JW3211 optical power meter is a handheld optical power meter, newly released in 2007, which can be used for absolute optical power measurements as well as for relative loss measurements in optical fibers. A ? .0mm photosensitive area photodiode is used to significantly improve the stability and the reliability. It features ingenious appearance, a wide range of power measurement, high accuracy, an user self-calibration function and a reference power level storage.

Features
• Reference power level storage( Ref Setting)
• User self-calibration function
• Comfortable LCD display and backlight LCD display supports night operation.
• Power measurements in dBm or mw and insertion loss in dB
• Optional 10 minutes Auto-off function
• AA alkaline batteries can last more than 140 hours, AC adaptor also available
• Low battery power indication

Applications
• Maintenance in Telecom
• Maintenance CATV
• Test Lab of Optical Fibers
• Other Fiber Optic Measurements

Specifications

MODEL	JW3211A	JW3211C
Wavelength(nm)	800~1700nm
Detector  Type	InGaAs
Detector Size	Ø 1.0mm
Measurement  Range (dBm)	-70~+10	-50~+30
Uncertainty	±5%
Calibrated Wavelength(nm)	850,1300,1310,1490,1550,1625
Resolution(dB)	0.01
Optical Connector	FC(interchangeable SC,ST) / as well as 2.5mm universal
Power Supply	Alkaline Battery(3 AA 1.5V batteries); AC Adaptor(9V)
Battery Operating Time	140 h with 1.5V Battery(3pcs)
Operating Temperature(°C)	-10 ~ +60
Storage Temperature(°C)	-25 ~ +70
Relative Humidity	0 to 95% (non-condensing)
Dimension(mm)	190X100X50
Weight(g)	370