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Switches • Level Switches • Liquid Level Switches • Optical Level Switches

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  • Gems Sensors & Controls

    Gems Sensors & Controls offers ELS Series electro-optic level switches in two configurations: plastic and alloy. These 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. They offer ±1 mm repeatability and broad liquid compatibility. Applications include: medical laboratory, food/beverage systems, pharmaceuticals, petrochemicals, leak detection, machine tools, and hydraulic reservoirs.

  • Dwyer Instruments, Inc.

    Dwyer Instruments, Inc. offers low cost, compact Series OLS optical level switches. These switches come in three models (OLS-10, 11, and 12) and, feature LED indication displays. Product options include: 316 stainless steel, polysulfone, or PFA wetted materials. Switches have process temperature limits of up to 200°F, a repeatability of ±0.02", and a maximum pressure limit of 200 psig.

  • SICK, Inc.

    SICK, Inc. offers MHF15 compact optical level limit switches. These switches have process temperatures up to 55C, process pressures up to 16 bar, and a G 1/2 process connection. Switches are made with 1.4404 stainless steel and polysulfone apex materials, and have an IP 69K-rated housing. Applications include: level monitoring in aqueous/water-based liquids, dry running protection for pumps, and level control in cleaning system flushing units.

  • Comus International

    Comus International offers optical level switches. These switches have hermetically sealed electronics with a cable entry rated at IP68, an LED status indicator to confirm at a glance the condition of the switch, and a standard 2 metre cable with pre-stripped/tinned leads. Switch materials include: polycarbonate, polysulfone, and 304/316 grade stainless steel. Operational temperature ranges form -10°C~125°C.