Functions:Range (dBm): -70+3Resolution (dB): 0.1Calib. wavelength (nm): 1,330, 1,550Spectral range (nm): 750~1,700Detector type: InGaAsLight source wavelengh (nm): 1,310Stability: ±0.1dBAccuracy:

Function:1) Measuring range: A 30 - 130dB, C35 - 130dB2) Accuracy: ±1.5dB3) Frequency response: 31.5Hz - 8.5kHz4) AC/DC output5) Low battery indication6) Over range indication7) Time weighting se

Product Name: Sound Level MeterModel Number: HP814Place of Origin: ChinaFunction:1) Measuring range: A 30 - 130dB, C35 - 130dB2) Accuracy: ±1.5dB3) Frequency response: 31.5Hz - 8.5kHz4) AC/DC out

FunctionWind speed measure range: 0.3~30m/sWind Temperature Measure Range: -10℃~45℃℃/℉ Temperature Unit Switch: yesTemperature Measure Error: ±2℃Wind speed Measure E

FunctionWind speed measure range: 0.3~30m/sWind Temperature Measure Range: -10℃~45℃℃/℉ Temperature Unit Switch: yesTemperature Measure Error: ±2℃Wind speed Measure E

Function:AC/DC Voltage, AC/DC Current, Resistance, Capacitance, Frequency, Diode and Continuity test, Transistor hFE test.Display: 3 3/4 digit LCD with a max. reading of 3999AC/DC Current to 10AAuto-r

Function:AC/DC Voltage, AC/DC Current, Resistance, Capacitance, Frequency, Diode and Continuity test, Transistor hFE test.Display: 3 3/4 digit LCD with a max. reading of 3999AC/DC Current to 10AAuto-r

DC/AC Voltage, DC/AC Current, Resistance, Capacitance, Frequency and Duty cycle, Temperature, Diode/Continuity test, Tachometer, Dwell.ms-Pulse, Analog Frequency/Duty/Voltage Signal Outputfrequency:20

DC/AC Voltage, DC/AC Current, Resistance, Capacitance, Frequency and Duty cycle, Temperature, Diode/Continuity test, Tachometer, Dwell.ms-Pulse, Analog Frequency/Duty/Voltage Signal Outputfrequency:20