Item Type: Optical Power Meter <br>Material: Plastic <br>Product Model: TL550A <br>Measurement Range: -70~+10 dBm (the actual best measurement range is -65 ~ 0dBm) <br>Wavelength Range (nm): 800-1650 <br>Calibration Wavelength: 850nm, 1300nm, 1310nm, 1490nm, 1550nm, 1625nm <br>Detector: For InGaAs <br>Accuracy: <±3% (-10dBm, 22℃) <br>Resolution: Linearity: 0.1%, Non-linearity: 0.01dBm <br>Working Temperature: -10℃~+50℃ <br>Storage Temperature: -20℃~+70℃ <br>Relative Humidity: 90% (+ 30°C) <br>Connector: removable FC / PC SC / PC <br>Power Supply: 2 x AA battery (battery not included) <br>Working Time:> 120 hours (without backlight)<br>1、High measurement accuracy and display resolution. Provide absolute optical power measurement and relative power measurement. <br>2、When the output power changes, it can quickly display the tracking and real-time measurement of the optical power. <br>3、With wide measurement range, it can provide 80dBm optical power measurement range. <br>4、Automatic shutdown function. Monitor and display the battery power in real time, and display a warning notification when it is low. <br>5、Equipped with LCD display, it iseasy to read the value. It has the function of visual fault locator function.<p>1 x Optical Power Meter (Battery Not Included)</p><p>1 x Adapter Head</p><p>1 x Storage Bag</p><p>1 x Manual&nbsp;</p>