Supplied in ergonomic housing with OLED display, SpeedMaster™ provides independent, real-time, and complete verification of entire speed monitoring system to ensure alarms and shutdowns work as expected. This diagnostic tool, with Pulse Pilot, operates in 2 modes: input mode provides machine's running speed while output mode allows testing of speed switch at set underspeed trip points. Design removes need to remove sensor from machine shaft or change any system connections for use.