Comeway Power Meter High Accuracy TL510 Optical Optical Power Detector Measuring Instrument , Quick Response Measurement, and Easy to Use Design

[Easy to Use] - Monitor battery power in real-time, receive low power warnings, and from the automatic shutdown function for convenience.
[Wide Measurement Range] - Enjoy an 80dB optical power range for absolute and relative power measurements, along with six calibration wavelengths for comprehensive testing.
[Accurate Measurement] - Achieve precise measurements with high accuracy and a backlit LCD display, featuring user self-calibration for reliable readings.
[Portable Design] - This optical fiber tester, powered by 3xAAA batteries (not included), is compact, long-lasting, and easy to carry for on-the-go use.
[Quick Response] - Getresults with fast tracking and real-time measurement of optical power when the output changes.

Spec:

Item Type: Optical Tester
Material: Plastic
Product Model: TL510
Measurement Range dBm: -70~+10 dBm (the actual best measurement range is -65 ~ 0dBm)
Wavelength Range (nm): 800-1650
Calibration Wavelength: 850nm, 1300nm, 1310nm, 1490nm, 1550nm, 1625nm
Detector: InGaAs
Accuracy: Resolution: Linearity: 0.1%, Non-linearity: 0.01dBm
Working Temperature: -10℃-+50℃
Storage Temperature: -20℃~+70℃
Relative Humidity: 90% (+ 30°C)
Connector: Removable for FC / PC SC / PC
Power Supply: 3xAAA batteries (delivered without batteries)
Working Time:> 120 hours (without backlight)

powe meter