Alert Combo

🧪 Usage Instructions

Initial Setup

1. Rinse both indicators with clean water before placing them in the aquarium.
2. Position them fully submerged and in a visible area (not in the sump or dry zone).
3. Allow 15–30 minutes for the sensors to acclimate and display readings.
4. Refer to the color chart printed on the device for real-time status.

Maintenance Dosing

• Ammonia Alert lasts up to 1 year; pH Alert lasts 3–6 months.
• Clean gently with a soft cloth if covered in algae or debris.
• Do not use soap or chemicals during cleaning.
• Replace when readings become inconsistent or display becomes hard to read.

Frequently Asked Questions (FAQ)

Q: How does the Alert Combo compare to test kits?
A: It offers continuous, real-time monitoring, unlike test kits that only show snapshot results during testing.

Q: Will it interfere with water chemistry or stress fish?
A: No. The sensors are non-toxic and completely passive—safe for all tank inhabitants.

Q: Can I use this combo in a planted tank or reef aquarium?
A: Yes. It’s suitable for all freshwater and marine setups. However, pH Alert is calibrated for freshwater only, while Ammonia Alert works in both.

Q: How accurate are the readings?
A: The sensors detect free ammonia (the toxic form) and provide a broad but reliable pH range (5.4–8.0) in real time.

Q: Do water conditioners like Prime affect readings?
A: Ammonia Alert may show trace levels even when Prime is present, since it measures free ammonia, not total or bound forms.

You may return most new, unopened items within 7 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).

You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).

If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.

We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.

When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.

Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.