PRESSURE CONTROL & DISPLAY

Pressure Switches & Digital Pressure Gauges

Electronic pressure switches with integrated digital display for on/off control, alarm triggering, and local pressure indication. Programmable set points, NPN/PNP switching outputs, and 4-20mA analog output in a single compact device.
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Our Pressure Switch & Gauge Range

Intelligent pressure switches combining digital display, programmable switching outputs, and analog signal in one compact device.

HM40 Digital Pressure Gauge with LCD Display

HM40

Electronic pressure switch with large LCD display for on-site reading and programmable switching.

Range: -0.1~60 MPa

Display: LCD with backlight

Switch: NPN/PNP + 4-20mA

Accuracy: ±0.5% FS

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HM41 Compact Electronic Pressure Switch

HM41

Compact electronic pressure switch for tight-space OEM integration. Programmable set points.

Range: -0.1~60 MPa

Switch: NPN/PNP programmable

Output: Optional 4-20mA

Size: M20×1.5

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How to Choose Between HM40 and HM41

Step 1 — Do you need a local display? The HM40 has a large LCD screen for on-site pressure reading and set point configuration. The HM41 is a compact switch without display, ideal for panel-mounted or embedded OEM applications.

Step 2 — Consider mounting space: HM41’s compact form factor fits tight installations and OEM equipment. HM40 is better for accessible locations where operators need visual pressure readings.

Step 3 — Output requirements: Both offer NPN/PNP switching with programmable set points and hysteresis. HM40 includes 4-20mA analog output as standard for continuous monitoring. HM41 offers optional analog output.

Frequently Asked Questions

A pressure switch provides discrete on/off outputs when pressure crosses a programmable threshold — used for pump control, alarms, or safety shutoff. A pressure transmitter provides a continuous analog signal (4-20mA) proportional to pressure for monitoring. The HM40 combines both functions in one device.

Yes, both HM40 and HM41 support two programmable switching points with adjustable hysteresis. You can set independent high and low alarm thresholds for pump control, pressure relief, or safety shutoff applications.

Yes. Both models handle pressures up to 60 MPa and are designed for hydraulic, pneumatic, and water systems. The 316L stainless steel wetted parts resist most industrial fluids. For aggressive hydraulic oils, consult our engineers about compatibility.

Need a Pressure Switch Solution?

Tell us your pressure range, switching requirements, and mounting constraints. Our engineers will help you select the right model and configure the set points for your application.

Our engineers typically respond within 12 business hours with detailed technical specifications and pricing.

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