by {0}Shanghai ZLAN Electronics Co. Ltd. 
Custom manufacturer
Main categories: Serial Device Server; Modbus Gateways; Serial To WiFi; 4G/5G DTUs; Remote IO Controllers
Ranked #7 Wireless & IoT Module and Products class _i18n_mod_start_`shopmodule.shopsign.rankgoldfactory_i18n_mod_end_
Full customization
Design-based customization