E-Lins is based on the M2M field (Machine to Machine,Man to Machine), developed full expansion of 3G & 2G mobile cellular device. E-Lins mobile data products are widely used in more than 50 countries and regions, and more than twenty industrial fields, such as power control, water schedule, traffic, oil field, weather forecast, environmental protection, street lamp control, post, bank, CCTV, security surveillance, and many other areas.