The Hydra 2625A Data Logger is differentiated by its built-in non-volatile recording capability. This feature makes data capture and offline storage very flexible and convenient. The memory holds 2047 sets of readings on each of the 21 analog input, 12 digital I/O, and totalizer channels - enough to hold one scan per minute for more than 24 hours. The Hydra Data Logger is ideal for recording data during environmental stress screening, thermal testing, design testing, and other applications that require data logger with up to twenty analog measurement channels.