Water Pressure (level) Sensors Comparison Matrix

Stevens offers an extensive line of electronic liquid level sensors suitable for almost all environmental conditions and environments. Pressure sensors preform liquid level measurement by having the sensor submerged at a fixed level under the water surface. The pressure sensor measures the equivalent hydrostatic pressure of the water above the senor diaphragm, using this to calculate the total liquid depth. This function of a pressure sensor can be compared to “weighing the water”. Pressure sensors are ideal for ground and surface water level applications.



    Accuracy Operating Temperatures Ranges Input Output
Signal 		Body Material Dimensions
L x D
Stevens SDX Pressure Transducer Stevens SDX 0.25% (FS) -40 to 85 C 0-10, 0-35, 0-50 ft 12 -35 VDC 4 – 20 mA EPDM Rubber housing 3.0 x 0.81 in.
Greenspan PS 2100 liquid level sensor Greenspan
PS 2100 		0.05% (FS) 0 to 50 C 0 – 655/ft 9 – 30 VDC RS 232 Stainless Steel 15 x 0.88 in.
Greenspan PS 7000 liquid level sensor Greenspan
PS 7000		 0.1% (FS) -5 to 60 C 0 – 655/ft 8 – 30 VDC 4 – 20 mA Stainless Steel 6.23 x 0.87 in.
Greenspan PS 3000 liquid level sensor Greenspan
PS 3000		 0.05% (FS) 0 to 50 C 0 – 655/ft 9– 30 VDC RS 232/SDI-12 Stainless Steel or Delrin 13.97 x 1.85 in.
Stevens SDT-II liquid level sensor Stevens SDT-II 0.25% (FS) 0 to 50 C 0 – 100/ft 12.5 – 35 VDC 4 – 20 mA PVC 8.0 x 1.27 in.