The PHE-19 pH electrode uses a low-impedance glass membrane, especially suitable for low-temperature sample testing. The conical sensor tip is highly resistant to general impact, and has a faster response rate and better repeatability. Low-impedance glass membrane, specially designed for low-temperature sample testing. Conical sensor tip with fast response rate, high repeatability, and built for durability. The electrode uses a BNC connector, compatible with all labForce® pH meters.