9 instruments for measuring electricity, weight temperature, humidity, air flow, light and sound, namely, electrical instruments for measuring A/C or D/C amperes, capacitance, voltage, frequency and ohms, digital and analog ampere clamps, digital and analog electric multi-testers, circuit continuity testers, digital weight scales, digital and analog thermometers, digital psychrometers, digital temperature and humidity measuring instruments, digitalpanel meters for measuring temperature and humidity, digital anemometers, analog and digital light meters, analog and digital sound meters