Safeguards appliances in workshops, factories, or homes by 0.01Hz precise frequency stability via digital readings This digital display multifunction power meter accurately monitors realtime energy, voltages, current, and power consumption, ideal for both household and industrial electrical systems Three selectable current measurement mode ( 50A / 100A / 199.9A) ensures compatibility with equipment while maintaining industrial accuracy Perfect for electricians, engineers, and DIYer enthusiasts seek reliabled power tool with customizable 0-199.9A current ranges Features 47x24mm color screen with 3 updates / second refreshing rate and ABS housing for durability in 10℃ to 60℃ environment, Manufacturer: Rxgiasup