cable & circuit testers
lovibond 194800 ph tester
ph tester br b features b ul li accuracy 0.05 ph unit li li item ph tester li li type sd 50 tester li li ph accuracy 0.05 ph unit li li ph range 0 14 ph units li li ph resolution 0.01 ph unit li li range 0 14 ph units li li resolution 0.01 ph unit li ul