Sentinel InstaCheck+
Water Testing Kit & App

Our InstaCheck app has been updated and its time to make the switch. The new InstaCheck+ app is quicker, smarter and easier to use but still has all the great features as the existing InstaCheck app.

The old ‘InstaCheck’ app will not completely stop working, but will be phased out over time.

To ensure that you can continue to test without a problem, make sure to download the new InstaCheck+ app on your chosen app store.

Why Upgrade to InstaCheck+? What is new?

What’s Staying the Same?

Instant results from Sentinel’s trusted water testing kit
Compliance with Part L and BS7593 regulations
Offline access for testing anywhere
No subscription required
Professional PDF reports for customers and stakeholders

How to Switch

Delete the old InstaCheck app from your device
Download InstaCheck+ from your app store
Log in with your existing credentials - your account carries over
Start testing with the new streamlined experience

Need help?

Call Customer Services: 01928 704 330

Download InstaCheck+

About Sentinel

Sentinel is a company with a clear goal: we offer water treatment products and services that provide the best lifetime protection for heating and hot water systems. Originally launched in the UK by Grace Dearborn in 1988 and subsequently a subsidiary of the leading multinational General Electric, Sentinel has operated independently since 2005, expanding its international reach and range of innovative solutions. As of 2021, Sentinel is owned by Aalberts N.V., and sits in the hydronic flow control cluster.

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Guarantee Registration

Contact United Kingdom

01928 704330
customer.services@sentinelprotects.com