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Danger No Admittance Authorised Personnel Only Signs
£21.99
In stock
SKU
MM015AE*
Danger No Admittance Authorised Personnel Only Signs combine a general hazard warning with a prohibition message restricting entry to authorised people. Use them at controlled entrances where staff, contractors or visitors need to recognise both the danger and the access rule before proceeding.
Danger no admittance authorised personnel only signs combine a general danger warning with a clear access restriction. Fit them at entrances to restricted or hazardous areas so staff, contractors and visitors can recognise the risk and know that entry is limited to authorised people.
Where to Install
Position this sign on the approach side of a door, gate, barrier or wall marking a restricted area. It should be visible before anyone reaches the point where they must decide whether to enter, with both the yellow danger panel and red access restriction kept clear of open doors, stored goods and other obstructions.
Viewing Distance
The distance below is practical positioning guidance rather than a certified visibility specification. Check the finished installation from the normal approach route because lighting, mounting height, obstructions and the viewer's eyesight all affect how early the wording can be read.
| Sign size | Practical viewing guide | Best placement use |
|---|---|---|
| H 300 × W 500 mm | Approximately 5–8 metres (16–26 feet) | Restricted doors, gates, barriers and approach points where the instruction must be understood before entry |
Expected Safety Outcomes After Installation
The sign gives people two pieces of information at the same decision point: there is a danger to recognise and entry is restricted. Correct positioning should help people make that decision before crossing into the controlled area.
✅ Earlier recognition that the approaching area presents a danger and is not open for unrestricted entry.
✅ Less ambiguity for visitors, contractors and staff about whether they are permitted to continue past the access point.
✅ A clearer visual prompt to stop, check authorisation and follow the site's access arrangements before proceeding.
Specifications
- Messages: “Danger” and “No admittance authorised personnel only”
- Sign type: dual-message hazard warning/prohibition
- Size: H 300 × W 500 mm
- Orientation: landscape
- Shape: rectangle
- Supplied as: single sign
- Display area: indoors/outdoors
- Fitting method: wall mount
- Material options: Rigid Plastic, Vinyl, Removable/Repositionable Vinyl
- Material thickness: various
- Finish: satin/gloss
- Rigid Plastic: fixings not supplied
- Vinyl: self-adhesive backing
- Adhesive Rigid Plastic: self-adhesive backing
- Removable/Repositionable Vinyl: self-adhesive backing and can be repositioned
- Non-photoluminescent
- Non-reflective
- Background colours: yellow/red
- Text colours: white/black
- Symbol colours: black/red
- Warning pictogram: black exclamation mark within a yellow warning triangle
- Prohibition pictogram: pedestrian figure crossed by a red prohibition bar
- Symbols conform to ISO 7010 where applicable
Installation Guidance
Access-point mistakes to avoid
❌ Do not position the sign inside the restricted area where the entry decision has already been made.
❌ Do not place it where an open door, gate, vehicle or stored material can hide either message panel.
❌ Do not mount it among excessive competing information that makes the danger and prohibition messages difficult to pick out.
Where the sign is not enough
❌ Do not rely on this sign alone where physical access controls, guarding, supervision or other safety measures are needed.
❌ Do not use the general danger symbol as a substitute for identifying a specific hazard when people need that information to act safely.
❌ Do not depend on the sign in poorly lit conditions without ensuring the non-reflective, non-photoluminescent face remains adequately illuminated.
Better restricted-entry positioning
✅ Install it on the normal approach side of the entrance so the complete message can be read before anyone crosses the boundary.
✅ Keep the yellow warning and red prohibition panels within a clear sightline from the directions people are most likely to approach.
✅ Recheck visibility after installation and whenever nearby equipment, storage or access arrangements change.
Frequently asked questions
What are Danger No Admittance Authorised Personnel Only Signs used for? They are dual-message signs for entrances where you need to warn people of a general danger while making it clear that only authorised personnel should enter.
Where should I position this sign? Put it before the restricted entry point, preferably where people naturally look as they approach a door, gate or barrier. They should be able to understand the instruction before deciding whether to proceed.
Which material should I choose? Rigid plastic provides a separate wall-mounted sign but requires suitable fixings, which are not supplied. Vinyl has a self-adhesive backing, while the removable/repositionable vinyl option can be adjusted after initial positioning.
Can I use this sign where the exact hazard needs to be identified? The yellow panel uses a general danger symbol rather than identifying one specific hazard. If people need to know the precise risk, such as electrical, chemical or machinery danger, use appropriate hazard-specific information alongside or instead of this sign.
Will this sign remain visible in darkness? It is non-photoluminescent and non-reflective, so you should not rely on it to provide its own low-light visibility. Position it where normal or suitable supplementary lighting keeps the message readable.
Where should I position this sign? Put it before the restricted entry point, preferably where people naturally look as they approach a door, gate or barrier. They should be able to understand the instruction before deciding whether to proceed.
Which material should I choose? Rigid plastic provides a separate wall-mounted sign but requires suitable fixings, which are not supplied. Vinyl has a self-adhesive backing, while the removable/repositionable vinyl option can be adjusted after initial positioning.
Can I use this sign where the exact hazard needs to be identified? The yellow panel uses a general danger symbol rather than identifying one specific hazard. If people need to know the precise risk, such as electrical, chemical or machinery danger, use appropriate hazard-specific information alongside or instead of this sign.
Will this sign remain visible in darkness? It is non-photoluminescent and non-reflective, so you should not rely on it to provide its own low-light visibility. Position it where normal or suitable supplementary lighting keeps the message readable.
Features and Benefits
Features
- ✓ Side-by-side general danger and access-prohibition messages
- ✓ H 300 × W 500 mm landscape format
- ✓ Rigid plastic, vinyl and removable/repositionable vinyl options
- ✓ Non-reflective and non-photoluminescent design for indoor or outdoor display
Benefits
- ✓ Communicates both the need for caution and the entry restriction at one decision point
- ✓ Gives approaching personnel a broad, straightforward message that can be checked before entry
- ✓ Lets you select a material and fixing approach suited to the intended mounting surface
- ✓ Visually separates the warning and prohibition instructions so their different purposes are easier to understand
Related Restricted Access Signs
For locations where a danger message is unnecessary, compare the simpler no admittance authorised personnel only signs.
Where several entrances require the same restriction, consider the authorised personnel only pack of 6 signs.
For hazardous locations where permission and risk need communicating together, use hazardous area authorised only signs.
You can compare further restricted-entry options in our prohibition safety sign range.
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