Gems Sensor & Control LS-3 Series Single-Point Level Switch

Last Updated: 17/03/2019

Gems Sensor & Control 201540

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Part Number: 201540 Categories: , ,

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Actuation Level 7/16″
Switch Operation Normally Open (Reversible)
Min. Liquid 0.95
Stem Material Polypropylene
Float Material Polypropylene (Solid)
Float Diameter 3/4″
Mounting Size 1/8″ NPT Male
Mounting Vertical
Switch Type SPST (20 VA)
Input N/A
Output N/A
Maximum Pressure (PSI) 15
Minimum Temperature (°F) -40
Maximum Temperature (°F) 212
Electrical Termination 22 AWG, 24-16″ long PVC leads
Wetted Materials Polypropylene, Kynar, Ceramic Magnet
Approvals UL Recognized, CSA Listed, CE


The durable construction of these reed switch designs ensures long, trouble-free service. Because the effects of shock, wear and vibration are minimized, these hermetically sealed level switches provide precise repeatability with no more than 1% deviation. The level switch actuation points remain constant over the life of the unit.

Ideal for shallow tanks or restricted spaces, or for any low-cost, high volume use. LS-3 Series are available in FDA/NSF compliant materials upon request, consult Gems™ for details.

NEW LS-3 MICRO: Gems’ newest addition to the LS-3 series family is the LS-3 Micro. It is the smallest LS-3 series switch available. These units are ideal for potable water, medical devices and other compact appliances such as printers. Gems LS-3 Micro float enables use in lighter-than-water fluids. These switches are also made with FDA compliant material, which expands the scope in which these floats can be used.