We are offering digital ph meter. Sensor input gel filed, epoxy filled type ph probe. Display 3-½ digit, 7 segment 12.5mm height accuracy 1% of full scale or ± 0.1 ph power supply 180 - 240 v ac (5060 hz) ambient temp. Humidity 0-50°c, 35 to 85% rh resolution 0.1 ph dimensions 96(h) x 96(w) x 110mm(d) sensor break protection auto switch off on sensor break, '1' indication on 4th digit and rest blanked out