20 Channel Expansion Module for DAS240 and DAS240BAT 20 Channel module for the Sefram DAS240 and DAS240BAT multi-channel handheld recorders. • 20 analogue channels module for DAS240 • Input (each channel): voltage, thermocouples, Pt100-1000, current (with optional shunt) • You can add up to 9 modules to the standard set of the DAS240 to reach 200 analogue channels