Model: TL 537A.
Display Range: +10~70dbm @ 1550nm
Resolution (DB):0.01.
Calibration Wavelength: 850/1300/1310/1490/1625
Sensor Type: InGaas
Accuracy: 0 35dB + 1nW.
Working Wavelength: 800 - 1700 (NM):
Continuous Operating Time: Approx. 230 hours (Standby Time: Approx. 3, 500 hours).
Power Supply: 2 NS batteries
Working temperature: -10 ~ + 50c; <; 90% Rh.
Storage Temperature: -20~ + 70^ c; <; 90% Rh.
Size:120x33x30mm
Weight: Approx. 2.5 oz (70 g).
Standard Accessories: 2 NS batteries, packing box, user manual