Ensure critical fire safety compliance with this Glow In The Dark Keep Locked Shut Sign. Designed for areas housing fire doors, electrical cabinets or safety equipment, this photoluminescent fire door sign remains visible in low light and emergency conditions. Manufactured in the UK using durable 1.3mm rigid plastic, the sign charges from natural or artificial light, making it ideal for internal fire safety routes. Featuring bold white text on a green background, it meets the requirements of the Health and Safety (Safety Signs and Signals) Regulations 1996 and BS ISO 7010 standards. Easy to install, this sign helps businesses clearly instruct staff to keep access doors locked, helping to prevent tampering or accidental access. Part of our best-selling glow-in-the-dark fire safety signage range, trusted by site managers, schools and facility teams nationwide.