... , green,white, yellow J-SAP-M-04D manual call pointTechnical Parameters Manual call point J-SAP-M-04DRated voltage DC24VMaximum current 8AColour ... SAP-M-04D manual call point is easy to operate. When the fire happen, just need to break the break glass, the alarm ... right side of manual call point, which has the same effect as break the break glass. J-SAP-M-04D fire alarm call point break glass button