This single channel electronic timer has a timing capacity of 23 hours, 59 minutes, and 59 seconds, and features a clock with last time set memory.Timing capacity: 23 hours / 59 minutes / 59 secondsClock feature with last time set memoryLay flat on a bench, use the flip-open stand for a vertical view, carry it on a lab coat with the convenient pocket clip, or use the magnetic back for metal surface attachmentRequires one LR44 battery (included)CE marked, RoHS compliantFeatures a Certificate of Calibration and individual serial number; tested and calibrated in H-B’s exclusive triple accredited/registered ISO/IEC 17025:2017, A2LA accredited laboratory (Cert #2448.01), against equipment whose calibration is traceable to NIST.