Fuse Latency Monitor shows the latency of your market data directly on the chart, in milliseconds, in four states: Optimal, Stable, Degraded and Critical. Set your own thresholds, choose one of four wording sets, and optionally show a min / avg / max line and play a sound when latency turns Critical. Market Replay, No data and Disconnected have their own colors. Display only, it does not place or modify orders.

Technical support from the site: fuseindicators.com

Instructions for use & setup notes:
1. Import via Tools, Import, NinjaScript Add-On.
2. Add FuseLatencyMonitor to any chart (Indicators window, FuseSuite folder).
3. Choose the corner, wording and the ms thresholds for each state. Optional sound alert when latency turns Critical.
It measures the delay of live market data against the clock of your computer (it is not a network ping), so keep the Windows clock synchronised. Latency is measured on live ticks only, not on history. Needs an active data connection.

Link to documentation or video walkthrough: https://fuseindicators.com
Original author & source: Original work by Fuse Indicators (own code, not a conversion).