The Vibronic level switch
AA= Approval: Non-hazardous area / A2= Output: FEL42, 3-wire PNP 10-55VDC / A= Display Operation: W/o; switch / B= Housing; Material: Single compartment; Alu, coated / A= Electrical Connection: Gland M20, plastic, IP66/68 NEMA Type 4X/6P / A= Application: Process max 150oC/302oF, max 40bar / A= Surface Refinement: Standard Ra<3,2um/126uin / 3= Type Of Probe: Short tube version / BJ= Sensor Length; Material: Short tube version; 316L / I1= Process Connection, Sealing Surface: Thread ISO228, G / VCJ= Process Connection: 1inch, 316L / Z1= Marking: Tagging (TAG), see additional spec