CWT5016 Support GPS/GSM/GPRS, with 4 Temperature sensor, 4 Ad inputs, 4 Digitial inputs, 4 Digital Outputs, GPS tracking CWT5016GPS has been designed as a cost effective, low power, self contained data logger. It combines 4 digital inputs, 4 drivable relay outputs, 4 analog inputs and 4 special temperature sensor inputs with embedded GPS and GSM/GPRS module to provide an all in one instrument for ...