... , accurate, non-contact measurement of liquid levels. Ultrasonic non-contact technology offers no moving parts to wear, jam, corrode, or get ... , and non-contact level measurement of compatible liquids• Non-contact technology offers no moving parts to wear, jam, corrode, or get ... decreases 1.667 psi per 1°C increase. See Catalog page.Power Requirement:18 to 28 VDC (2 wire).Output Signal ...