Multimeter, voltage meter, oscilloscope, power supply, tester for coaxial cables, sound level meter, speedometer, distance meter, light meter, anemometer, insulation tester, humidometer, air pressure meter, altitude meter, satellite signal detector, Ethernet signal detector, thermometer, battery tester, car ignition system tester, motion detector, ultrasonic tester, capacitor tester, frequency meter, infrared tester, laser tester, alternative current phase tester, electrical power meter, sequ...