Capacitive Level Sensors


When your system requires non-mechanical, high-accuracy level detection—especially with viscous, sticky, or sloshy media—Gems Sensors’ Capacitive Level Sensors deliver unmatched performance with no moving parts, fast response, and zero maintenance.

Ideal for fluids that challenge traditional float-based technologies—such as coolants, chemicals, adhesives, oils, and semi-solids—our sensors provide point-level detection by sensing changes in capacitance at the fluid boundary. This makes them highly reliable in applications where foam, turbulence, or debris can disrupt other sensor types.

Whether installed in compact medical devices, rugged industrial machines, or high-performance automation systems, Gems’ capacitive sensors offer compact form factors, solid-state reliability, and easy integration with control systems.


Level Sensor Products

coolant level - lp

 


Additional Product Lines


Pressure Sensors

pressure sensors

Flow Sensors

flow sensors

Valves

Valves

Controllers

west-lp-2025

Need guidance on selecting the right part for your application?

Talk to our application specialists or send us an RFQ today!


Why Choose Gems Sensors?

Gems Sensors has decades of experience delivering OEM fluid detection solutions across global industries. Our capacitive level sensors are factory-calibrated, solid-state, and engineered for harsh operating conditions—offering reliable service in systems where mechanical floats simply don’t last.

We support OEMs with custom sensor development, design-in expertise, and global supply chain support for scale.

LS-7 Series Compact Float Switches – Ideal for tight spaces in engine bays and power units

UCL-510/520 Ultrasonic Level Sensors – For non-contact, maintenance-free sensing in coolant reservoirs

ULS-200 & CAP-300 Capacitive Sensors – Solid-state option for applications where moving parts are not ideal

 

Capabilities

  • Wide Technology Compatibility
    Float-based (reed switch), solid-state capacitive, and electro-optic sensors to suit every application type.
  • Multiple Mounting & Thread Options
    Vertical, horizontal, side-entry, flange, and custom fittings to match your tank design.
  • Compact Designs for Tight Spaces
    Ideal for small tanks and equipment with strict space constraints.
  • High Resistance to Vibration, Pressure, and Temperature
    Proven performance in mobile and industrial equipment.
  • Materials for Fluid Compatibility
    Available in plastic, brass, and stainless steel to match your coolant, oil, fuel, or chemical needs.
  • Factory-Configurable Outputs
    Open/closed switch logic, voltage types, wire leads, and connectors to fit your system.

Applications

  • Data Centers
  • Hydraulic and Lubrication Systems
  • Fuel and Oil Tanks in Mobile Equipment
  • Coolant Reservoirs in Power Equipment
  • Battery Cooling and EV Systems
  • Industrial Process Tanks and Chemical Dosing
  • Medical Devices and Laboratory Equipment

Benefits

  • Simple, Reliable Operation
  • Quick Installation and Minimal Maintenance
  • Highly Customizable for OEM Integration
  • No Calibration Required
  • Cost-Effective Solution for High/Low-Level Alerts
  • Trusted by Global OEMs Across Industries
  • Global Support for EU and International Markets

Frequently Asked Questions

1. How does a capacitive level sensor work?

Capacitive sensors detect changes in the electrical capacitance caused by the presence or absence of fluid. When the sensor tip or face comes into proximity with a fluid, its capacitance shifts—triggering a switch or signal.

2. What types of fluids are compatible ith capacitive sensors?

They work with a wide range of fluids, including water-based solutions, coolants, oils, chemicals, adhesives, and viscous media. They’re also suitable for semi-solids or slurries in industrial and food-grade systems.

3. Can these sensors be standardized across multiple product lines?

Yes. Gems offers customizable sensor designs that can be adapted across multiple OEM platforms, helping you streamline sourcing, integration, and support while maintaining consistency across systems.