Satron VVFe is used for 0 - 4 kPa...0 - 500 kPa ranges. The transmitter communicates in a 2 - wire system. VVFe pressure transmitter is suitable for liquid level measurements in ground, rock and ships' tanks, drill well and in open channels. VVFe can be used to measure contaminating liquids. Small diameter of only 22 mm, makes it an excellent choice for liquid level measurements in narrow places. The transmitter's sensor is piezoresistive. The transmitter communicates digitally using the HART® protocoll.