Skip to main content Skip to search Skip to main navigation

Discover high-quality accessories for the Testomat Limit TH to ensure precise monitoring of water hardness. For trouble-free operation, we recommend using only original Heyl accessories and spare parts, as third-party parts can lead to measurement errors and damage. Our maintenance and service kits provide you with all the components you need for regular care of your device. Professional maintenance every 6 to 12 months extends the service life of your Testomat Limit TH and guarantees accurate measurement results. Clean the measuring chamber and viewing window every 3 months or use the optional self-clean function to significantly reduce the effort required. We offer the appropriate replacement pump and self-clean cleaning solution as accessories for this function. Our sets include cleaning brushes, viewing windows, magnetic stirring bars, hoses and O-rings – everything you need for comprehensive maintenance. Order your accessories conveniently online now and get a 3% discount on Heyl products in the shop. In addition, when you purchase a Testomat Limit device, you will receive a hardness indicator of your choice free of charge. This ensures that your device works reliably and that the water hardness is continuously monitored. If you have any questions, our competent service team is available by telephone at any time.

Accessories for the Testomat Limit TH & buy online

Original Heyl accessories & spare parts for precise water hardness measurement

Discover high-quality accessories for the Testomat Limit TH to ensure reliable monitoring of water hardness. For trouble-free operation and precise measurement results, we recommend using only original Heyl accessories & spare parts. Third-party parts can lead to measurement errors and damage – and void the warranty.

Why regular maintenance is important

Regular maintenance (every six months to annually) is essential to ensure that your Testomat Limit TH continues to function properly. Detailed instructions can be found in the maintenance manual.

The measuring chamber and viewing window must be cleaned every 3 months. If the optional self-cleaning function is used, the required cleaning of the viewing window, mirror and measuring chamber is extended by up to one year, depending on the level of contamination and cleaning interval.

Using the optional cleaning function

To use the cleaning function, a second pump must be installed in the Testomat Limit TH. (Accessory: Retrofit kit for Selfclean function for LIMIT TH, our item number 40681). The Self-Clean cleaning solution (item number: 151105) is used to clean the measuring chamber.

This function saves time and ensures a longer service life for your device.

Why use original Heyl accessories and spare parts?

To ensure smooth operation and accurate measurement results, please use only original accessories and spare parts from Heyl. Third-party accessories can interfere with measurements and cause damage.

Our accessory sets at a glance

Testomat Limit TH maintenance set for Testomat LIMIT (270339): Contents: cleaning brush set, viewing window with groove, viewing window 30x3 rear-surface mirror, magnetic stirring core, inlet hose, outlet hose, filter screen for inlet, flow regulator core and several O-rings.

Annual service set Testomat Limit TH (270359): Contents: 1 x compartment seal 24x2 (33777), 1 x viewing window with groove (40675), 1 piece viewing window 30x3 rear surface mirror (37517), 1 piece magnetic stirring core (40050) and 1 piece O-ring 18x2 (33776)

Repair and service case Testomat Limit TH (270349)

Everything you need for comprehensive maintenance and repair.

Buy accessories online now and save

Place your order conveniently in our online shop and secure a 3% discount. When you purchase a Testomat Limit device, you will also receive a free hardness indicator of your choice.

This ensures that your Testomat Limit TH works reliably and monitors water hardness accurately.

Do you have any questions?

Our service team will be happy to advise you by telephone.

Our service hotline – we are her for you 📞 +49 (0) 5121 7609 99