A sensor configuration for a combustion appliance comprising: a sensor with a first and a second sensor terminal, the sensor being configured to produce a signal offset between its terminals in response to receiving a first amount of light of at least 1.1 Lux, and to produce equal signals at its terminals in response to receiving a second amount of light of less than 1.1 Lux, a differential amplifier comprising a first and a second supply terminal, an output channel, an inverting (-) and a non-inverting (+) input channel, a load member connecting the output channel to one of the supply terminals (7, 8), wherein the first sensor terminal connects to the inverting input channel (-) and the second sensor terminal connects to the non-inverting input channel (+), such that the sensor is configured to apply signals at the input channels (-, +), the differential amplifier being configured to produce a current at its output channel in response to the signal offset applied by the sensor between the inverting (-) and the non-inverting (+) input channels, and the load member being configured to dissipate a first amount of power as a function of the current produced at the output channel, the differential amplifier being configured to draw a first load current from the supply terminals (7, 8) in response to the signal offset applied by the sensor between the inverting (-) and the non-inverting (+) input channels, the differential amplifier being configured to draw a second quiescent current from the supply terminals (7, 8) in response to equal signals applied by the sensor at the input channels (-, +), wherein the first load current exceeds the second quiescent current by at least fifty percent, and the second quiescent current is less than fifteen microamperes, characterized in that the first sensor terminal directly connects to the inverting input channel (-) and the second sensor terminal directly connects to the non-inverting input channel (+). a sensor with a first and a second sensor terminal, the sensor being configured to produce a signal offset between its terminals in response to receiving a first amount of light of at least 1.1 Lux, and to produce equal signals at its terminals in response to receiving a second amount of light of less than 1.1 Lux, a differential amplifier comprising a first and a second supply terminal, an output channel, an inverting (-) and a non-inverting (+) input channel, a load member connecting the output channel to one of the supply terminals (7, 8), wherein the first sensor terminal connects to the inverting input channel (-) and the second sensor terminal connects to the non-inverting input channel (+), such that the sensor is configured to apply signals at the input channels (-, +), the differential amplifier being configured to produce a current at its output channel in response to the signal offset applied by the sensor between the inverting (-) and the non-inverting (+) input channels, and the load member being configured to dissipate a first amount of power as a function of the current produced at the output channel, the differential amplifier being configured to draw a first load current from the supply terminals (7, 8) in response to the signal offset applied by the sensor between the inverting (-) and the non-inverting (+) input channels, the differential amplifier being configured to draw a second quiescent current from the supply terminals (7, 8) in response to equal signals applied by the sensor at the input channels (-, +), wherein the first load current exceeds the second quiescent current by at least fifty percent, and the second quiescent current is less than fifteen microamperes, characterized in that the first sensor terminal directly connects to the inverting input channel (-) and the second sensor terminal directly connects to the non-inverting input channel (+).