The Milwaukee MA906BR/1 Amplified pH/mV/Temp replacement probe for Milwaukee MW105 pH/Temp and MW106 pH/mV/temp meters. The MA906BR/1 has a rugged body (Epoxy) designed to take hits, comes with a 1 meter (3') cable and a BNC connector (meter(s) sold separately).  The MA906BR/1 will read mV of pH.  OPR probes for MW105 or MW106 sold separately (MA921B/2). 

The probe connects quickly and tightly with a BNC connector. No worries of slipping off.