Electro-optic level switches

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GEMS SENSORS & CONTROLS

Electro-optic level switch / for high temperatures / for liquids / compact - ELS-950 series

Process pressure : max 17.0 bar
Process temperature : -40 °C - 110 °C

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 (110°C). The Polysulfone housing ensures this sensor is compatible for use...

Electro-optic level switch / for high temperatures / for liquids / compact - ELS-950 series

Process pressure : max 17.0 bar
Process temperature : -40 °C - 110 °C

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 (110°C). The Polysulfone housing ensures this sensor is compatible for use...

Electro-optic level switch / cost-effective / flange-mounted / compact - ELS-1100FLG series

Process temperature : -17.8 °C - 80 °C

The easy solution for thin wall tanks 1/4" thick (6 mm): ELS-1100FLG Series Level Switch. No threads needed with these flanged units. Slip through a .75" (19 mm) hole and tighten the jam nut; a Viton® gasket forms a tight seal. Ideal for sheet metal, molded plastic tanks and medical applications where elimination of exposed...

Electro-optic level switch / cost-effective / flange-mounted / compact - ELS-1100FLG series

Process temperature : -17.8 °C - 80 °C

The easy solution for thin wall tanks 1/4" thick (6 mm): ELS-1100FLG Series Level Switch. No threads needed with these flanged units. Slip through a .75" (19 mm) hole and tighten the jam nut; a Viton® gasket forms a tight seal. Ideal for sheet metal, molded plastic tanks and medical applications where elimination of exposed...

Electro-optic level switch / cost-effective / compact - ELS-1100HT series

Process temperature : -40 °C - 100 °C

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...

Electro-optic level switch / cost-effective / compact - ELS-1100HT series

Process temperature : -40 °C - 100 °C

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...

Electro-optic level switch / chemical-resistant / ultra high-purity - ELS-1100TFE series

Process temperature : -17.8 °C - 80 °C

When high purity or resistance to chemical attack is vital, ELS-1100TFE sensors are the ultimate solution. They feature a...

Electro-optic level switch / chemical-resistant / ultra high-purity - ELS-1100TFE series

Process temperature : -17.8 °C - 80 °C

When high purity or resistance to chemical attack is vital, ELS-1100TFE sensors are the ultimate solution. They feature a...

Electro-optic level switch / brass / compact / for harsh environments - ELS-950M series

The ELS-950M Series represents Gems™ smallest electro-optic level sensor developed to monitor a broad range of media including OHV type fluids.

Our UL approved design features a rugged brass housing, a TPE over-molded electronics...

Electro-optic level switch / brass / compact / for harsh environments - ELS-950M series

The ELS-950M Series represents Gems™ smallest electro-optic level sensor developed to monitor a broad range of media including OHV type fluids.

Our UL approved design features a rugged brass housing, a TPE over-molded electronics insert, TPE insulated wires, and flourocarbon o-ring seals that create a watertight, environmentally resistant assembly, ideally suited for use in harsh environments.

The ELS-950M is excellent for industrial OEMs requiring a solid-state sensor for small space and high temperature environments.

Typical Applications

Coolant reservoir monitoring and warning
Medical diagnostic, sterilizer, washers and dialysis equipment
Low lubricant warning on machine tools, generator sets, on- or off-highway vehicles
Low level warning in hydraulic reservoirs
Plastic over flow bottles, plastic radiators
Leak detection for drip pans
WIKA Alexander Wiegand SE & Co. KG

Electro-optic level switch / for liquids / compact - -30 °C ... +100 °C, max. 25 bar, ± 0.5 mm | OLS-C01

Process pressure : max 25.0 bar
Process temperature : -30 °C - 100 °C

Machine tools
Hydraulics
Plant construction and machine building
Pump technology
For liquids,...

Electro-optic level switch / for liquids / compact - -30 °C ... +100 °C, max. 25 bar, ± 0.5 mm | OLS-C01

Process pressure : max 25.0 bar
Process temperature : -30 °C - 100 °C

Machine tools
Hydraulics
Plant construction and machine building
Pump technology
For liquids,...

Electro-optic level switch - -30 - 140 °C, max. 50 bar | OLS-C20

The LSO.02 is ideal for horizontal analysis of liquids. It is capable of horizontal supervision...

Electro-optic level switch - -30 - 140 °C, max. 50 bar | OLS-C20

The LSO.02 is ideal for horizontal analysis of liquids. It is capable of horizontal supervision...
DWYER

Electro-optic level switch / for liquids - OLS series

The Dwyer Optical Level Switch Series (OLS) is best suited for stable process control because it delivers cost efficient, reliable and quick response even with no moving...

Electro-optic level switch / for liquids - OLS series

The Dwyer Optical Level Switch Series (OLS) is best suited for stable process control because it delivers cost efficient, reliable and quick response even with no moving parts on it. These device uses bright red and green LED’s indicators to represent presence or absence of liquid for real time monitoring. The remarkable flexibility feature of these devices come from the optional compositions such as 316 stainless steel, polysulfone and PFA provided applications. Optional mounting can be connected in horizontally or vertically direction. The optical level switch has and LED embedded that emits infrared light. The light will be processed by prism.
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