Zhengzhou, where to sell [2M BERT]? What brand, how? The telephone Tel :0371-55676313 TL3000EVR Series BER tester is a full-featured, easy to operate handheld digital channel bit error performance testing and analytical instruments, the main function asynchronous RS232, synchronous RS232, synchronous V.35 synchronous TTL level, transparent / unframed E1 and E2 interface error test and analysis, custom interface rate, but also has the additional function of digital frequency meter, you can measure the frequency of the input digital signal with low power consumption, ultra-large-scale integration circuit design, character LCD, high efficiency power management, handheld instrument structure design features a full-featured, user-friendly, lightweight and beautiful, easy to carry, is the ideal measurement tool of modern communication engineers, especially convenient for travel and field work of engineering and technical personnel rechargeable lithium batteries carry the machine features:? interface type and rate of complete, fully functional?   stunned tick quality , Connaught delicate hit  Carchesium the?? small size, easy to carry, suitable for field testing requirements;? power and low-power design, lithium battery fully charged case to meet the test requirements of more than 4 hours;? with a variety of performance test results and analysis, reflect all aspects of the quality of the communication channel;? has 256 sets of historical data storage; test results automatically record the testers at any time to view;? Chinese character LCD display and Chinese operation menu to facilitate the testing of personnel to operate;? 1ppm accuracy measurement frequency and frequency offset of the received signal;? provide high-precision real-time clock function; ? online firmware update feature. --- TL3000EVR Series Specifications: Transparent / unframed E1 synchronous / asynchronous RS232 synchronous V.35 transparent / framing E2 TTL level output from a fixed-rate standard S to enhance type E M Zhengzhou Emi Instrument Co., Ltd. Contact: Gujingli Tel 0371 -55,676,313 Business QQ: 2417674438 Address: Zhengzhou City, the intersection of West Street, South Street (south of the main entrance of Tube City Committee meters) Website: www.hm5117.cn