Multipurpose timer features three independently controlled countdown fields with large LCD displays, as well as a 12/24 hr. Clock and chronograph with stopwatch performance and accuracy to 0.01 second. Sliding selector switch allows simultaneous operation of all three timer fields, for successive procedures like print or film developing, or individually for single step operations like hot mounting or laminating. Each field has a distinctive alarm signal pattern, and includes a magnetic back for mounting on metal surfaces. Not illuminated, for darkroom safety.