Reliable overflow protection of liquids.

Overflow impossible!

• Overflow protection to the German Federal Water Act (WHG) section 19.
• Clearly visible switching status indication.
• Easy pushbutton adjustment in the application.
• Extended setting range for increased application reliability.
• Modular mounting concept for flexible use.

The new point level sensors of the LI21 series have been optimised for use in hydraulic oils and coolants. They are used to monitor the minimum level, leakage or overflow of tanks. The extended setting range increases the application reliability. The new operating concept enables setting and adjustment of the output function by pressing just one pushbutton. Deposits can be suppressed during operation without carrying out a complete new adjustment. The LI21 series is approved to the German Federal Water Act (WHG) section 19. Hydrous coolants, oils, water / media similar to water. Overflow protection to the German Federal Water Act (WHG) section 19.

M12 connector · output function NC · DC PNP, 4-pole · WHG § 19

	LI2141 - Binary level sensor, Probe length: 132 mm, Hydrous coolants, oils, water, media similar to water, gold-plated contacts, WHG § 19 approved, IP 65 / IP 67, Ambient temperature 0...65 °C, M12 connector
	LI2142 - Binary level sensor, Probe length: 273 mm, Hydrous coolants, oils, water, media similar to water, gold-plated contacts, WHG § 19 approved, IP 65 / IP 67, Ambient temperature 0...65 °C, M12 connector
	LI2143 - Binary level sensor, Probe length: 481 mm, Hydrous coolants, oils, water, media similar to water, gold-plated contacts, WHG § 19 approved, IP 65 / IP 67, Ambient temperature 0...65 °C, M12 connector