Next Product ECU-HS Extinguishant hold off switch Please login to see your pricing Login SKU: ECU-HS Category: Extinguishant Ancillaries Description Shrouded "Hold Off" push button for use with Sigma extinguishant systems Downloads ECU-HS Data Sheet.pdf Related products Quick View Quick View Signs, Warning Signs and Labels, Extinguishant AncillariesWS-GEN-ESI-WP Read more Weatherproof Sign (generic) "Extinguishing System Inoperative" Quick View Quick View Signs, Warning Signs and Labels, Extinguishant AncillariesKM-FS-WS Read more ECU & WS (Generic) Warning Sign Surround for Flush Fitting Quick View Quick View Signs, Warning Signs and Labels, Extinguishant AncillariesECU-WS-ESI Read more RS485 Warning Signs: "EXTINGUISHING SYSTEM INOPERATIVE" Quick View Quick View Signs, Warning Signs and Labels, Extinguishant AncillariesWS-GEN-FA-DNE Read more Warning Sign (generic) "Fire Alarm/Do Not Enter"