Phase Monitors
When proper three-phase voltage is applied to the Phase Monitor, the LED will illuminate. These units act as a diagnostic tool, as the LED provides a series of pulses to indicate the fault condition.

Voltage Monitors
When proper single-phase voltage is applied to the Voltage Monitor, the LED will illuminate. These units act as a diagnostic tool, as the LED provides a series of pulses to indicate the fault condition.

Duplex Alternators
Duplex Alternators are designed for automatic duplex control of motors and other types of loads.

Triplex/Quad Alternators 
Triplex and Quad Alternators are solid state units designed to equalize output load the run time.

Time Delay Relays
The 021 Time Delay Relay offers a delay on operate function. The timing range is user specified up to one hour.

Instrinsically Safe Controls
MPE offers Intrinsically Safe Relays, the Intrinsically Safe Duplex Controller, and the Intrinsically Safe Barrier for use with the Level Probe.

 Controllers
MPE offers a full line of simple-to-use, feature rich Controllers for applications using float switch control, 4-20 mA Analog Input control, and Level Probe control.

Level Measurement
The BS2000 is the best automatic dual compressor Bubbler System on the market. The Level Probes provide a very rugged and reliable means of level measurement, with probes containing 1, 3, or 10 electrodes with various spacing between electrodes. The Level Probe Relay provides relay contact output using the level probe as an input.

Special Controls
Loop Powered Current Transmitter, Battery Operated Alarm & Charger unit, 120V Flasher, and  24VDC, 100mA DC Power Supply.

Hardware
 8, 11, and 12 pin Sockets, Small and Large Level Probe Brackets, S Hook, and Panel Mounting Kits.