Gems Sensors Industrial Pressure, Level, Flow Sensors, and Solenoid Valves

Pressure Transmitters and Transducers 3100 / 3200 / 2200 Series

Gems Sensors 3100, 3200, 1100, 1200, 2200, and 2600 series industrial pressure transmitters and transducers deliver dependable continuous measurement of gauge, absolute, and differential pressure across hydraulic, pneumatic, and process machinery.

The 3100/3200 series features a sputtered thin-film CVD sensing element fused to a 17-4 PH stainless steel diaphragm, providing exceptional shock and vibration resistance, long-term calibration stability, and cavitation protection up to 2200 bar.

Series 2200/2600 housed in rugged 316L stainless steel are certified for hazardous environments according to ATEX and IECEx intrinsically safe standards.

These transmitters incorporate integrated EMC filtering, microprocessor temperature compensation, and sealed electrical connectors designed for demanding factory operating conditions and continuous duty cycles.

Pressure ranges from 0.5 to 2200 bar, analog 4-20 mA, 0-10 V, ratiometric 0.5-4.5 V outputs, G1/4 and 1/4 NPT ports.

Electromechanical Pressure and Vacuum Switches PS61 / PS71 / PS75 Series

Gems Sensors PS61, PS71, PS75, PS31, and PS41 electromechanical pressure and vacuum switches provide robust limit switching and safety shutdown across machine tool hydraulics, lubrication skids, and industrial compressors.

Utilizing diaphragm-piston actuation mechanisms coupled with snap-action SPDT or SPST microswitches, these units switch electrical loads up to 10 A without auxiliary relays.

Rugged zinc-plated steel or stainless steel housings with tamper-resistant adjustment screws enable precise field threshold configuration under severe vibration.

Precision alloy steel springs maintain setpoint accuracy without mechanical drift across hundreds of thousands of operational cycles, while protective terminal boots shield adjustment screws from contaminants.

Set points from vacuum to 400 bar, Buna-N, Viton, EPDM, PTFE diaphragms, over 1 million operating cycles.

Float Level Switches and Level Transmitters LS-7 / LS-700 / LS-800 Series

Gems Sensors LS-7, LS-700, LS-800, LS-3, LS-1700 float switches and XM-800 continuous level transmitters deliver reliable level monitoring for lubricants, fuel tanks, process chemicals, coolant reservoirs, and water treatment vessels.

Hermetically sealed reed switches are actuated by permanent magnets housed inside buoyant floats, isolating electrical circuits from fluid contact. Multi-point LS-800 stems support up to six customized switching levels along a single immersion probe extending up to 3.5 meters.

Standard threaded and flanged mounting connections enable fast installation into industrial storage tanks, sumps, and process reactors of varied depths.

Float materials: 316L stainless steel, polypropylene, PVDF, Buna-N; fluid temperature range -40 °C to +150 °C.

Electro-Optic and Capacitive Level Sensors ELS-950 / CAP-300 Series

Gems Sensors ELS-950, ELS-1100, ELS-1150 electro-optic level sensors and CAP-300 capacitive sensors feature completely solid-state designs without moving parts, eliminating risks of mechanical jamming, sticking, or component wear.

Electro-optic sensors detect liquid presence through infrared refraction angle shifts within a conical glass or polysulfone prism, achieving millisecond response times.

Capacitive CAP-300 units are engineered for coolant and lubricant tanks, filtering out false trips from foam, coating build-up, and condensation. Ultra-compact sensor envelopes allow easy integration into restricted piping spaces, fluid manifolds, and tight cooling passages.

Compact M12, 1/4 NPT, G1/2 threads, pressure ratings up to 170 bar, NPN/PNP transistor outputs, 5-28 VDC supply.

Liquid Flow Switches FS-380 / FS-400 / FS-500 Series

Gems Sensors FS-380, FS-380P, FS-400, FS-480, and FS-500 flow switches ensure dependable flow verification and equipment interlock for cooling circuits, high-speed CNC spindles, industrial chillers, and chemical feed lines.

In FS-380 piston models, a spring-loaded magnetic piston shifts under fluid dynamic pressure to trip an isolated reed switch at precise flow set points. FS-500 vane-type switches fit pipe sizes from 1 to 6 inches, reliably handling process fluids carrying particulate matter.

Corrosion-resistant alloy and engineered polymer bodies guarantee extended service lifetimes in continuous 24/7 industrial manufacturing operations across plant utilities.

Set points from 0.08 to 200 L/min, brass, Noryl, and 316 stainless steel bodies, operating pressures up to 70 bar.

Turbine Flow Sensors and RotorFlow Indicators RFO / FT-110 Series

Gems Sensors RotorFlow indicators (RFO, RFA, RFI models) and FT-110 / FT-210 turbine flow sensors combine visual flow verification with high-accuracy electrical signal transmission for automated fluid management.

The vivid orange paddle rotor visible through a clear polysulfone window provides immediate visual confirmation of fluid motion, while integrated Hall-effect pickups generate pulsed outputs (RFO) or 4-20 mA signals (RFA).

FT-110 turbine meters deliver precision liquid metering for low-viscosity chemicals with ±3% accuracy. Precision sapphire and ceramic bearings minimize rotational friction, ensuring excellent measurement repeatability across dynamic flow ranges in automated batching systems.

Flow ranges from 0.5 to 120 L/min, PPS composite rotors with ceramic shafts, pulse frequency and 4-20 mA outputs.

Miniature Solenoid and Pinch Valves A / B / D / M Series

Gems Sensors A, B, C, D, and M series miniature solenoid valves and BL series pinch valves are engineered for precise fluidic switching in medical analyzers, biotechnology instruments, pneumatic automation, and high-speed packaging equipment.

Direct-acting valves are available in 2-way and 3-way configurations with orifice sizes from 0.5 mm to 8 mm. BL series external pinch valves actuate flexible silicone or C-Flex tubing externally, ensuring zero dead volume, complete fluid isolation, and contamination-free chemical handling.

High-efficiency electromagnetic coils deliver rapid response times across millions of duty cycles with low power consumption under continuous rapid cycling.

12V/24V DC and 110V/220V AC coils, 316 stainless, brass, and PEEK bodies, Viton, EPDM, PTFE seal options.

Warrick Level Controls and Safe-Pak Intrinsically Safe Relays

Gems Sensors Warrick series conductance level controls (Series 16, 17, 26, 27) and Safe-Pak intrinsically safe relays provide automated pump sequencing, tank level maintenance via conductivity probes, and safe sensor actuation in explosive environments.

Warrick solid-state controllers detect conductive fluids between immersion probes with adjustable sensitivity up to 5.5 MOhm, guarding against pump dry-running. Safe-Pak barriers restrict electrical energy in sensor field wiring to non-igniting levels complying with ATEX, UL, and CSA standards.

These control modules mount directly on standard 35 mm DIN rails, interfacing seamlessly with industrial control panels and plant SCADA systems.

DIN rail mounting, 316L stainless conductance probes, international ATEX, IECEx, UL, and CSA certifications.