HP-250 Hydrogen Peroxide Electrochemical Sensor Features   250 micron tip diameter. Very fast response time. Highly selective against nitric oxide. Covered with a series of membranes for the maximum selectivity. Operates at low applied voltage for enhanced selectivity. Solid state structure. No electrolyte to fill or change. Combination sensor. No external reference electrode needed. Shielded from electrical and environmental noise. Very wide linear range. Detects minute changes of hydrogen peroxide.