The Fireye InSight II flame scanners incorporate two internal flame relays with adjustable ON/OFF thresholds and two 4-20 mA analog outputs, thereby eliminating the need for a remote flame amplifier.

The Fireye InSight II scanners are powered by 24 vdc and have electronic self-checking. Model 95DSS3-1 has one 8-pin and one 12-pin electrical cable quick disconnect. Models 95DSS3-1CEX and -1WICEX have internal terminal blocks for cable connection. The scanners have either an attached Keypad & VFD display, or an infrared transmitter for a remote handheld keypad/display.

The InSight II is best suited to multi-fuel applications that require the highest level of sophistication and flexibility (addition choices of modulation frequencies, and the time-saving Auto Config function), and remote modbus communications capability (e.g. larger multi-burner boilers and furnaces). The InSight II scanner contains both the infrared and ultraviolet flame sensors described below. The infrared flame sensor, responds to infrared radiation from 700 to 1700 nanometers wavelength. The ultraviolet flame sensor, responds to ultraviolet radiation from 295 to 320 nanometers wave-length.