Refrigeration GPRS temperature humidity data logger

Refrigeration GPRS temperature humidity data logger WIFI Access View Temperature realtime data on APP Thermostat 3 relay outputs Data Logger Inside temperature and humidity sensor 4000pcs temperature records PC software program SMS Operation Preset 10 authorized phone numbers SMS alarm Control relay via SMS Check current temperature via SMS GPRS Communication TCP/IP connect 4 internet servers Http:post, CWT I/O protocol, Modbus TCP Realtime data logger