The Armstrong 3020ARM Call Point are designed to offered uncompromising quality and reliability regardless of configurations in the aspect of installation efficiency, flexibility and full compliance with the latest BS 5839: PT2 and EN54: PT 11. to facilitate the compability to majority of central control equipment manufactured in the world. A variety of monitoring resistors value are available by request to make Armstrong Call Point easily adopted to most fire alarm system world wide. The Call Point are constructed from fire retardants ABS engineering plastic thus withstand high impact strength and high resistance to heat. Designed to meet BS 5839: PT2 and EN54: PT 11. Each contact provided double terminal for independent input and output connections especially for looping to ensures perfect continuity. Variety of colors available. Special tool operating test facility. Simple but secure and comply with health and safety requirement. Protective film on glass thus protecting the operator from glass fragment.