Meco Instruments Pvt. Ltd. Produces products relating to Electrical and Electronics Test and Measuring Instruments. Meco Instruments Pvt. Ltd. Offers Thermo Logger TL 81 available with -40 to 85°C [-40 To 185°F], 2048 Records [34 Hours to 1 Year], Real Time Clock Calender, Programmable Hi-Lo Limits, RS232 PC Interface, 24 Recorded Time - Stamp with Duration when Out of Limits, Recorded Long - Term Temperature Histogram, Magnet Backing and Built-In Hanger for Easy Mounting, Security Features to Prevent Tampering of Data, 1 to 255 minutes Sampling Time, Recorded Start Time - Stamp and Selectable Data Roll - Over Function