Honeywell 24 Hour 1 Channel Service Timer ST9100S1007

This 24-hour 1 channel service timer is designed to control heating systems with daily on/off scheduling. It provides straightforward time management for various types of boilers and heating circuits, supporting installation and system servicing needs.

Typically wired in as part of a central heating set-up, this timer is suited for jobs where single-channel control is sufficient. It is commonly used in domestic and light commercial settings to automate heating routines, allowing installers to efficiently programme on-site schedules.