Seachem Alerts Combo Pack 6 Month

• Seachem sensor technology.
• Includes Ammonia Alert and pH Alert.
• Continuously monitors ammonia and freshwater pH.
• No chemicals or test procedures are required.

Ammonia Alert
Ammonia Alert is an innovative color device for continuously detecting and monitoring toxic free ammonia. A sensor changes reversibly from yellow to green to blue, relative to the ammonia concentration. No test kits, chemicals, or procedures are needed. The device detects less than 0.05 mg/L (ppm) free ammonia and alerts you to the #1 killer before any sign of stress. It lasts over a year. Marine or freshwater use. In the absence of free ammonia the unit will assume a yellow or faint yellow-green color. It is normal for the dry sensor to have a greenish hue. It may take up to a few days for a dry sensor to equilibrate with the water. No sampling of water, chemicals, or test procedures are required. The presence of the free ammonia is detectable continuously with a response time of about 15 minutes. Response to decreasing ammonia is slower, requiring about 4 hours to go from TOXIC to SAFE on removal of ammonia. Ammonia Alert lasts over 9 times as long as competing products (over a year compared to 4-6 weeks). Ammonia Alert is also almost half the size of competing products (1.5″ x 2.5″). It’s small, clear, and unobtrusive, so it won’t detract from the view of your aquarium.

Interpretation

As little as 0.02 mg/L of free ammonia will produce a greenish hue on the detector surface. This corresponds to a total ammonia (both ionized and free ammonia) of 0.25 mg/L in marine water at pH 8.3. In freshwater at pH 7.0, this corresponds to 3.6 mg/L total ammonia. Free ammonia is much more toxic than ionized ammonia. As free ammonia, the ALERT color corresponds to about 0.05 mg/L, ALARM to about 0.2 mg/L, and TOXIC to about 0.5 mg/L. The ALERT concentration is tolerated for several days, ALARM for a few days, and TOXIC is rapidly harmful. For emergency ammonia removal, treat with AmGuard This product is not recommended for use at acid pH.

Care

No care is required beyond removing algae with a clean, soft material. Avoid touching the sensor with fingers, since skin oils can damage it. Do not use bleach, soap, detergents or hard objects to clean the sensor. Some dye medications may discolor the sensor. Sensitivity improves with age, provided the unit is not allowed to dry out, however, drying does not permanently impair the unit. For maximum sensitivity, the unit should be read under natural daylight or daylight simulating light. Red enhancing light minimizes green and blue hues, decreasing the apparent sensitivity of the unit. The response of the unit may be checked by holding it briefly over the mouth of an ammonia bottle: color should develop rapidly.

pH Alert

pH Alert is a unique color device designed to be placed in the aquarium or filter and monitor pH continuously. A sensor changes color reversibly to alert you shifts to in pH levels between 5.4 and 8.0. No tests, no strips, just constant readings. Freshwater Only. pH Alert lasts up to 4 times as long as competing products. pH Alert® is also almost half the size of competing products (1.5″ x 2.5″). It’s small, clear, and unobtrusive, so it won’t detract from the view of your aquarium.

How to Use

Place both cards where you can see them, anywhere in the aquarium or the filter. There is nothing to mix and no test procedure — the sensors change colour continuously and you read them against the printed chart.

Ammonia Alert: yellow is safe (below 0.02 mg/L), green is alert (0.05 mg/L), blue is alarm through toxic (0.2–0.5 mg/L and above). It reads free ammonia, the fraction that actually harms fish, not total ammonia. Allow a few days to settle in; after that it responds to a rise in about 15 minutes.

pH Alert: yellow through orange to red across pH 5.4 to 8.0. Allow about 30 minutes initially, then around ten. Read it in natural daylight.

Do not touch the sensor faces — skin oils damage them. Clean algae off with something clean and soft, never bleach, soap, detergent or anything hard.

Tests per Kit

These are continuous monitors rather than a set number of tests: they are read as often as you like for as long as the sensor lasts.

The Ammonia Alert sensor lasts about a year in service before it needs replacing. Both cards measure 1.5 × 2.5 in.

pH Alert is for fresh water only. Ammonia Alert works in fresh and salt water, but is not recommended in acidic water, where almost all ammonia is in the harmless ionised form and the reading tells you little.

What’s in the Box

One Ammonia Alert card and one pH Alert card, each with its printed colour chart.

Freshness & Storage

Every batch we dispatch carries a minimum of 6 months’ remaining shelf life. Store this product in a cool, dry place away from direct sunlight, with the cap or inner foil closed tightly after each use.

Returns & Replacement

Returns are accepted within 7 days of delivery, provided the item is unused and in its original packaging. Manufacturer-sealed items cannot be returned once the seal is broken, and sale-priced items are not refundable.

If your item arrives defective or damaged, message us on WhatsApp with your order number, or email us if you would rather, and we will replace it. Approved replacements are delivered within 3 to 5 business days. Transit damage is covered by insurance on every shipment. If tracking shows delivered but nothing reached you, tell us within 72 hours, which is the reporting window Indian couriers allow. Damage caused during installation or use is not covered; replacement spares for such cases are chargeable.

Full terms are on our Cancellation & Returns page.