HORSTMANN (SECURE) S21 SERVICEPLUS 24-HOUR TIMESWITCH

HORSTMANN (SECURE) S21 SERVICEPLUS 24-HOUR TIMESWITCH.

The Horstmann ServicePlus S21 24-Hour Programmer is an ideal replacement or upgrade for an existing setup, as it uses industry standard wiring the S21 is easy to replace. The ServicePlus S21 allows the user to set a schedule which is used for everyday of the week with up to 3 on/off periods per day, advance and boost function are also available.

The ServicePlus is mains powered with a battery backup and features a bright backlit display with automatic summer/winter time changes.

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The HORSTMANN (SECURE) S21 SERVICEPLUS 24-HOUR TIMESWITCH is a genuine, brand new Horstmann Controls product, covered by a Horstmann Controls manufacturer's guarantee.

Available for same day despatch if ordered before 7pm (Monday – Friday), otherwise despatching will be on the next working day. For the delivery options available for this product, please add it to your Shopping Basket or see our delivery options page.

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