Shat-R-Shield Ironclad Zero-Watt INH Series Exit Sign
Shat-R-Shield Ironclad Zero-Watt INH Series Exit Sign
Self-Luminous Tritium Exit Sign with No Wiring, Batteries or Electricity

The Shat-R-Shield Ironclad Zero-Watt INH Series is a self-luminous exit sign designed for demanding correctional, institutional and other secure-facility applications. Powered by sealed tritium light sources, it requires no electrical wiring, batteries or external power and is available with 10- or 20-year service-life ratings.
- Construction:
- 6” high letters with 3/4” stroke available with Red, Green, or Black faceplate suitable for use in hazardous atmospheres and damp locations. Meets NEC Article 500, Class 1, 11 and 111 conditions
- Heavy-duty cast aluminum frame available in single-face and double-face configurations.
- Beveled edges and rounded corners withstand high impacts
- Tamper-proof mounting hardware prevents unauthorized removal
- Standard exterior finish: Brushed Aluminum with clear lacquer coating.
- Aluminum stencil face with field selectable chevron directional indicators
- 3/8” clear Polycarbonate shield seals lamp compartment and prismatic refractor lens
- Operating temperature -55°C to 80°C
- Available in service life ratings of 10 or 20 years
- Exterior Finish Options: Brushed Aluminum is the standard/default finish. Black and White finishes are also available.
- Face/Background Color Options: Red, Green, or Black.
- Optional MB Mounting Bracket: Available for both single-face and double-face signs.
- Electrical:
- Non-electrical, internally illuminated by sealed tritium gas light sources
- Requires no external light source, electrical power, wiring or batteries 100% reliable, maintenance free and always on
- Recyclable at the end of its useful life
- Illumination:
- Green light output for maximum visibility in emergency conditions
- 100 foot visibility rating
- Mounting and Dimensions:
- Mounting: Wall mount or ceiling mount
- Configurations: Single face or double face
- Dimensions: 16.75” x 12.25” x 1.87”
- Certifications: Tested, approved and listed by Underwriters Laboratories to UL 924, and meets NFPA 101 Life Safety Code
- Warranty: Limited warranty for the rated life of the product
Zero-Watt Exit Lighting for Correctional & Institutional Facilities
The Ironclad Zero-Watt INH Series is designed for applications where dependable exit illumination is required without electrical wiring, batteries or an external power source. Because the sign is continuously self-luminous, it does not depend on facility power or battery backup to remain illuminated.
Its heavy-duty cast-aluminum frame, impact-resistant polycarbonate shield and tamper-resistant mounting hardware make the INH Series well suited for correctional, detention and institutional environments where durability and resistance to unauthorized removal are important.
The INH Series is available in single- or double-face configurations with 10- or 20-year rated service lives. It provides a 100-foot visibility rating and is UL 924 listed and designed to meet NFPA 101 Life Safety Code requirements.
For a powered heavy-duty correctional exit sign, consider the Shat-R-Shield Ironclad SDI Correctional Exit. For a slimmer powered LED exit sign, see the Shat-R-Shield Ironclad RZ Slim LED Exit Sign.
Explore our complete selection of Correctional & Detention Facility Lighting for additional exit signs, emergency lighting and secure-facility fixtures.
About Shat-R-Shield Lighting
Shat-R-Shield manufactures specialized LED and emergency lighting for correctional, institutional and other demanding environments. Its Ironclad product family includes durable lighting and exit-sign solutions designed for secure facilities and other high-abuse applications.
Explore more Shat-R-Shield Lighting available from Anchortex.