... speed and easy to use3) The meter adopts intelligent chip design, which has automatic calibration, automatic temperature compensation, data storage, RS ... B1, B2 and B3 three calibration solutions6) Downloads reading to a computer using the RS-232 output port for ... to 50oC (automatic or manual)Communication Connector:RS-232 output, be equipped with WH-Link communication software.Calibration Solution:B1 ...