Grandway FHP12-B Power Meter ::: 26~-50dBm @1550nm

Imported sensor head 2.5mm universal interface (support FC/SC/ST connectors) Low power consumption, continuous work more than 100 hours Linear optical power and logarithmic power display Automatic measuring range adjust and power remains indication Relative value measurement Compact and portable design   Type FHP12-A FHP12-B Display Range 10~-70dBm @1550nm 26~-50dBm @1550nm Resolution 0.01dB Calibrated Wavelength 850/1300/1310/1490/1550/1625 Sensor Type InGaAs Accuracy 0.35dB±1nW 0.35dB±10nW Working Wavelength 800~1700nm Continuous Working Hours about 230 hours (standby time: about 3,500 hours) Power Source 2*AAA dry batteries Working Temp. -10 to  50℃; <90%RH Storage Temp. -20 to  70℃; <90%RH Dimension L120nmxW33nmxH30mm / about 70g Standard Accessories: 2*AAA batteries, carrying bag, user manual Optional Accessories: Male FC to female LC adapter for LC connector (model: HD078)