Emergency & Safety-Critical

When it matters most, it must work.

An emergency call point that fails when needed is worse than no call point at all. These products sit idle for months or years in extreme conditions, then must activate correctly on the first press. No second chances. RNC solid-state interfaces eliminate the mechanical failure modes that make conventional emergency buttons a liability.

Key challenge
Life-safety reliability after years of dormancy in extreme outdoor conditions
Key technology
IP69K
Sealed
IK10+
Impact rated
<10µA
Solar/battery
3mm
Through metal
50M+
Activations
Application areas

Where failure is not an option.

Emergency communication stations
Campus, parking structure, and public space emergency call stations. Blue light towers, help phones, and SOS points deployed by leading manufacturers.
Fire alarm call points
Manual call points for fire alarm systems. EN 54 compliant. Must activate reliably after years of dormancy in any environmental condition.
Tunnel emergency stations
Road and rail tunnel SOS points. Extreme humidity, washdown cleaning, diesel soot, vibration. Must function after years without test.
Platform and railway
Platform emergency points, track-side call stations. Solar-powered, unattended, alpine to coastal conditions.
Area of refuge and elevator
Elevator emergency call, area of refuge call points, panic buttons. ADA compliant. Must be operable by anyone in any condition.
Industrial emergency stop
Emergency stop and safety controls in industrial environments. Glove operation, chemical exposure, vibration, extreme temperatures.
Why solid-state

Why solid-state piezo for emergency equipment.

The defining characteristic of this market is that failure is not measured in inconvenience or cost, but in safety. A call point that does not respond when pressed is a liability. Every design decision must serve one objective: the button works when someone needs it.

See the full technology comparison
First-press reliability
No contacts to corrode, no domes to fatigue during dormancy. Activates correctly after years of exposure.
Any user, any condition
Thick gloves, wet hands, cold hands, panicked hands. Force-based, no skin contact required.
Structural armor
Senses through up to 3mm stainless steel. The housing is the protection. Nothing to pry, pull, or punch through.
Solar and battery operation
Under 10 microamps. Below battery self-discharge. Remote stations operate indefinitely without grid connection.
Illuminated identification
Integrated LED for visual location and status. Red, yellow, or custom colors. Visible in darkness and low-visibility conditions.
Self-diagnostic capability

Confirmed operational. Not assumed operational.

If an emergency call point fails silently, the failure is only discovered when someone needs it most. PT Plus self-diagnostic capability changes this.

Every station in the network can be remotely verified without physical activation. Basic self-diagnostic confirms electronics health. Full self-diagnostic tests the complete signal chain including the mechanical interface. For safety-critical applications, this is not a convenience feature. It is the difference between a network you know works and a network you hope works.

Remote health check
Verify every call point in the network from a central system. No site visits, no physical testing.
Full signal chain test
Tests electronics and the mechanical sensing interface. Confirms the button will respond to a physical press.
Compliance documentation
Automated test logs for regulatory compliance. Proof that every station was verified, not just assumed operational.
Deployed

Proven in the most demanding conditions.

RNC piezo switches are deployed in emergency communication stations manufactured by leading North American and European OEMs, operating across campus, parking structure, public space, and transit environments.

A European transit authority replaced mechanical call points across a network of remote solar-powered platform stations operating in conditions reaching -40C. Previous buttons required annual replacement due to seal degradation and contact corrosion. RNC switches have operated continuously with zero maintenance interventions. Power draw is below the battery's self-discharge rate.

Emergency Equipment
Building an emergency communication product?

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Self-diagnostic
Need remote verification?

Learn how PT Plus self-diagnostic confirms every station in your network is operational.

PT Plus technology