General Purpose ELS-1100 Series Level Switch

These polysulfone level switch units are both compact and economical. They feature a variety of mountings, power requirements and electrical terminations to make it easy to find a perfect match for your application. The ELS Level Switch Series is 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. These level switch units 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 ±1mm repeatability and broad liquid compatibility. They are not recommended for use in any liquid that crystallizes or leaves a solid residue.

ELS-1100 FLG Flange Mounting for Installation Without Threaded Holes 

The easy solution for thin wall tanks (0.635cm thick): ELS-1100FLG Series Level Switch. No threads needed with these flanged units. Slip through a 2.9cm hole and tighten the jam nut; Viton gasket forms a tight seal. Ideal for sheet metal, molded plastic tanks and medical applications where elimination of exposed threads removes potential bacterial breeding grounds. 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 ±1mm repeatability and broad liquid compatibility. They are not recommended for use in any liquid that crystallizes or leaves a solid residue.

ELS-1100HT Series High Temperatures to 100°C (212°F)

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 100°C (212°F). 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 ±1mm repeatability and broad liquid compatibility. They are not recommended for use in any liquid that crystallizes or leaves a solid residue.

ELS-1100TFE Series Teflon For Ultra-Pure or Aggressive Fluids 

When high purity or resistance to chemical attack is vital, ELS-1100TFE sensors are the ultimate solution. They feature a pure Teflon body and prism construction. Even the Hypalon vapor barrier and Teflon coated lead wires give evidence to the care we've taken to make the perfect liquid level sensors for pharmaceuticals, semiconductor manufacturing, food and beverage, chemical processing, or anywhere purity or chemical resistance is the major criteria. 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 ±1mm repeatability and broad liquid compatibility. They are not recommended for use in any liquid that crystallizes or leaves a solid residue.

ELS-1150 Series Electro-Optic Level Switch, Alloy Body, 1/2 the Standard Size

The ELS-1150 electro-optic level switch maintains the top-performing environmental capabilities of their larger family members while featuring an overall size that is 50% smaller. At just 1.38" long, the nickel-plated carbon steel ELS-1150 represents the smallest electro-optic level sensor in its performance class, and by far the most economical. ELS-1150 switches utilize a strong, glass prism fused to a carbon steel housing to easily monitor vessels pressurized up to 2500 PSI (172.4 bar). Their compact package size makes them the ideal candidate for monitoring the small, pressurized vessels found in HVAC, refrigeration and hydraulic applications. They are most commonly used for low, high and intermediate level detection. A Stainless Steel version, the ELS-1150SS, is excellent for applications requiring corrosion resistance. Industry's only stainless steel electro-optic sensor offers greater compatibility and is ideal for acids, solvents, and dielectric water applications.

ELS-1200 Series Level Switch With Integral Electronics for Pressurized Vessels up to 172.4 bar (2500 PSI)

High pressure liquid processes can now be monitored effectively with very little intrusion into tanks or piping. ELS-1200 level switch units feature fused glass prisms fused to zinc/nickel plated, carbon steel housings. You’ll find them to be compact, reliable and durable solutions to liquid level monitoring of refrigerant, compressor oil, hydraulic system reservoirs and machine tools. Corrosion-Resistant ELS-1200CR - Designed for outdoor use, these corrosion resistant units are made to withstand the nastiest environments. They feature the same fused glass prism and solid-state electronics as the standard ELS-1200. A rugged body made of stainless steel and Hastelloy® delivers the ultimate corrosion protection. 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 ±1mm repeatability and broad liquid compatibility. They are not recommended for use in any liquid that crystallizes or leaves a solid residue.

ELS-1200RE Series Enable Switch Replacement without Downtime

These Electro-Optic switches feature a one piece removable electronics module with 1/2" NPT conduit connection and an internal O-ring seal to protect against external moisture intrusion. Simply unthread the 1/2" NPT conduit connection for easy replacement of the electronics module without the inconvenience of emptying or depressurizing tanks. ELS-1200RE switches feature glass prisms fused to zinc/nickel plated, carbon steel housings. Select from either 1/2" NPT mounting connections, or 3/4"-16 UNJF-3A straight thread connections with an external O-ring seal. They monitor high pressure liquid processes with very little intrusion into tanks or piping. ELS Series Level Switches are low cost, compact, optical, level sensors with built-in switching electronics. With no moving parts, these small units areideal 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 ±1mm repeatability and broad liquid compatibility. They are not recommended for use in any liquid that crystallizes or leaves a solid residue.

ELS-950 Series Level Switch Rugged Electro-optic Level Sensor 

Not only is the ELS-950 the smallest electro-optic liquid level sensor in our arsenal, but it also carries the highest operating temperature capability at 230°F. The Polysulfone housing ensures this sensor is compatible for use in a broad range of medias. The ELS-950's design features an over-molded electronics insert, TPE insulated wires, and fluorosilicone O-ring seals that create a water-tight, environmentally resistant assembly. The ELS-950 is an excellent value making it a perfect choice for industrial OEMs desiring an extremely small, 'no moving parts' sensor rated for high temperatures.

ELS-300 Series Switches With Customized Lengths to 38.1 Centimeters

Stretch out and take a dip with these configurable electro-optic switches. They provide the ability to detect liquid levels within 15 inches of the top or bottom on a tank. 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 ±1mm repeatability and broad liquid compatibility. They are not recommended for use in any liquid that crystallizes or leaves a solid residue.