Black Box Single-Mode and Multimode Test Kit

Accurately measure power loss in passive optical components.
Large, easy-to-read LCD display.
0.01-dBm resolution at all levels, so you can trust measurements below -45 dBm.
Stores up to 999 readings per wavelength.
At most levels, readings are instantaneous.
You can upload readings to a PC.
Operates on AC power, nickel-cadmium batteries, or alkaline batteries.
Visible laser light source emits a red light
Identify breaks at short distances.
Use the LED light source for long runs.
Both light sources work with single-mode and multimode cable.

What's included:
Power meter
Visible laser light source, 650-nm
Dual laser source, 1310-/1550-nm (TS525A)
LED light source, 850-/1350-nm
ST screw-on connector
Power adapter
9-V battery
(4) AA alkaline batteries
AC wall pack
DB9 to 4-pin DIN cable
Manual
Case