0.92635-0.27303-1.0629-0.39004-1.0629-0.66307 0-0.23402 0.20477-0.39004 0.62407-0.39004 0.44855 0 0.8776 0.14627 1.2774 0.39979l0.56556-0.86784c-0.4778-0.39004-1.1506-0.63382-1.9015-0.63382z"/>
-     <path id="path859" d="m21.281 15.592c-1.5504 0-2.5353 1.1506-2.5353 2.7986 0 1.6382 0.97511 2.7108 2.5645 2.7108 0.71183 0 1.2676-0.23403 1.7454-0.61432l-0.67282-0.9556c-0.37054 0.23403-0.62407 0.35104-0.99461 0.35104-0.61432 0-1.0239-0.35104-1.0239-1.5017 0-1.1604 0.38029-1.6089 1.0434-1.6089 0.35104 0 0.65332 0.11701 0.98486 0.37054l0.66307-0.9166c-0.4973-0.4193-1.0531-0.63382-1.7747-0.63382z"/>
-    </g>
-    <g id="g1542" transform="matrix(2 0 0 2 -.41134 3.175)" fill="#676867" fill-rule="evenodd" stroke-width=".26458">
-     <path id="path943" d="m4.9596-1.0196c0.40797 2.8312 1.9272 4.5499 5.0239 4.691-2.918 1.1164-5.9253-1.5076-5.0239-4.691"/>
-     <path id="path945" d="m3.3407-0.52096c0.034969-0.00777 0.038854 0.015542 0.041445 0.041445 0.098431 1.8054 0.85998 3.1744 1.8689 4.1108 1.0089 0.93639 2.3636 1.6941 4.274 1.6604-3.5772 1.4247-7.337-1.9984-6.1856-5.8126"/>
-    </g>
-   </g>
-  </g>
-  <text id="text4811" transform="matrix(.26458 0 0 .26458 -45.077 -6.6039)" x="-248.88142" fill="#000000" font-family="'Fira Mono', 'Roboto Mono', monospace" font-size="12px" letter-spacing="0px" stroke-width="1px" word-spacing="0px" style="font-variant-caps:normal;font-variant-east-asian:normal;font-variant-ligatures:normal;font-variant-numeric:normal;line-height:15px;shape-inside:url(#rect4813);white-space:pre" xml:space="preserve"><tspan id="tspan13739" x="180" y="10.85">[MikroTik] ✅ Health recovery: psu1-state
-</tspan><tspan id="tspan13741" x="180" y="25.85">
-</tspan><tspan id="tspan13743" x="180" y="40.85">The power supply unit 'psu1-state' on MikroTik recovered!</tspan></text>
- </g>
-</svg>
diff --git a/doc/check-health.md b/doc/check-health.md
index 9ee16bb..d84693a 100644
--- a/doc/check-health.md
+++ b/doc/check-health.md
@@ -27,17 +27,17 @@ hardware supports:
 
 #### Voltage
 
-![check-health notification voltage](check-health.d/notification-01-voltage.svg)
+![check-health notification voltage](check-health.d/notification-01-voltage.avif)
 
 #### Temperature
 
-![check-health notification](check-health.d/notification-02-temperature-high.svg)  
-![check-health notification](check-health.d/notification-03-temperature-ok.svg)
+![check-health notification](check-health.d/notification-02-temperature-high.avif)  
+![check-health notification](check-health.d/notification-03-temperature-ok.avif)
 
 #### PSU state
 
-![check-health notification](check-health.d/notification-04-psu-fail.svg)  
-![check-health notification](check-health.d/notification-05-psu-ok.svg)
+![check-health notification](check-health.d/notification-04-psu-fail.avif)  
+![check-health notification](check-health.d/notification-05-psu-ok.avif)
 
 Requirements and installation
 -----------------------------