Function: 1. FAST AND ACCURATE: Fiber Optic Power Meter requires no warm-up, plug-and-play, accurate measurement, relative power calculation, calibration function 2. SENSITIVE AND DURABLE: The optical multimeter has a sensitive chip and a rugged internal structure. Low battery consumption, supports 40 hours of continuous use 3. UNIVERSAL INTERFACE: The mini fiber power meter has 10 wavelengths and light sources, 850, 980, 1270, 1300, 1310, 1490, 1550, 1577, 1625, 1650nm and SC, ST, FC adapter, meet most of communication engineering maintenance 4. ENERGY SAVING: The RJ45 tester adopts InGaAs probe, realizes accurate measurement, 10 minutes automatic shutdown, saves energy 5. Anti-scratch ABS: The fiber tester uses excellent ABS material, has impact resistance, anti-scratch, environmentally friendly Specification: Item Type: Mini Fiber Power Meter Material: ABS Power measurement range: -50-and26dBm 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: 0.01 dBm Working Temperature: -10-and60℃ Storage temperature: -25 - and 70 ℃ Auto power off time: 10 min Last battery life: not less than 40 hours Package List: 1 x Optical Power Meter 1 x User Manual 1 x lifting rope Amplify and use directly.