Gems Sensor & Control ELS-1100HT Series Single-Point Level Switch

Last Updated: 21/03/2019

Gems Sensor & Control 153063

GEMS Logo - Celectric

RM522 inclusive tax

Usually ships in 6 to 8 weeks

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Actuation LevelN/A
Switch OperationNormally Open (Non-Reversible)
Min. LiquidN/A
Stem MaterialIspoPlast
Float MaterialN/A
Float DiameterN/A
Mounting Size3/8″ NPT Male
MountingVertical or Horizontal
Switch TypeTTL/CMOS Compatible
Input12 VDC
OutputSink 40 ma max, up to 30 VDC
Maximum Pressure (PSI)150
Minimum Temperature (°F)-40
Maximum Temperature (°F)230
Electrical Termination22 AWG 12″ Polymeric Leads
Wetted MaterialsIsoplast
ApprovalsUL Recognized


Slightly larger than the ELS-1100, the “HT” or High Temperature version is made from high performance Isoplast plastic. While maintaining broad chemical compatibility, these units also handle fluid temperature to 212°F (100°C). They feature 3/8″ NPT mountings and the shortest of any of our electro-optic switch bodies-HTS versions are a mere 1/2″ long!

ELS Series Level Switches are low cost, compact, optical, level sensors with built-in switching electronics. With no moving parts, these small units are ideal for a variety of point level sensing applications especially where dependability and economy are a must.

Level switches are suitable for high, low or intermediate level detection in practically any tank top, large or small. Installation is simple and quick through the tank top, bottom or side. Solid state-switching ensures dependability over long service life.

The sensor offers ±1 mm repeatability and broad liquid compatibility. They are not recommended for use in any liquid that crystallizes or leaves a solid residue.

Data Sheet: Download Catalog Page
Instruction Manual: Download Instruction Bulletin