The 700DN001048150D100230A is a 2-wire solid-state hour meter from the Curtis 700 Series that displays elapsed time only when powered. It features a 6-digit, 5mm non-backlit LCD capable of recording up to 99,999.9 hours with an accuracy of 0.1%. This model supports a wide operating voltage range of 48–150VDC or 100–230VAC and is housed in a rectangular, IP65-rated case. Data is retained for over 25 years by its nonvolatile EEPROM memory, and it operates reliably in temperatures from -40°C to +85°C. Its silent operation makes it ideal for tracking scheduled maintenance and warranty periods in industrial vehicles, medical equipment, and other commercial machinery.