With the help of a red light source, breaks or a bending radius that is too small can be determined. They can also be used for fiber localization.
Weight: 46 g
Battery: 2x AAA, 30+ hours of continuous use
Dimensions: 11.4 x 3.5 x 2.0 cm
Wavelength: 650 nm
Range: > 7 km single-mode, > 5 km multimode
Weight: 150 g
Battery: 2x AA, 80+ hours of continuous use
Dimensions: 22.0 x 3.5 x 3.0 cm
Wavelength: 650 nm
Range: > 7.5 km single-mode, > 5 km multimode