To be deductible, a business expense must be both ordinary and necessary. An ordinary expense is one that is common and accepted in your trade or business. A necessary expense is one that is helpful and appropriate for your trade or business. An expense does not have to be indispensable to be considered necessary. It is important to separate business expenses from the following expenses:
A duple meter metronome that is useful for 2/4, 2/8, 2/2 (cut time), and 6/8 when it has two beats per measure.
Product Description. << E-Mon D-Mon Submeters E-Mon D-Mon Class 2000 Three-Phase kWh and kWh/Demand Electric SubMeters. Key Features. Ideal for indoor and outdoor use Installation diagnostic indicator Monitors multiple loads with one meter for a cumulative reading UL Listed; Utility-grade accuracy Split-Core sensors included, Soild-Core available.