Grandway OFI-3 Optical Fiber Identifier, Detects a variety of optical tones, 270Hz,1kHz and 2kHz

Features:  •Easy and convenient operation with a single keystroke •Detecting three signal frequencies 2kHz, 1kHz, 270Hz •Displaying signal intensity •Low battery reminder •Concise LED light •Two 1.5 V dry batteries (Mignon AA size) •Interchangeable adapter heads(clamps) for jacketed and coated fiber. Recognizable Wavelength Range 900 to 1650nm Recognizable Signal Type CW, 2kHz, 1kHz, 270Hz±5% Detector Type InGaAs 2pcs Clamp Type RB0.25mm for bare fiber, RB0.9mm for buffer, RB3.0mm for jacketed fibers Sensitivity @1310nm 11dB to-20dBm (Continuous Wave); 11dB to -10dBm ( Modulated Signal) @1550nm 11dB to-30dBm (Continuous Wave); 11dB to -18dBm ( Modulated Signal) LED Indicator signal traffic; signal frequency (2kHz/1kHz/270Hz); signal intensity (5 grades); low battery Operating Temperature -10 to  50℃ Storage Temperature -20 to  70℃ Power Supply 1.5V AA dry batteries*2pcs Dimension 202mmL*62mmW*36mmH Weight 270g Standard Accessories: 2*batteries, 3*adapter heads (RB0.25mm, RB0.9mm and RB3.0mm), carrying bag, user manual, test report Optional Accessories: sun shield, RB2.0mm adapter head