SKU: 76331403742

Seachem Alerts Combo

Sale price$155.70 Regular price$173.00
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Description

Seachem Alerts ComboSeachem Alerts Combo Seachem Alerts Combo is used for continuously monitoring ammonia levels and pH in freshwater aquariums without the need for tests or chemicals. Seachem sensor technology Continuously monitors ammonia and freshwater pH No tests, no strips 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

Seachem Alerts Combo

Seachem Alerts Combo is used for continuously monitoring ammonia levels and pH in freshwater aquariums without the need for tests or chemicals.

  • Seachem sensor technology
  • Continuously monitors ammonia and freshwater pH
  • No tests, no strips

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.

Why it is Different

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. 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. 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 your 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 5.8 and 8.2. No tests, no strips, just constant readings. Freshwater Only.

Why it is Different

pH Alert™ lasts up to 4 times as long as competing products. pH Alert™ is also almost half the size of competing products. It's small, clear, and unobtrusive, so it won't detract from the view of your aquarium.

Directions

Simply place pH Alert™ visibly anywhere in the aquarium or filter. It’s that easy. No chemicals or test procedures are required. When first put in service, response time will be about 30 minutes. Thereafter, pH shifts will register within ten minutes.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 76331403742

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TJ Singh
Birmingham, US
★★★★★ 4
Not luxury at all
Color: Black, Color: Black
Not fascinating.. cheap china made look and feel.. in fact it hurt my wrist on corner where its sharp and upper button design is so sharp that it digs inside skin .. watch has non metallic band .. its not leather and looks like cheap synthetic rubber material and it has got wrinkles in just one use. Dial looks good. Tried under water on tap no water ingress . I am planning return and going for Fossil from store .. not buying online any more. Not recommended who looks for luxury watches.
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Reviewed in the United States on November 27, 2025
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Mkds
Houston, US
★★★★★ 5
Bonito
Color: Black
Bonito
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Reviewed in the United States on March 21, 2026
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Edward
Dallas, US
★★★★★ 5
Excelente
Color: Black
Excelente producto
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Reviewed in the United States on December 9, 2025
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Alejandro Bogliotti
Port Orchard, US
★★★★★ 5
Reloj hermoso
Color: Silver-Black
Espectacular!
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Reviewed in the United States on March 1, 2026
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Fary M.
Belleville, US
★★★★★ 5
Excelente calidad. Envío rápido.
Color: Black, Color: Black
Es hermoso, la calidad está increíble, aún mi pareja no lo ve pero espero le encante ❤️😌 es un aficionado de los relojes y le hacía falta uno así
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Reviewed in the United States on December 18, 2025

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