Low-maintenance pH combination electrode with Pt 100, glass shaft, SILAMID® reference, 2 hole diaphragm, DuraLid reference system, sphere membrane, H glass, VP screw plug head, length 225 mm (8.86 in), 12 mm (0.47 in) Ø, 0…14 pH, 32…266 °F (0…130 °C), for installation into CHEMtrac 830 M 低维护pH组合电极，带Pt 100、玻璃轴、SILAMID®参比物、2孔隔膜、DuraLid参比系统、球形膜、H玻璃、VP螺旋塞头，长度225 mm（8.86 in）、12 mm（0.47 in）Ø、0…14 pH、32…266°F（0…130°C），用于安装到CHEMtrac 830 M中