Level Sensors & Switches

LS-350 Multi-Point Level Switch

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LS-350 Series Multi-Point Level Switch is custom configured to fit any container, with a wide range of mountings, fluid and electrical connectors, materials and lengths. The design combines a siphon tube and up to four liquid level sensors as a single component. This enables remote monitoring of a tank's fluid content while allowing access for container filling and draining.

  • Up to 4 Actuation Levels
  • Siphon or Fill Tube
  • Customized Mountings
  • Configurable
CE ROHS Gems Compliant CSA


  • Up to 4 Actuation Levels
  • Integral Siphon or Fill Tube
  • Customized Mountings
  • Custom Configurable
Minimum Temperature
Maximum Temperature
Minimum Pressure
0 psi
Maximum Pressure
15 psi
Minimum Specific Gravity
Maximum Specific Gravity
Minimum Indication
Maximum Indication

Reed Switch Protection

Format .pdf
Size 56 KB

LS-350 Product Guide

Format .pdf
Size 423 KB

Gems Sensors Catalog, LS-350

Format .pdf
Size 6 MB
  • General Industry
  • General Industry - Chemical Metering/Injection
  • General Industry - Cleaning Equipment
  • General Industry - Environmental
  • General Industry - Other
  • General Industry - Tanks - Specialty Chem
  • Medical - Analytical Instruments
  • Medical - BioPharm
  • Medical - Dermatology
  • Medical - Imaging
  • Medical - Immunochemistry
  • Medical - IVD
  • Medical - Lab
  • Medical - Laboratory & Testing
  • Medical - Life Sciences
  • Medical - Medical Lasers
  • Medical - Other
  • Medical - Pharmaceutical
  • Medical - Renal Care / Dialysis
  • Medical Equipment
Is there a minimum current flow requirement for a standard 20VA reed switch?

Yes, very low currents (< 5ma) can prevent “cleaning” of the contacts or not have enough energy to maintain low contact resistance. 5ma is likely a good minimum for our standard 20 VA switch. But you also want enough voltage. Approximately, 5V, 5ma is a good minimum. For low current switching we recommend a 10 VA reed switch which can better handle lower loads. (1ma for example).

What is the life expectancy of a reed switch?

A reed switch is extremely rugged and designed to operate reliably for many years, under ideal conditions, up to about 2 million cycles. To achieve maximum service life, reed switches benefit from protected electrical supply.