Basic element is a robust and high overpressure capable capacitive ceramic sensor e.g. for low levels easily.  

Accuracy according to IEC 60770: standard: 0.35 % /option: 0.25 % 

Nominal pressure from 0 ... 40 cmH2O up to 0 ... 200 mH2O

Output signals 2-wire: 4 ... 20 mA 3-wire: 0 … 10 V, others on request

Special characteristics:

diameter 39.5 mm 

especially for sewage, viscous and pasty media

Optional versions:

IS-protection zone 0 

mounting with stainless steel pipe 

flange version 

diaphragm 99.9 % AI2O3 

different kinds of cables 

different kinds of elastomers

Preferred areas of use are:

Water - drinking water abstraction

Sewage-  waste water treatment water recycling 

Fuel / Oil - level monitoring in open tanks with low filling heights fuel storage tank farms / biogas plants