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.
The rules apply any time you are operating a drone in the furtherance of a business even if there is no direct compensation. This set of rules is for people who fly drones for government entities (local, state and federal government agencies) regardless if they are employees or contractors.