Sangamo have manufactured time clocks in the UK for over 90 years and at our current site in Port Glasgow, Renfrewshire since 1951.

Organisations and individuals everywhere trust Sangamo products to offer control where they need it. Our reputation for reliability is simply the best in the industry. We are best known for our Round Pattern Time Switch – widely regarded as the most dependable time clock around.

When you see the Sangamo name you know you are getting a product which is simple to install, easy to use and has a reliability you can depend on giving you the confidence to truly fit and forget.

Round Pattern Time Switch

We have been manufacturing our famous Round Pattern Time Switches in our Port Glasgow factory since 1951, having sold over 11 million and counting, we often hear from customers who have had them installed, problem-free, for over 50 years or more.

Our time switches have many varied applications but the most popular include street, stairwell and security lighting, heating, ventilation and equipment control. Options in the range include 3 or 4 pin models and a ‘day omit’ device allowing you to turn your switch full off on selected days of the week.

Each model in the Q550 Solar range comes in four different ‘solar zone’ versions, these are adjusted slightly to allow for the difference in sunrise/sunset times across the British Isles. In most cases your local wholesaler will only stock the zone in which they are located.


Our Powersaver Boost models are simple, multi-application time switches. Although primarily used for the control of water heating they can also be used for a multitude of applications including the control of panel heaters, heated towel rails or combi boilers. Each model is controlled with a simple single button operation and offers three selectable boost periods. All standard sized models fit into a single gang patress box.

The Powersaver Electronic Controllers which, in addition to the benefits of the Boost models, provide the ability to program up to 3on/off operations per day. A back-lit LCD screen displays the time and status of the unit. Available in either 24hour (PSD), 5/2day (PSW) or 7day (PS24/7) programming models which can be used to control water heating, panel heaters, heated towel rails, combi boilers or a multitude of other applications.

The Powersaver PS Dual & PS Dual Flexi are our range of controllers for single, twin or dual element immersion heaters, bridging the gap between bulky, aged electro mechanical controllers and complicated digital versions. Each comes with pre-selectable programs to match your low-rate electricity tariff, including Economy 7, Economy 20 and Eco 20:20. A boost function is also available for a maximum 2 hours limiting peak time use.

Choice Heating Controls

Our popular range of programmers, for controlling hot water and central heating, featuring a bright back-lit display and easy to use push buttons hide an adaptable, feature-rich product. Each product can be switched between 24 hour, 5/2 day and 7 day programming rather than having separate products for each and can be programmed with either 2 or 3 on/off functions per day. The switch between Summer and Winter time is handled automatically so there’s no need to reset the clock twice a year either!

The Choice range also includes a wide selection of thermostats to regulate the temperature of the heating system, allowing for greater control of comfort and energy use. From a basic mechanical dial control unit (Choice RSTAT1) to a feature packed, wireless programmable thermostat (Choice RSTAT9 RF) there is a solution for every home. The range is completed with a Frost Thermostat, which ensures that your pipework is protected against freezing temperatures and a Cylinder Thermostat to regulate the temperature of hot water in the storage tank

Digital & Analogue Time Switches

Our range of digital DIN & Panel time switches have a multitude of applications from public and car-park lighting to signage and store windows. Switches with pulse programming are also ideal for sirens/school bell.

Our ranges include one, two and four channel models covering both standard and solar switches. Many of our products also come with key programming functionality, meaning you can copy full programmes and transfer the same settings on to as many other switches as you require and use the key as a back up storage.