The Hagner External Detectors are normally provided with a two metre flexible lead. When required, extension cables can be used to increase the distance between the detector and the instrument. The Hagner standard extension cables have a length of 5 metres but other lengths can be provided.
The Hagner SA1 Light Intensity Adaptor is intended for use with the Hagner S1, S2, S3 and S4 Universal Photometers or with the Hagner E2X and E4-X Digital Luxmeters. By connecting the SA1 adaptor to one of these instruments it is possible to determine, for instance, light intensity and angular light distribution from lamps, luminaries etc. This can be done under normal ambient lighting conditions.