Analytical Sensors & Instruments, Ltd. (ASI) 12800 Park One Drive , Sugar Land , Texas 77478 USA About Solutions products services Companies Analytical Sensors & Instruments, Ltd. ... Products ASI - Model 11 Series - Electrodes ASI - Model 11 Series - Electrodes From Electrodes 0 Share General purpose pH or ORP, Suitable for all applications, stable annular ceramic reference ensures reproducible measurements. Most popular related searches ORP electrode pH electrode Customer reviews No reviews were found for ASI - Model 11 Series - Electrodes. Be the first to review! Add your review Publish your review Great! review successfully added!