Features With LED Light: The visual fault locator is equipped with LED light, with high brightness, which is convenient for operation in dark environment. Compact Size: The power meter and detector are ergonomic, the compact size makes it easy to put in a pocket, or clip to clothing for easy portability. Good Performance: Adopt 2.5mm universal interface design, suitable for a variety of interfaces, with accurate measurement, quick response, small error. Multiple Functions: Support user self calibration and self adjustment of values, flexible and accurate measurement, with a wide application range. Product Parameters: The optical power meter has 650nm red line, the maximum power is 10mW, with 5‑8KM fiber penetration, which has strong stability. Specification: Item Type: Optical Power Meter Model: T1102 KLT Material: ABS Maximum Power: 10mW Test Distance: 5-8KM Laser Type: LD Wavelength Range: 650nm Working Temperature: -20-60℃ Modulation Frequency: CW/2Hz Working Hours: 5H Battery: 2 x AAA 1.5V battery (battery not included) Item Type: Visual Fault Locator Model: T1101 KLT5 Material: ABS Probe Type: InGaAs Wavelength Range: 800-1700nm Power Measurement: Range: -70-6dBm Uncertainty: <0.2dB Display Resolution: 0.01dB Working Temperature: -10-60℃ Storage Temperature: -25-70℃ Power Working Time: 20 hours Battery: 2 x AAA 1.5V battery (battery not included) Package List: 1 x Optical Power Meter 1 x Visual Fault Locator Package List 1 x Optical Power Meter 1 x Visual Fault Locator