1. Multifuction Network Cable Tester + Multimeter + Optical Power Meter 4 in 1 2. Ethernet, telephone and coaxial video cable length measurement, up to 600 meters 3. Powerful network cable analysis function: open circuit, short circuit, crossover and crystal head crimping test 4. 6dBm to -70dBm optical power meter design, compatible with , SC, FC interfaces 5. Equipped with red laser emission function, the optical fiber transmission distance can reach 10KM, for visual positioning of breakpoints. 6. Scan(line finding ),is noise-free and anti-interference, quickly find the target line in complex lines, support RJ45 BNC Cable Name: Multifuction Network Cable Tester Display: 3.2 inche 240 x 320 color screen Power supply: 1500mAH(Host) / 800mAH(Receiver) Lithium Battery Size:Host 187 x 86 x 34mm / Receiver 197 x 47 x 36mm Network Cable Tester Cable Length:Network cable (600M), telephone line (400M), coaxial cable (400M) Measurable range: 1m~600m Length self-calibration: support,the length of the referencel line used for calibration must be 5 meters Digital Tracing: Digital mode (ET636) Cable Mapping: Normal/Open/Short/ QC Crimping: Support NCV: Support Receiver: Sensitivity adjustable Switch Flash: 10M/100M/1000M POE Test: Voltage/polarity Account: 100 records storage/unit price/amount Visual Fault Locator(VFL):10wm, about 10kM, ON 1Hz/2Hz/OFF Optical Meter Measurement range:-70.00~6.00 dBm Optical power display: mW/uW/nW/dBm/dB Interface: , SC, FC Standard wavelength: 850,980,1300,1310,1490,1550,1625nm Multimeter[only for ET636] Color: Red Material: ABS Package Contents: 1 * line finder 1 * red light 1 * charging cable 1 * storage box Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.