The AQ2150A Optical Multimeter is designed for use in the field, with small
size, light weight and ease of use. Swapping the LD/LED light source units
(9 types), sensor units (6 types) and return loss units (2 types) makes it
possible to use this handy instrument as an optical power meter, stabilized
light source, loss test set or return loss measurement system. With handheld
size and a weight of approx. 450 g, you can use it anywhere. And
because it does not require an external power supply, it really shines in the
field. Select the power source optimum for your needs at the time AC
adapter, AA cells or Ni-Cd battery pack (option).