Apollo AlarmSense Manual Call Point has been designed to operate on a loop of AlarmSense compatible two wire fire alarm systems. An alarm is initiated by pressing the resettable element. The manual call point signals to the control and indicating equipment using Zener voltages. An alarm status is indicated through the rotation of the resettable element, displaying and yellow and black indication bars and a solid red LED. The manual call point can be easily reset from the front using the supplied reset key.