Caution, test in progress safety sign.

Safety signs. Caution, test in progress sign. Part of our electrical maintenance safety signs. Electrical maintenance safety signs. Safe operating signs for installation, maintenance and repair. Caution, test in progress. Rigid plastic with drill holes (for suspending). Suitable for temporary or permanent use.�Hazard warning and prohibition safety signs to ISO EN 7010 and Safety Signs and Signals Regulations 1996.MSS113 Size 200mm x 150mm. Material rigid plastic.