The HI 4009 and HI 4109 are ion selective electrodes designed for the measurement of Cyanide ions in aqueous solutions. The HI 4009 is a solid state half-cell sensor that requires a separate reference. The HI 4109 is a combination ion selective electrode.
The Hanna Instruments HI 4009 and HI 4109 are ion selective electrodes designed for the measurement of cyanide ions in aqueous solutions. The HI 4009 is a solid state half-cell sensor that requires a separate reference electrode, while the HI 4109 is a combination ion selective electrode that incorporates a reference electrode. Both utilize a silver halide pellet to produce a potential change due to changes in the sample's ion activity.
The nominal insertion dimension is 120 mm.