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Title: Tough to program, poor life span
Review: As others have stated, the programming is a little tough, the "manual" button requires a bit of attention to get right. I used this to switch a block heater (12.5 Amps) for a diesel car. It sat in an unheated garage to perform this duty. Failure mode started with loss of display elements, then loss of programming and finally completely unreadable, garbled display. Failure was less than 3 years.
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