7 day programmable timer Honeywell | Home

Honeywell ST9400C is a 7-day, 2-channel programmer for heating and hot water systems. It allows you to schedule up to three on/off events per day, providing precise control over your home's energy consumption.

Honeywell ST9400C is a 7-day, 2-channel programmer for heating and hot water systems. It allows you to schedule up to three on/off events per day, providing precise control over your home's energy consumption.

Honeywell ST9400C is a 7-day, 2-channel programmer for heating and hot water systems. It allows you to schedule up to three on/off events per day, providing precise control over your home's energy consumption.