Quick test mode Precise results Ease of use Internal memory storage and external memory on usb device Compact size saves lab space. Automatic buffer calibration with buffer recognition Battery backup for up to 4 hours with low battery indication Auto power off after 10 minutes Print facility using usb storage device Stirrer interface to control rpm Simultaneous display of ph, millivolt, and temperature Atc temperature sensor 4-line lcd display In built 8.4 v cvcc adaptor cum charger which takes care of power fluctuations Built-in time and date function 280 mm (w)x210 mm (d)x90 mm (h) Approximate: 1 kg.