Detects optical power in single-mode and multimode fiber wavelengths (near infrared range 850 to 1625 nm)
No setup or interpretation needed light and sound indicate presence of optical signal
Non-contact detector lessens the risk of damage to fiber optics; suitable for ports and patch cords, SM, MM, UPC and APC connections
LightBeat flashes to indicate operation and battery status; powers off after five minutes to preserve battery (2xAAA, included)