A flame detector is a sensor designed to detect and respond to the presence of a flame or fire, allowing flame detection. Responses to a detected flame depend on the installation, but can include sounding an alarm, deactivating a fuel line (such as a propane or a natural gas line), and activating a fire suppression system. When used in applications such as industrial furnaces, their role is to provide confirmation that the furnace is working properly; it can be used to turn off the ignition system though in many cases they take no direct action beyond notifying the operator or control system.

A flame detector can often respond faster and more accurately than a smoke or heat detector due to the mechanisms it uses to detect the flame.

Profire offers all variant of flame scanner/detector to meet the application requirement and fuel types. The sensor range have UV, UV+IR, IR and VL which shall select with respect to the fuel types. Also Rays-Tech offers the additional accessories for LOS and/or FOC with respect to the burner and/or furnace types.