Pyrheliometer with Data Logger is available in two versions, one has an analogue output of 0-1 V, the other is 4-20 mA. The Pyrheliometer is protected against reversed polarity, over voltage and short-circuits. The Pyrheliometer can be operated from a wide range of supply voltages, making them ideal for power-critical applications. The Pyrheliometer with Data Logger is capable of providing efficient performance.