Seachem Alert Combo – Continuous Ammonia & pH Monitoring for Aquariums

The Seachem Alert Combo is a dual-pack monitoring solution for freshwater and marine aquariums, combining two sensor-based indicators: Ammonia Alert® and pH Alert®. Designed for simplicity and long-term use, these compact, colour-changing devices continuously monitor water conditions without the need for testing kits, strips, or chemicals.

Ammonia Alert® tracks free ammonia levels, the most toxic form, with clear colour changes ranging from yellow (safe) to blue (toxic), reacting within 15 minutes. It lasts over a year and works in both marine and freshwater environments. pH Alert® provides instant visual feedback on pH shifts in the range of 5.4 to 8.0 for freshwater tanks, lasting up to four times longer than comparable products.

Key Features:

• Continuous monitoring of ammonia and pH levels
• Colour indicators require no sampling or test chemicals
• Ammonia Alert® is suitable for freshwater and marine aquariums
• pH Alert® is for freshwater use only
• Both devices are compact (1.5" x 2.5") and unobtrusive
• Ammonia Alert® responds to changes in approx. 15 minutes
• pH Alert® responds to pH shifts in approx. 10 minutes
• Long lifespan: Ammonia Alert® lasts over 1 year, pH Alert® up to 6 months
• Easy installation – place directly in tank or filter

Perfect for aquarists who want hassle-free water monitoring, the Seachem Alert Combo offers reliable, real-time updates to help maintain a healthy aquatic environment.

Aquacadabra acts as credit broker/intermediary and not as a lender.

Klarna's credit products are provided by Klarna Bank AB, which is authorised and regulated by the Swedish Financial Services Authority, with limited supervision by the Financial Conduct Authority. More information can be found here.

Newpay finance options are provided through Deko’s platform by NewDay. P.D. Aquatics Ltd, t/a Aquacadabra is an Introducer Appointed Representative of Pay4Later Ltd, t/a Deko, which is authorised and regulated by the Financial Conduct Authority (ref no 728646) and is a credit broker, not a lender. NewDay Ltd is authorised and regulated by the Financial Conduct Authority (ref no 690292) and is authorised by the Financial Conduct Authority under the Payment Services Regulations 2017 for the provision of payment services (ref no 555318). More information can be found by clicking the newpay option above, or in the Newpay FAQs.

We really want you to be happy with the product that you've received. If however, when the goods arrive they're not what you want, then no problem - we have a 60 day no quibble return guarantee. Just let us know that you're going to return the item(s) by contacting us(stating your Order Number) and complete the returns packing slip that will have been included with your delivery. This will help us to quickly identify the item that you have returned (unopened and unused) - and we'll put a refund through for you.