Cleanroom Control and Environmental Monitoring Systems

Door Status Indicator

A flush LED door station that shows whether a cleanroom or airlock door is available, occupied, locked or in alarm before a user pulls the handle.

Red-Green Door Status
Clear Symbol Indication
Flush Stainless Face
Buzzer or Request Button Option

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Product Introduction

The cleanroom door status indicator receives lock, door-contact and interlock states and converts them into simple red, green and optional amber visual messages. Text or internationally recognized symbols can identify available, wait, occupied and alarm conditions. A flush stainless faceplate avoids projecting lamp housings around frequently cleaned entrances. Optional request button and buzzer integrate local user interaction, while low-voltage inputs connect to the airlock controller without placing interlock logic inside the indicator.

Key Features

High-contrast red and green LEDs communicate door availability before physical contact.

Symbols and concise labels reduce dependence on lengthy operating instructions.

A flush stainless plate presents a durable wipeable surface at the doorway.

Optional request and buzzer functions share the same compact entrance station.

Customer Product Concerns

Door users need status information before pulling the handle, but the indicator must not create ambiguous or contradictory signals.

A user repeatedly pulls a door that the interlock has intentionally locked.A red wait or locked indication appears before the user touches the handle.

A green lamp remains on even though the door is physically open.The indicator receives both lock and door-contact states rather than only the release command.

Text-only instructions are misunderstood by multilingual staff.Clear color and symbol combinations communicate the basic door condition.

Surface lamp boxes collect residue beside the door frame.A flush stainless faceplate minimizes protrusions and exposed ledges.

Typical Applications

Personnel airlock entrancesMaterial airlock doorsPass box door stationsControlled corridor access

Technical Parameters

Typical materials and dimensions for a flush cleanroom door status indicator are shown below.

Core Material	High-brightness LEDs and FR-4 driver board behind 304 stainless steel faceplate
Panel Thickness	25-55 mm recessed body depth
Effective Width	80-150 mm faceplate width
Maximum Length	Up to 250 mm faceplate height
Steel Facing Thickness	1.0-1.5 mm 304 stainless steel faceplate
Core Density	7900-8030 kg/m³ for stainless faceplate
Thermal Conductivity	14-17 W/(m·K) for 304 stainless steel face
Surface Finish	Brushed stainless face with red, green and optional amber LED symbols
Joint Type	Flush wall box with rear pluggable status inputs and optional request-button terminals
Customization	Available based on the intended application and operating environment.

Available Options

Red-green or three-color statusText or symbol graphicsRequest buttonIntegrated buzzer

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