Honeywell ST9400C

Marsoni

M251S

$377.50

Get it in 3 business days with 1 day shipping. Friday, May 29

Honeywell ST9400CST9400C 7 DAY 2 CHANNEL PROGRAMMER REPLACES ST6400C

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Great plugs and amazing value for the money. Easy to use and tighten and the screw cover works wonderfully. Even comes with a couple extra screws in case you lose one. The sound is better than what I had and I used 14 gauge wire. Plugs were perfect, not too tight at all. I could see having to push for new posts but they are snug and didn't take too much force to put in. 10/10

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Reviewed in the United States on December 27, 2025