with Calibration Check

Range pH:                            -2.00 to 16.00

Range mV:                           ±699.9 mV; ±2000 mV

Range Temp:                       -20.0 to 120.0°C

Resolution pH:                    0.01

Resolution mV:                   0.1 (±699.9 mV); 1 (±2000 mV)

Resolution Temp:               0.1°C

PC Connection:                   RS232 opto-isolated serial port

Calibration Check:              status of electrode condition and

                                               response time, status of the buffer

                                              solutions during calibration.

HI-221 are supplied complete with refillable pH electrode

(glass-body, BNC & Pin with 1 m cable), stainless steel

temperature probe, electrode holder, pH 4 and pH 7 buffer

sachets, electrode refilling solution, 12 Vdc power adapter

and instructions.