Two-Way Loss Test Sets perform bi-directional loss testing in two directions simultaneously on one fiber. This is a faster, easier and more accurate process than the "two step on two fiber" process used on many other instruments. These are today's easiest, fastest, most accurate, smallest and most integrated field instruments. 
 

Laser Source		Power Meter		General
• Wavelength (nm)	1310、1550	• Detector	InGaAs	• Battery Life	360  Hrs  (Power Meter Mode ) 190  Hrs  (Laser in Autotest Mode)
• Stability (dB)	0.04	• Calibration Wavelengt  （nm）	780, 820, 850, 980,1270, 1290, 1300, 1310, 1330, 1350, 1370, 1390, 1410, 1430, 1450, 1470, 1490, 1510, 1530, 1550, 1570, 1590, 1610,  1625, 1650	• Dimension	190  x  130  x  70  mm
• Output Power  (dB)	- 7			• Weight	500 gm
• Output Adjustment (dB)	6 (in 0.01 dB steps)			• Shipping Weight	1500 gm
• Connection Repeatability (dB)	0.1	• Range (dBm)	+5 ~ -70 (1270~1625nm)	• Temperature	-15 to 55 °C (Operating) / -25 to 70 °C (Storage)
• Tone Generator	270 Hz, 1, 2 KHz, ±2 %	• Resolution (dB)	0.01	• PC Interface	USB  Type B
• Spectral Width (nm)	3	• Total Uncertainty (dB)	0.3	• Power	2 Alkaline C cells External DC