The H3DK-M1 AC/DC24-240 is a multi-range multi-mode Analogue Timer with screw terminations, the time-limit DPDT output contacts can be changed to time-limit SPDT and instantaneous SPDT output contacts using a switch. This H3DK-M1 series timer operates on eight modes A/B/B2/C/D/E/G/J. Sequence checks are easily performed by setting an instantaneous output to 0 and it has 8 time ranges from 0.1second to 1200hours.