Features SCRATCH RESISTANT ABS MATERIAL: Fiber tester use excellent ABS material, possess impact resistance, scratch resistance, environmentally friendly. SENSITIVE AND RUGGED: Optical multimeter has sensitive chip and rugged internal structure. Low battery consumption, support 40 hours of continuous work. FAST AND ACCURATE: Fiber optical power meter no need to warm up, plug and play, bring accurate measurement, relative power calculation, calibration function. ENERGY SAVING: RJ45 tester adopt for InGaAs probe, realize accurate measurement, 10 minutes automatic shutdown, save energy. UNIVERSAL INTERFACE: Mini optical fiber power meter has 10 wavelength and light source, 850, 980, 1270, 1300, 1310, 1490, 1550, 1577, 1625, 1650nm and SC, ST, FC adapter, overs most of the requirements of communication engineering maintenance. Specification: Item Type: Mini Optical Fiber Power Meter Material: ABS Power Supply: 2 x AAA battery required(not include) Power Measurement Range: -50~+26dBm Probe Type: For InGaAs Wavelength Range: 850-1650nm Standard Wavelength(nm): 850, 980, 1270, 1300, 1310, 1490, 1550, 1577, 1625, 1650 Display Resolution: Linear Display: 0.1%, Logarithmic Display: 0.01dbm Operating Temperature: -10~+60℃ Storage Temperature: -25~+70℃ Automatic Shutdown Time: 10min Battery Last Time: Not less than 40 hours Package List:1 x Optical Power Meter1 x User Manual1 x Lifting Rope Package List 1 x Optical Power Meter 1 x User Manual 1 x Lifting Rope