What is the difference between a model 700 and a model 701 hour meter?
The model 700 hour meter will turn on its display and begin to accumulate time when power is applied to its V+ and V- pins. When power is removed the display will blank out. The model 701 hour meter will turn on its display when power is applied to its V+ and V- pins. However, it will not accumulate time until power is applied to it Input pin. In this manner, the model 701 hour meter can have its display on continuously for viewing at any time without accumulating time.