Dual Voltage Programmable Digital Tachometer 
-R This has a 2nd Alarm output relay (5amp, 230 VAC form C)

Field programmable digital tachometer for shaft speeds as low as 1 RPM. Microprocessor based. Accuracy + 0.4%; 1/8 DIN housing, 1/2" four digit display Can calibrate in RPM or other engineering units. Operating range 1 to 30,000 input pulses per minute. Isolated output for upper/lower limits.

Panel Mount
Big, bright 1/2" LED display
Scalable Rate, % and Time units
Single, or dual encoder input with shared display
Multi-purpose tachometer, counter, totalizer or Zero speed Switch
Single (std) or two relay alarm output

Up to NEMA 4X rating (determined by cabinet)
Faceplate gasket kit gives a NEMA 4X rating when installed in similarly rated enclosure.