... 1.support wireless GPRS,GSM,RF modem; 2.support temperature display; 3.support secondary development; LS-T1 LED display ... ;Program files can be copied , supportting programs to save and load the file.Detailed development documentVC, VB, Delphi develop ... modeRS232,RS485Wireless communicationSupport RF/GPRS/GSMTotal pixel64KExtend interfaceTemperature sensor, test button, switchPlayerLED Player 3.2