What's in the box:

Handheld Optical Power Meter -70~+3dBm Rechargeable Optical Power Tester Portable Digital Mini Light Power Meter with 7 Optional Optic Wavelength (Standard)

Features:
- Compact Body: Humanity Design, mini size, lighter & thinner, easy to carry.
- High-precision Sensor: High sensitivity & high precision & high response speed.
- High-definition LCD Screen: The clear LCD display with backlight enables you to read values clearly even in the dark environment.
- LED Lighting Function: Capable of playing a role as a flashlight for line checking and constructing in the dark.
- 900mAh Rechargeable Lithium Battery: Large capacity lithium battery, USB charging mode, longer lasting & more convenient power supply.
- Universal Interface Design: Suitable for 2.5mm universal adapter.
- Automatic Shutdown: No operation within 10 minutes, saving energy.
- 7 Optic Wavelengths for Selection: 850nm, 980nm, 1300nm, 1310nm, 1490nm, 1550nm and 1625nm.
- Additional Features: Wavelength data memory, frequency identification, self calibration, overcharge protection, over current protection, over voltage protection, over power protection, short circuit protection and temperature protection.
- Wide Application: Applied in optic fiber engineering, optic fiber sensor research, optic elements production, optic elements research, etc.

Specifications:
Material: ABS
Color: Black&Silver
Power Supply: 3.7V 900mAh lithium battery
Interface Type: Suitable for 2.5mm universal adapter
Charging Time: 3 hours
Duration: 18 hours
Detecting Area: 300m
Power Measuring Range: -70~+3dBm
Logarithmic Display Resolution: 0.01dBm
Linear Display Resolution: 0.1%
Wavelength Range: 800~1700nm
Accuracy: 5%(nm)
Wavelength Reference: 850nm, 980nm, 1300nm, 1310nm, 1490nm, 1550nm, 1625nm
Operating Temperature: -20~60?
Storage Temperature: -25~70?
Automatic Shutdown: No operation within 10 minutes
Item Size: Approx. 127*45*20mm / 5*1.77*0.79in
Item Weight: Approx. 87g / 3.07oz
Package Size: Approx. 150*62*40mm / 5.91*2.44*1.57in
Package Weight: Approx. 110g / 3.88oz

Note:
Please read the Users Manual before use.

Packing List:
1 * Optical Power Meter
1 * USB Charging Cable
1 * Users Manual(English)