The status view

This is what a single site looks like at a glance. Every service the sensor watches gets a ring; green is healthy, red is down, and the number is the current round-trip time from the counter.

How to read it

• The rings — one per monitored service (internet, card pay, cameras, back office…). The label under each is what you named it; the number is live latency.
• The correlation line — when several things fail together it says so, and when only one does it isolates it (“CARD PAY down, INTERNET up — isolated service outage”), so you are not chasing the wrong thing.
• The RTT history — the last 60 samples for the selected service, so a slow creep is visible before it becomes an outage.
• The footer — average, jitter, loss, and the sensor’s own IP / gateway / uptime, for when you need the details.