Welcome to our shop! Description: The upgraded optical power meter comes with a network test auxiliary machine that can be directly loaded into the host, making it more convenient and flexible to use. The new integrated network test assistant combines the auxiliary machine and the host, providing a more convenient solution compared to the old version. Despite its small size, it delivers powerful performance. New Features: 1. Added network cable test: You can now accurately test whether a single network cable transmits signals normally. To activate the RJ45 test mode, press and hold the UNIT button for 3 seconds; press the button again to turn off the RJ45 test mode. 2. LED night illumination: An LED light has been added to facilitate cable construction in dark conditions. 3. Wavelength memory function: The power meter now remembers the test wavelength set before shutdown. 4. Rubberized outer casing: The machine is protected from damage caused by accidental falls. 5. Backlight control: Use the LIGHT button to turn the screen backlight on or off as needed. 6. DIY self-calibration: By pressing +REF+UNIT simultaneously, you can enter the user mode screen and see the letter "CAL". Pressing the "REF" and "UNIT" buttons will restore the power meter to its factory state. Specifications: - Wavelength range: 800 to 1700 nm - Connector: FC/SC/ST - Detector type: InGaAs - Measuring range: Type A: (-70 to +3) - Uncertainty: ±5% - Standard wavelength (nm): 850 nm, 1300 nm, 1310 nm, 1490 nm, 1550 nm, 1625 nm - Display resolution: Linear display: 0.1%, Logarithmic display: 0.01 dBm - Working temperature (°C): -10 to +60 - Storage temperature (°C): -25 to +70 - Automatic shutdown time (min): 10 - Battery continuous working time (h): ≥ 48 - Meter size: Approx. 118*68*30mm/4.65*2.68*1.18in - Power: AAA battery * 2 (Not Included) Package List: - 1 * Optical power meter (No Battery) 100% Satisfaction: Our customers are our top priority. If you find any product problems after receiving the goods, such as damage and incorrect quantity of goods, please contact the seller immediately. We try our best to provide you with satisfactory after-sales service.