Cranford Controls R6847L SyCALL Resettable Surface Mount Call Point; red surface mount version only is approved to EN54-11 very high visibility of the alarm condition visible in the dark via the unique luminescent resettable element feature easy and economical installation high impact resistant ABS plastic material also available in blue, green and yellow clever six configurations in one unit design for reduced inventory holding surface mount and flush mount options available extremely easy to reset via the robust twist and set key system