Electrode IKA SY pH 325, Low maintenance pH combination electrode with glass shaft, 2-hole diaphragms, screw plug head, L: 325 mm, D: 12 mm, 0 - 14 pH, 0 - 130 °C, accompanied with cable to connect to Almemo measuring instrument, e.g., Almemo 2490, suitable for reactor vessels with volumes of 100 ml (SY 100 and SY 100 D), 250 ml (SY 250 and SY 250 D), 500 ml (SY 500 and SY 500 D) and 1000 ml (SY 1000 and SY 1000 D)