Rochester Instruments ET-1219 Current Alarm Relay

Rochester Instruments ET-1219 Current Alarm Relay is a compact alarm module designed to monitor a 4–20 mA DC process current and actuate a relay when the current falls outside a preset range. The unit is powered from a 115 VAC supply and accepts a standard 4–20 mA signal, enabling straightforward integration with common instrumentation loops. The ET-1219 provides a relay output for signaling, controlling, or interlocking equipment when an alarm condition is detected, making it suitable for industrial process control, utility monitoring, and instrumentation panels where reliable current-loop monitoring is required. This device's core specifications center on 4–20 mA input and 115 VAC operation, delivering a simple, single-point alarm interface for system safety and process visibility.