Products Level Switches

Switch-Tek™ LP50 Non-Intrusive Capacitance Level Switch



The general purpose non-intrusive capacitance level switch provides reliable liquid level detection of water based conductive liquids with non-coating and/or scaling characteristics with a 1A relay output. Media examples include hydrochloric, sulfuric acid and water. The liquid level sensor is bracket mounted on the exterior wall of non-metallic tanks and applied as a high level alarm or low level alarm.


Non-intrusive level detection through plastic or fiberglass walls

Installed with polyethylene, polypropylene or PVDF adhesive 3M mounting brackets

Rugged PSO enclosure rated NEMA 4X with conduit connector

60VA relay selectable NO or NC via power supply wiring polarity



Accuracy: 1mm in water
Repeatability: 0.5mm in water
Dielectric range: > 20 constants
Conduct. range: > 100
Supply voltage: 12-36 VDC
Consumption: 25 mA maximum
Contact type: (1) SPST relay
Contact rating: 60 VA, 1A maximum
Contact output: Selectable NO / NC
Process temp.: F: -40 to 176
C: -40 to 80
Enclosure rating: NEMA 4X (IP65)
Enclosure mat.: PSO
Cable jack. mat.: Polypropylene
Cable type: 4-conductor, shielded
#22 AWG
Cable length: 10' (3m)
Conduit entrance: 1/2" NPT
Tank mat. comp.: Non-metallic
Tank mounting: Bracket w/3M adhesive,
plastic thermal weld
Tank wall thick.: < 1" (25mm)
Bracket material: -6005: PE
-1005: PP
-5005: PVDF
Classification: General purpose
Compliance: CE


P/N Description Price
LP50-6005 Switch-Tek Non-Intrusive Capacitance Level Switch, PE Bracket $ 220.00
LP50-1005 Switch-Tek Non-Intrusive Capacitance Level Switch, PP Bracket $ 220.00
LP50-5005 Switch-Tek Non-Intrusive Capacitance Level Switch, PVDF Bracket $ 245.00

USD list prices are subject to change without notice. Contact your Local Distributor for net price quotations.

Contact Us

10500 Humbolt Street
Los Alamitos, CA 90720 U.S.A.
T: (562) 598-3015


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