diff --git a/network/node-exporter-smartmon.sh b/network/node-exporter-smartmon.sh
new file mode 100755
index 0000000..a6915b0
--- /dev/null
+++ b/network/node-exporter-smartmon.sh
@@ -0,0 +1,17 @@
+#!/bin/bash
+
+OUT="/docker/monitoring/node_exporter/textfile_collector/smart_selftest.prom"
+
+> "$OUT"
+
+for dev in $(smartctl --scan-open | awk '{print $1}'); do
+    name=$(basename "$dev")
+    LAST=$(smartctl -l selftest "$dev" 2>/dev/null \
+        | grep "Completed" \
+        | head -1 \
+        | awk '{print $(NF-1)}')
+
+    echo $name: $LAST
+    # Skip devices without self-test history
+    echo "smart_last_selftest_poweron_hours{device=\"$name\"} $LAST" >> "$OUT"
+done