Fiber Optic Power Meter, Calibration Certificate Available Separately, Connector Type FC, LC, SC, Adapters Included FC, LC, SC, CAT Safety Rating CAT I, Alert Type Light, Fault Location Pulse Duration 1 min, Fiber Mode Measured Multi-Mode, Single-Mode, IP Rating IP40, Product Type Fiber Optic Power Meter, Testing Functions Optical Power Loss, Optical Power Measuring, Auto Power Off Yes, Battery Chemistry Alkaline, Battery Size AA, Display Screen Type LED, Dustproof Yes WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov -