Company Profile

Gems Sensors & Controls

Gems Sensors & Controls (GSC) is a manufacturing and distribution company that offers level sensors, flow sensors, pressure sensors, and miniature solenoid valves.  GSC's level sensor product offerings include: single point, multi-point, continuous level transmitters, visual level indicators, warrick conductivity sensors, and qwik ship level sensors.  GSC's flow sensing product offerings include: flow switches, electronic flow sensors, and qwik ship flow sensors.  In addition to offering pressure switches, GSC offers pressure transducers and qwik ship pressure sensors.  GSC's solenoid valves come in general purpose, cryogenic, and isolation configurations.  GSC's product market and applications include: water/wastewater processing, boiler control, marine/shipboard service, semiconductor manufacturing, etc.

For: Gems Sensors & Controls

Company Info

P: 800-378-1600
F: 860-747-4244

Gems Sensors & Controls Entries

  • ►  Sensors • Transducers 

    For: Entry

    Used to convert one type of energy to another. Can be used as sensors, actuators or a combination of the two.

    Gem Sensors & Controls manufactures three types of pressure transducers: general purpose/OEM, high accuracy, and specialty. The majority of general purpose/OEM transducers vacuum to 6,000 psi, while the high accuracy transducers feature 10 to 10,000 psi, 15 to 10,000 psi, or 7.5 to 6,000 psi. The specialty pressure transducers include wet differential, absolute, very low differential, barometric, 3A sanitary, and digital output types.

  • ►  Sensors • Transducers • Pressure Transducers 

    For: Entry

    Pressure Transducers

    Gem Sensors & Controls supplies pressure transducers including general purpose/OEM, high accuracy, and specialty types. The general purpose pressure transducers vacuum to 6000 psi, while the high accuracy transducers vacuum up to 10,000 psi. The specialty types include wet differential pressure transducers, absolute transducers, very low differential pressure transducers, barometric pressure transducers, sanitary pressure transducers, and digital output pressure transducers.

  • ►  Sensors • Liquid Level Sensors 

    For: Entry

    Used to measure a fluid inside a container or a fluid in its natural form

    Gems Sensors & Controls manufactures the ELS Series level switch sensors featuring small sized designed, built-in solid state electronics, no moving parts and simple unit installation. These sensors are ideal for medical laboratory, food and beverage systems, pharmaceutical, hydraulic reservoirs, machine tools and petrochemical applications and offer water level sensors offer ±1mm repeatability and broad liquid compatibility.

  • ►  Valves • Solenoid Valves • Pneumatic Solenoid Valves 

    For: Entry

    Pneumatic Solenoid Valves

    Gems Sensors & Control manufactures three types of pneumatic solenoid valve types including: subminiature, high flow, and low power subminiature. Each pneumatic valve is available with a 2-port or 3-port configuration. The subminiature valves are designed for air and dry gas applications, with 0.65 watt or 2 watt units available. The high flow pneumatic valves are direct acting, while the low power subminiature valves feature operational capabilities of more than 200 million cycles.

  • ►  Switches • Flow Switches 

    For: Entry

    Flow switches, also called vane switches are mechanical switches that can be switched on or off in response to flow of fluid or air.

    Gems Sensors and Controls manufactures a line of flow switches for use with both liquids and gases that feature corrosion-resistant materials, stainless steel, Ryton, and other options for material construction. Special flow switches are also available for viscosity compensation and high pressure environments.

  • ►  Switches • Pressure Switches 

    For: Entry

    A pressure switch is used to make electrical contact when a certain set pressure has been reached on the switch's input.

    Gems Sensors & Control designs and manufactures subminiature pressure switches and miniature pressure switches. The subminiature switches feature a pressure range of 0.75 to 6000 psi, and proof pressures up to 7500 psi. The miniature pressure switches feature proof pressures of 350 psi, 6000 psi, 3000 psi, or 4500 psi. The switches' pressure range varies from 3.5 to 1750 psi. The company's pressure switches are used for the filtering process of coolants in the machine tool industry. They are also used in transmissions of off-highway vehicles and as redundant systems with existing monitors.

  • ►  Valves • Pneumatic Valves 

    For: Entry

    Pneumatic valves are used in a variety of applications including high speed combustion engines including high performance race engines.

    Gems Sensors & Controls manufactures several types of pneumatic valves. The E and EH Series sub-miniature 2- and 3-way solenoid valves offer a maximum operating pressure of 175 psi, while the G and GH Series sub-miniature valves allow up to 250 psi; both offer a Cv range of 0.018-0.07. The A Series valve provides high adaptability, allows pressure up to 1000 psi, and Cv of 0.019-0.3; other series include the B Series (MOPD 400 psi, Cv 0.018-0.43), the C Series (400 psi, Cv 0.019-0.42), the D Series (900 psi, Cv 0.045-0.88), and the M Series (100 psi, Cv 0.018-0.07).

  • ►  Factory Automation • Instrumentation • Level Switches 

    For: Entry

    Level Switches

    Gems Sensors & Controls manufactures level switch products including electro-optic liquid level switches, float type level switches, and proximity and pressure switches. The company's switches are for use in a variety of fluids.

  • ►  Factory Automation • Instrumentation • Level Measurement 

    For: Entry

    Level Measurement

    Gems Sensors & Controls designs and develops liquid, flow, and pressure level sensors including ultrasonic level sensors, float type level switches, thin film pressure transmitters, Piezo-Resonant liquid level sensors, and more.

  • ►  Factory Automation • Instrumentation • Pressure Switches 

    For: Entry

    Pressure Switches

    Gems Sensors & Controls has several types of pressure switches including gauge type, vacuum type, and the specialty solid state switch from 9 to 6000PSI and 0 to 400 bar with no moving parts and is for use in mobile, off highway, and demanding applications.

  • ►  Sensors • Flow Sensors 

    For: Entry

    Used to detect the rate of fluid flow. Flow sensors are used in flow meters and loggers to measure the flow of fluids.

    Gems Sensors & Controls offers the new RF-2500 Series. With flow ranges from 0.1 to 60 GPM, they offer bright, visual indication with choice of pulsed DC output or adjustable 1 amp switched output. Two basic styles are available. The first style includes different paddle wheel sensors to meet different needs; for example, the RFA provides accurate flow rate indication with visual confirmation, while the RFI does much the same, but with a removable lens for quick cleanout. Second, turbine-style TurboFlow sensors come in three varieties: the economical FT-110 with accuracy +/-3% of reading, low flow rate FT-210, and NSF-approved FT-330, which also provides +/-2% accuracy of reading and +/-0.5% repeatability.

  • ►  Sensors • Ultrasonic Sensors 

    For: Entry

    Used to generate high frequency sound waves to calculate the time interval between sending and receiving the signal to determine distance to an object.

    Gems ULS Series of ultrasonic sensors are designed for sensing both viscous and light liquids, such as acid, fron, paint, and lacquer. With welded, sealless stainless steel probes, they can withstand high temperatures and pressures without risk of leaking. The sensors are housed in cast aluminum and are NEMA 4/NEMA7 explosion-proof and water tight. Single-point and mult-point level sensors include the company's smallest model, the ULS1, for pressures up to 250 psig, as well as the ULS10 and ULS100 explosion-proof models, and space-saving ULS11 model, all with lengths to 99".

  • ►  Switches • Level Switches • Liquid Level Switches 

    For: Entry

    Liquid level switches are operated by the presence of a liquid. When the volume of the liquid reaches a certain point, the switch is activated.

    Gems Sensors & Controls manufactures compact, optical water level switches that offer plus or minus 1mm repeatability. Features include: solid-state electronics, no moving parts, and one-unit installation. The company's level switches are used for medical laboratory, food and beverage system, pharmaceutical, petrochemical, leak detection, hydraulic reservoir, and machine tool applications.

  • ►  Switches • Level Switches • Liquid Level Switches • Float Switches 

    For: Entry

    Gems Sensors & Controls designs and manufactures small and large-sized float level switches constructed of engineered plastics or alloys. The larger size float switches are for aggressive or ultra pure liquids, corrosive liquids, or water and oils.

  • ►  Switches • Pressure Switches • Low Pressure Switches 

    For: Entry

    Gems Sensors & Controls is a manufacturer of a wide array of general purpose pressure switches including low pressure switches with adjustable configuration and 1,000,000 cycle life span.

  • ►  Valves • Cryogenic Valves 

    For: Entry

    Used to process, store and transport cryogenic fluids and gasses including nitrogen, argon and liquid natural gas.

    Gems Sensors & Controls manufactures two series of 2-way miniature, cryogenic solenoid valves that feature MOPD of 900 psi or 1000 psi, a CV range of 0.045 to 0.440 or 0.040 to 0.770, and 9 watts or 15 watts. The valves are used in environmental chamber, food processing, laser surgical equipment, and semiconductor manufacturing applications.

  • ►  Valves • Solenoid Valves 

    For: Entry

    Often valves are classified according to how they are actuated, which is the case for solenoid valve

    Gems Sensors & Controls provides solenoid valves with 2 way, 3 way normally closed, 3 way normally open, 3 way multipurpose and 3 way directional control configurations. Selection of solenoid valves includes A series, B series, D series, Chem-S, BS series, M series, EH series, GH series, B Cryo series and D Cryo series. Body materials include 303 stainless steel, Isoplast, polypropylene, brass, nickel plated brass and 430F stainless steel. Fluid connections includes 1/8" NPT, 1/4" NPT, and 1/8" barb fittings. Seal and O-ring materials include Viton, Rulon/Viton and Rulon/Variseal.

  • ►  Valves • Solenoid Valves • Miniature Solenoid Valves 

    For: Entry

    Miniature Solenoid Valves

    Gems designs and manufactures miniature solenoid valves that are utilized within the medical, biotech, automotive, and industrial equipment industries. The miniature valves are available in 2-way, 3-way normally closed, 3-way normally open, 3-way multipurpose, and 3-way directional control configurations.

  • ►  Valves • Solenoid Valves • High Pressure Solenoid Valves 

    For: Entry

    High Pressure Solenoid Valves

    Gems designs, engineers and manufactures all types of solenoid valves. Whether vacuum or high pressure, pneumatic or liquid, cryogenic or high temperature, Gems can build it to your requirements.

  • ►  Valves • Pressure Valves 

    For: Entry

    Variations of a valve, pressure regulators or pressure reducing valves decrease pressure.

    GEMS offers Predyne pneumatic solenoid and miniature solenoid valves for high-pressure applications. Product line includes cryogenic valves, isolation valves, and manifolds. These valves are available in the following configurations: two-way, three-way/normally closed, three-way/normally open, three-way/multipurpose, or three-way/directional control.

  • ►  Switches • Pressure Switches • Vacuum Pressure Switches 

    For: Entry

    Gem Sensors & Controls designs and manufactures two vacuum pressure switch models: one that is factory fixed with adjustable setpoints and one small size model for demanding applications. The switches feature maximum pressure setting ranges of 1.5" to 15 Hg, or 5" to 28 Hg.

  • ►  Switches • OEM Switches 

    For: Entry

    These are switches that are manufactured and sold in bulk, to the Original Equipment Manufacturer, often at a low cost.

    Gems Sensors & Controls distributes OEM pressure switches for hydraulic applications including forklifts, scissor lifts, and off road equipment. The switches are available with pressures from 15 to 3000 psi.

  • ►  Sensors • Flow Sensors • Airflow Sensors 

    For: Entry

    An airflow sensor measures the actual speed of the air flowing through a tube in a defined time segment.

    Gems Sensors & Controls offers three series' of piston type alloy airflow switches. The FS-925 ensures proper airflow in water and waste systems. The FS-926 features a low-flow piston that allows the detection down to 50 cc/min. The FS-10798 Series airflow switches are externally adjustable. They offer an infinite number of flow settings at pressures up to 1000 psig (69 bar), with low pressure drop and precise repeatability.

  • ►  Switches • Pneumatic Switches 

    For: Entry

    Switches for pneumatic applications come in several types, including vacuum switches and pressure swtiches.

    Gems Sensors & Controls manufactures general purpose pressure switches for low temperature pneumatic applications and pneumatic/low pressure hydraulic applications. Each of the switches are adjustable or factory set, and feature 5 to 300 psi.

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

    For: Entry

    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.

  • ►  Switches • Level Switches 

    For: Entry

    Electro-mechanical device used to sense the level of media in a container, opening or closing a digital switch to indicate status change.

    Gems Sensors & Controls offers single and multi-point level switches. Available configurations include: float level, exosense piezo-resonant, ultrasonic level, capacative level, electro-optic level, and multi-point float. LS-800-5 Series single-point level switches come with 3/4" brass or stainless steel NPT ports, they feature mounts outside the tank, and are ideal for small to large tank applications. LS-350 Series multi-point level switches are custom configurable, they have integral siphon/fill tubes, and can get up to 4 actuation levels.

