Free Professional CCTV Tester DT-T70/T71 — 4.0 Inch HD Combine Monitor for H.264/H.265, 4K & 1080P IP/Analog Cameras, Full-Feature Tester

A compact all-in-one tester for CCTV installers: the DT-T70/T71 features a 4.0-inch HD display and supports H.264 and H.265 codecs as well as 4K and 1080P IP and analog camera systems. Built-in S485 data monitor and playback let you check and review camera data on the spot. Network utilities include Ping IP, Set IP, Sniff and List subnet for quick network diagnostics. System settings allow you to configure automatic shutdown time, change the screen language and perform system upgrades. The unit accepts USB storage and runs on an operating system optimized for more stable operation. For cabling checks it provides a TDR function that measures cable length from 0~200m with 0.1m resolution, plus a Cable Quality Test that reports connection state and attenuation for the connected RJ45 cable.