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                                 - Low maintance 
- Leak-free 
- No diffusion potentials 
- No contamination of your electrolyte by outflowing ions 
- Does not contain toxic heavy metals 
- Suitable for the full pH-range from -2 to 16 
- Suitable for temperatures from -30 °C to 200 °C (-20 °F to 390 °F) 
- Gold-platet socket contact (2 mm) 
- Replaceable hydrogen source with an operating time of up to 12 months (6 months recommended) 
- Applicable for long-term tests 
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