Fiber Type: Single ModeConnector Type: SC//STModel Number: G710Power meter interface: 2. 5mmWavelength range: 800 to 1700nmCalibration wavelength: 850/980/1300/1310/1490/1550/1625nmAdaptor: 2. 5mmMeasuring range: -70-+10dBmBattery: rechargeable Lithum batterysize: 127 x 45 x. The product is very simple to starting up, with a one button opening function, which is very convenient to use. With LCD color display, vivid colors, giving you a better experience. Multiple protecting design: overcharge protecting, over current protecting, over voltage protecting, over power. This is an useful tool for you to test the optical power, it is very easy to carry, so you can take it with you to anywhere you want to use it, with LCD display screen, you can see the data more clearly, give you a better using experience. – Grandado G710 LCD Optical Power Meter Optical Fiber Tester Attenuation Detection Instrument 7 Testing Wavelengths -70~10dBm RangesOPM G710 G510 FC SC UPC APC Optical Power Meter -70~+10dB -50~26dB (With Built-In LED Lighting) FTTX Fiber Optical Cable Tester Optical Power Meter Parameter : SKU : Details: Shipping fee and delivery date to be negotiated. Chat with supplier now for more details. Calibration Function: The power measurement range is ‑70 to +10dbm, the measurement is fast and accurate, no need to wait for warm up.