The digital multimeter, DMM, is one of the most common items of test equipment used in the electronics industry today. While there are many other items of test equipment that are available, the multimeter is able to provide excellent readings of the basic measurements of amps, volts and ohms.
Here are the basics of the rules, which will apply to drones weighing fewer than 55 pounds: pilots will have to pass a knowledge test (but not a practical test) to get a newly developed drone operator license and will have to be vetted by the TSA.
Drones and quadcopters that weigh more than .55 pounds and less than 55 pounds must be registered online. The paper registration process is reserved for certain types of drones. Specifically, any drone that weighs 55 pounds or more must be registered through the paper process.