GDU-T2/GSM is 1-8 channel temperature data logger from Envic which is especially designed for temperature monitoring in freezers, refrigerators, cold stores for service, pharmaceuticals, medicine hospital etc. applications where perishable materials are stored. The data logger automates temperature monitoring. It will send recorded measuring information to desired e-mail address and alarm as SMS to any cell phone if any abnormal situation occurs. Commissioning of the device is easy. It has ready connected sensors (2-8 pieces). Just install sensors to the measuring positions. Configure e-mail address and cell phone number for alarms, connect power and the instrument is ready for operation. Also document service is available to make customers information handling easier.