  • ►  Sensors • Ultrasonic Sensors • Ultrasonic Level Sensors 

    For: Entry

    Gems Sensors & Controls offers single and multi-point ultrasonic level sensors. Single point ultrasonic level sensors monitor the toughest applications, they can handle pressures to 1000 PSI, and come in side, top, and bottom mounting configurations. They are unaffected by turbulence, particulate, vapors, and foam. Multi-point ultrasonic level sensors have a range of up to 49", a mounting measuring at 1" NPT, and a 2" dead band/beam width. Applications include: slurries, acids, inks, paints, beverage, chemical feed, control automation, waste water, water, etc.

  • ►  Sensors • Flow Sensors • Paddlewheel Flow Sensors 

    For: Entry

    Gems Sensors & Controls offers paddlewheel RotorFlow flow sensors. Sensors are available in compact/inline stainless steel, brass, and plastic housings. Sensors have flows ranging from 0.1 to 60.0 GPM, an operating range from 4.5 to 24 VDC, and a continuous analog output range from 0 to 10 VDC. Sensors feature bright, visual indications with a choice of adjustable 1 amp switched or pulsed DC outputs.

  • ►  Switches • Flow Switches • Paddle Flow Switches 

    For: Entry

    Gems Sensors & Controls offers paddle type flow switches for a variety of applications, including: valves, pumps, regulators, boilers, chillers, engines, turbines, heat exchangers, and compressors. Switches are engineered for positive liquid flow detection at pressures up to 2000 PSIG, they have a minimum in-line restriction, a patented cam design, etc. Switches are seal-less, bellow-less, and do not require mechanical linkages.

  • ►  Switches • Pressure Switches • Solid State Pressure Switches 

    For: Entry

    Gems Sensors & Controls is a supplier of solid state pressure switches featuring operation from 0 to 2000 PSI, high resistance to shock and vibration as well as no moving parts and is specifically designed for applications where cycles exceed 50 cycles/minute and broad frequency response is needed.

  • ►  Sensors • Flow Sensors • Liquid Flow Sensors 

    For: Entry

    Gems Sensors & Controls offers TurboFlow turbine and RotorFlow flow sensors. TurboFlow turbine flow sensors have flow rates ranging from 0.1 to 8 GPM, and ±2-3% accuracy readings. RotorFlow sensors feature flow ranges from 0.1 to 60 GPM, compact inline housings, and bright visual indications. These sensors are available in high performance stainless steel, brass, and plastic housings.

  • ►  Switches • Flow Switches • Adjustable Flow Switches 

    For: Entry

    Gems Sensors & Controls offers FS-400 Series adjustable flow switches. These switches have flow rate settings ranging from 0.75 to 14.0 GPM, 3/4" port sizes, a bronze material construction, and a 1% repeatability. They have applications for process systems, electronics, machinery, bearings, and gears.

  • ►  Switches • Level Switches • Liquid Level Switches • Ultrasonic Liquid Level Switches 

    For: Entry

    Gems Sensors & Controls offers single and multi-point liquid level switches. Gems ULS Series ultrasonic switches can handle pressures to 1000 PSI, lengths to 121", and they can be top, side, or bottom mounted. Model UCL-510 multi-point level sensors feature 2" dead bands, ranges up to 49", 1" NPT mounting options, and no moving parts. These sensors have outputs ranging from 4 to 20 mA, 4 relays, and the following corrosive/dirty applications: slurries, paints, inks, acids, beverage, food, chemical feed, control automation, waste water, water, etc.

  • ►  Switches • Level Switches • Liquid Level Switches • Single Point Liquid Level Switches 

    For: Entry

    Gems Sensors & Controls offers small and large size single point level switches. LS-1700TFE Series single-point level switches are constructed from corrosion resistant PTFE materials, and they are an ideal medium-sized solution for liquid level sensing applications. LS-800-5 single-point level switches feature 3/4" stainless steel/brass NPT ports, mounts on the outside of the tank, and applications for small or large tanks.

  • ►  Switches • Level Switches • Liquid Level Switches • Multi Point Liquid Level Switches 

    For: Entry

    Gems Sensors & Controls offers small and large size multi-point liquid level switches. LS-300TFE Series small-size multi-point level switches are corrosion resistant, they have a low particle generation/one piece molded design, lengths up to 24", and 1-4 actuation levels in a single unit. They have applications for cabinet link sensing, wafer cleaning, etching systems, pure chemical delivery systems, and semiconductor process equipment.

