Harwil Corporation

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Oxnard, CA  |  800-562-2447

Harwil Corporation is a renowned leader in the field of level switch manufacturing, offering a wide range of innovative products and exceptional service capabilities. With a rich history spanning over several decades, Harwil has established itself as a trusted name in the industry, known for its superior quality, reliability, and customer satisfaction.


Harwil Corporation specializes in the design, development, and production of high-quality level switches for various industries. Their extensive product line includes:

1. Float Switches: Harwil manufactures a diverse range of float switches that utilize buoyancy to detect liquid levels. These switches are designed to provide accurate and precise measurements, ensuring optimal control and automation in industrial processes.

2. Flow Switches: Harwil's flow switches are designed to monitor the flow of liquids or gases in pipelines. These switches are equipped with advanced sensing technology to accurately detect flow rates, providing crucial data for efficient process control and system protection.

3. Conductivity Level Switches: Harwil's conductivity level switches are ideal for applications where the conductivity of the liquid is a critical factor. These switches can detect changes in conductivity to determine the presence or absence of liquid, making them suitable for a wide range of industrial and commercial applications.

4. Pressure Switches: Harwil offers a variety of pressure switches that are designed to monitor and control pressure levels in fluid systems. These switches are engineered with precision and reliability in mind, ensuring accurate pressure measurements and system protection.

Service Capabilities:

In addition to their exceptional product offerings, Harwil Corporation is committed to providing outstanding service capabilities to their customers. Their dedicated team of experts possesses deep industry knowledge and technical expertise, enabling them to deliver comprehensive solutions tailored to meet specific customer requirements. The company's service capabilities include:

1. Customization: Harwil understands that every industry and application has unique needs. Their team works closely with customers to develop customized level switch solutions that perfectly align with their specific requirements. From product design and development to manufacturing, Harwil ensures that each solution is tailored to provide maximum efficiency and performance.

2. Technical Support: Harwil's experienced engineers and technicians are readily available to provide expert technical support to customers. Whether it's assistance with installation, troubleshooting, or product selection, the company's knowledgeable team offers prompt and reliable support to ensure smooth operation and customer satisfaction.

3. Rapid Response: Harwil values its customers' time and strives to deliver prompt responses to inquiries and requests. The company maintains efficient communication channels and a streamlined process to ensure quick turnaround times, allowing customers to meet their project deadlines without delay.

4. Quality Assurance: Harwil places a strong emphasis on product quality and reliability. Their level switches undergo rigorous testing and quality control measures to ensure consistent performance and durability. The company adheres to industry standards and regulations, assuring customers of reliable and safe products.


Harwil Corporation stands out as a reputable level switch manufacturer, offering a comprehensive range of products and exceptional service capabilities. With their commitment to quality, customization, technical support, and rapid response, Harwil has built a solid reputation as a trusted partner in the industry. Whether it's float switches, flow switches, conductivity level switches, or pressure switches, Harwil's solutions cater to diverse industrial needs, providing reliable and accurate level sensing for enhanced process control and efficiency.

Level Switches Power Pages

Level Switches

Level Switches

A level switch is an electrical or mechanical method for measuring the level of a liquid, powder, or granule material. It is designed to activate an alarm if the material level in a container passes a predetermined height or depth...

Pressure Gauges

Pressure Gauges

A pressure gauge is a method of measuring fluid, gas, water, or steam intensity in a pressure powered machine to ensure there are no leaks or pressure changes that would affect the performance of the system. Pressure systems are designed to operate within a specific pressure range...

Pressure Switches

Pressure Switches

A pressure switch is a mechanical or electronic device activated by the pressure of the process fluid upon reaching a certain threshold or setpoint. A pressure switch can have a bourdon tube, piston, diaphragm, or membrane that moves or deforms according to the amount of pressure exerted by the system...

Pressure Sensors & Pressure Controls
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