Specifications:

Model
Range
Digits
Display
Accuracy
Update Rate (Readings Per Second)
120 or 240Vac Power
Optional Range
Case Type
Weight (Metric)

FM-300TB
45.0-99.9Hz
3
0.6-inch LCD
±0.1Hz
2
Select
-
1/8 DIN/NEMA
6.6 oz. (187g)

Frequency Monitors FM Series line-powered frequency monitors are high quality, dependable panel meters designed to continuously monitor line power frequency. Crystal reference-based for high accuracy, these 1/8 DIN/NEMA case style meters come with LED or LCD displays. Options 0.8-inch LED Green, orange, or yellow LEDs Features Powered by monitored line Crystal time base 0.56-inch red LED display 0.6-inch LCD display Terminal block connection Low power consumption