  • ►  Switches • Flow Switches • Fixed Set Point Flow Switches 

    For: Entry

    Gems Sensors offer a FS-380P series flow switch with a low-pressure drop design, for systems with a 0.25-2.0 GPM flow rating. The housing is composed of polypropylene, and features a 3/8" NPT male and a 1/4" quick disconnect male setting.  The F380P is designed for multiple industries including HVAC/coolant systems, dispensing equipment, water purification, beverage dispensing and distillery systems.

  • ►  Switches • Flow Switches • Piston Flow Switches 

    For: Entry

    Gems Sensors have piston flow switches available in plastic and alloy designs. Plastic flow switches include the noryl-based FS-3 fixed for liquids up to 1.0 GPM and gasses up to 12 CFM, the polypropylene based FS-380P for liquids up to 2.0 GPM and the polypropylene FS-150 for liquids up to 5 GPM. Alloy switches include the stainless steel/brass FS-927 for flows up to 1.5 GPM, the stainless/brass FS-380 for flows up to 2.0 GPM and the brass OR stainless steel FS-10798 for flows up to 20 GPM. Many of the flow switches can be used for gas applications as well.

  • ►  Switches • Flow Switches • Shuttle Flow Switches 

    For: Entry

    Gems Sensors offers shuttle flow sensors in both plastic and alloy construction. Plastic flow shuttles (PVC or polypropylene) are available in 0.25 to 5.0, and 0.5 to 2.0 GPM ranges, and have 3/4" port size and fixed settings. Alloy flow shuttles (bronze or stainless steel) are available in 0.75 to 14.0, 0.75 to 10.0 and 0.5 to 100.0 flow rates and are available in either fixed or adjustable settings.

  • ►  Valves • Gas Valves 

    For: Entry

    Gas valves are utilized for regulating, stopping, or starting gas flows in a variety of heating applications.

    Gems Sensors & Controls offers B Series solenoid valves for medical equipment, semiconductor equipment, HVAC, and printing applications. These valves feature CV ratings ranging from 0.018 to 0.430, 2-3 way functionality, and MOPD ratings up to 400 PSI. They are available in a variety of wattages, body materials, and orifice sizes.

  • ►  Sensors • Liquid Level Sensors • Multi Point Level Sensor 

    For: Entry

    Gems Sensors & Controls offers UCL-510 ultrasonic multi-point level sensors for the following applications: slurries, paints, beverages, food, chemical feed, automation control, waste-water, water, etc. These sensors feature 1" NPT mounts, 2" dead band/beam widths, ranges up to 49", and 4-20 mA outputs.

  • ►  Sensors • Liquid Level Sensors • Ultrasonic Liquid Level Sensors 

    For: Entry

    Gems offers ultrasonic liquid level sensors, transmitters and switches. Their UCL-510 sensor features a 49" range (1245mm) and 2" (51mm) of beam width and dead band. A non-contact alternative is optional. Gems switches handle pressures to 1000 psi (69 bar).

  • ►  Sensors • Magnetic Sensors • Magnetic Reed Sensors 

    For: Entry

    Gems Sensors & Controls is a manufacturer of level, pressure, flow and proximity switches in addition to pressure transducers, miniature solenoid valves and liquid level control units. Product offerings include float level switches featuring a magnetic reed sensor within the stem.

  • ►  Switches • Vacuum Switches 

    For: Entry

    Vacuum switches are designed to regulate flow, primarily in automobile engines.

    Gems Sensors & Controls manufactures general purpose, vacuum pressure, and solid state pressure switches designed for use in rough environments. Their switches are are piston/diaphragm designed, and available in aluminum, brass, reinforced plastic, stainless steel, and zinc-plated steel enclosures with options of Buna-n, Teflon® coated Kapton®, stainless steel, PTFE, EPDM, or Viton® for wetted parts and surfaces.

  • ►  Switches • Optical Switches 

    For: Entry

    Optical switches route an optical signal from one or multiple input ports to one or more output ports.

    Gems Sensors offers a line of plastic and alloy electro-optic level switches, as well as Opto-Pak controllers. Plastic electro-optical switches are available in five different single-point level configurations, while the alloy design is offered in two styles. Their Opto-Pak operates with any 12V DC input electro-optical series switch.