accuracy
amp
cable
check
circuit
clamp
compressor
condenser
conditioner
conditioning
control
current
electric
electrical
electrician
electricity
electronic
energy
engineer
engineering
equipment
hvac
industrial
industry
inspection
instrument
maintenance
measure
measurement
meter
multimeter
panel
power
probe
repair
resistance
system
technician
technology
test
tester
tool
vent
ventilation
volt
voltage
voltmeter
wire
worker