Level sensors for water-based media

Sensor Family	Insertion Lengths	Technology	Signal	Points to Consider
LR	100…2000 mm	Guided wave radar	• Transmitter • Switch • IO-Link	• Easy top-down mounting • Cut-to-length measuring points • Excellent replacement for mechanical floats
LK / LT	264…728 mm	Capacitive	• Transmitter • Switch • IO-Link	• Easy top-down mounting • Independent overflow protection • LT variants include temperature output
KQ10	228 mm stackable	Capacitive	• Switch • IO-Link	• Mount outside non-metallic tank using brackets or adhesive • Units may be stacked to cover larger tanks • At-a-glance level indication via LED bar graph
PS	0…1 bar	Hydrostatic pressure	Transmitter	• Simply drop in tank • 2-wire transmitter • Pressure compensation via internally vented cable
PN	Unlimited	Hydrostatic pressure	• Transmitter • Switch • IO-Link	• Mount at the tank bottom • Two-colour display
PG	Unlimited	Hydrostatic pressure	• Transmitter • Switch	• Mount at the tank bottom • Gauge / digital display
PA / PX	Unlimited	Hydrostatic pressure	Transmitter	• Mount at the tank bottom • Two-wire transmitter
UGT, UIT	Up to 8 m	Ultrasonic	• Transmitter • Switch • IO-Link	• Accurate level detection regardless of medium • Actual distance available via IO-Link
LW21	Unlimited	Radar	• Transmitter • Switch • IO-Link	• Non-contact measuring principle • Measurement directly or through non-metallic walls • Independent of pressure, temperature or viscosity