![Ag/AgCl Portable Reference Electrode](https://sdp.ir/wp-content/uploads/2016/05/DSC01621.jpg)
Reference electrode
A reference electrode is an electrode which has a stable and well-known electrode potential. The high stability of the electrode potential is usually reached by employing a redox system with constant (buffered or saturated) concentrations of each participants of the redox reaction
![](https://sdp.ir/wp-content/uploads/2016/06/DSC00138-575x344.jpg)
Cu/ CuSO4 Reference Electrode
Various types of Cu/CuSO4 half cells are available in SDP works including both of Stationary (Permanent) and Portable electrodes.
![](https://sdp.ir/wp-content/uploads/2016/06/DSC01621.jpg)
Ag/AgCl Portable Reference Electrode
GMC Silver – Silver Chloride reference electrodes for use in seawater and brackish water, river mouths, estuaries, sea water and high chloride waters.
![](https://sdp.ir/wp-content/uploads/2016/06/Zinc-Reference-Electrode.jpg)
Zinc Reference Electrode
Zn/ZnSO4 Reference electrodes are permanently installed in soil to facilitate the potential measurement of the protected structures.