These electrodes feature ultra thin insertion stems and miniature pH bulbs for measurement of the smallest of samples. Extra long stem lengths are available for access to long sample vessels such as NMR tubes.

Hg/Hg₂CI₂ is a very stable half-cell that is ideally suited for use with TRIS buffers and sample solutions containing proteins and other biological media. Also recommended where samples contain metal ions, sulfides, or other substances that will react with Ag/AgCl cells.

Intermediate length with 4 mm O.D. insertion stem. Sturdy and versatile probe for measuring small samples in cuvets and small lab glassware. 0–12 pH

Standard Length with 3 mm O.D. pH bulb and 3.5 mm O.D. insertion stem. 0–12 pH

An extra long, 3.5 mm O.D. insertion stem allows this calomel combination electrode to measure samples at the bottom of 7" long NMR tubes. 0–12 pH

Primarily there are four things we need to know in order to correctly fill your order.

1. Electrode Model Number — Each electrode has a ten character model number.

2. Cable Type — All lab electrodes are equipped with Type A, low noise, 3 mm, coaxial cable. Place the A after the electrode number.

3. Cable Length — The cable length is expressed in feet immediately after the cable type. Example: "-A03" stands for a three foot cable which is standard for all electrodes in this catalog. Follow model numbers by a"-DK" for a threaded electrode cap.

4. Connector — The cable length is followed by a two letter designation for the proper connector. All connectors are available. If you do not see what you need on this page, give us the make and model numbers of your pH meter and we will supply the proper connector.

Example: C13PIA-521-AO3SC