An electronic accelerator, comprising: a pressure sensor coupled to a fluid supply line to detect a pressure in the fluid supply line, the fluid supply line disposed between a fluid supply and at least one sprinkler head; a first control valve coupled to a second control valve that when open permits fluid to flow from the fluid supply through the fluid supply line to the at least one sprinkler head, the second control valve comprises a pressure chamber having fluid, the first control valve coupled with the pressure chamber; a control circuit that receives an indication of the pressure detected by the pressure sensor, evaluates a trigger condition indicative of the at least one sprinkler head being open based on the pressure detected by the pressure sensor, and responsive to the trigger condition being satisfied, causes the first control valve to open to reduce a chamber pressure in a chamber of the second control valve to cause the second control valve to open to permit fluid to flow from the fluid supply through the fluid supply line to the at least one sprinkler head, wherein the trigger condition is satisfied when at least one of (i) the pressure detected by the pressure sensor is less than or equal to a threshold pressure and (ii) a rate of change of the pressure detected by the pressure sensor is less than or equal to a threshold rate of change; characterized in that the electronic accelerator comprises a housing in which the pressure sensor, the control circuit and the first control valve are disposed, the housing comprising: an outlet coupled with the first control valve to couple the first control valve with the second control valve to allow fluid from the pressure chamber of the second control valve to be released via the outlet when the first control valve is opened; a supply port to couple the pressure sensor to the fluid supply line; and an atmosphere port coupled with the first control valve to couple the first control valve with atmosphere. a pressure sensor coupled to a fluid supply line to detect a pressure in the fluid supply line, the fluid supply line disposed between a fluid supply and at least one sprinkler head; a first control valve coupled to a second control valve that when open permits fluid to flow from the fluid supply through the fluid supply line to the at least one sprinkler head, the second control valve comprises a pressure chamber having fluid, the first control valve coupled with the pressure chamber; a control circuit that receives an indication of the pressure detected by the pressure sensor, evaluates a trigger condition indicative of the at least one sprinkler head being open based on the pressure detected by the pressure sensor, and responsive to the trigger condition being satisfied, causes the first control valve to open to reduce a chamber pressure in a chamber of the second control valve to cause the second control valve to open to permit fluid to flow from the fluid supply through the fluid supply line to the at least one sprinkler head, wherein the trigger condition is satisfied when at least one of (i) the pressure detected by the pressure sensor is less than or equal to a threshold pressure and (ii) a rate of change of the pressure detected by the pressure sensor is less than or equal to a threshold rate of change; characterized in that the electronic accelerator comprises a housing in which the pressure sensor, the control circuit and the first control valve are disposed, the housing comprising: an outlet coupled with the first control valve to couple the first control valve with the second control valve to allow fluid from the pressure chamber of the second control valve to be released via the outlet when the first control valve is opened; a supply port to couple the pressure sensor to the fluid supply line; and an atmosphere port coupled with the first control valve to couple the first control valve with atmosphere. an outlet coupled with the first control valve to couple the first control valve with the second control valve to allow fluid from the pressure chamber of the second control valve to be released via the outlet when the first control valve is opened; a supply port to couple the pressure sensor to the fluid supply line; and an atmosphere port coupled with the first control valve to couple the first control valve with atmosphere.