Seachem Alerts Combo Pack 6 Months
Alert Combo™
- Seachem sensor technology
- Includes Ammonia Alert® and pH Alert®
- Continuously monitors ammonia and freshwater pH
- No chemicals or test procedures are required
The Alert Combo™ pack combines Ammonia Alert® (1 card) and pH Alert® (1 card). Ammonia Alert® and pH Alert® are almost half the size of competing products. At 1.5″ x 2.5″, they are small, clear, and unobtrusive, so they won’t detract from the view of your aquarium. Simply place Ammonia Alert® and pH Alert® visibly anywhere in the aquarium or filter. It’s that easy. No chemicals or test procedures are required.
Ammonia Alert®
Ammonia Alert®’s sensor changes color when ammonia levels rise, providing early warning of potential harm to fish.
pH Alert®
pH Alert® continuously monitors freshwater pH and changes color when levels go outside the safe range for fish.
| Feature | Details |
|---|---|
| Monitoring Type | Ammonia and pH |
| Duration | 6 months |
| Size | 1.5″ x 2.5″ |
| Installation | Place in aquarium or filter |
FAQ
How long does the Alert Combo pack last?
The Alert Combo pack provides continuous monitoring for 6 months.
Can I place the sensors in different areas of the aquarium?
Yes, you can place Ammonia Alert® and pH Alert® visibly anywhere in the aquarium or filter.
Do I need to perform any test procedures or add chemicals?
No chemicals or test procedures are required. The sensors work automatically.

Deirdre Harris –
I’ve had the Alert Combo for three months and it’s been very reliable. The sensors are small and don’t look out of place. I noticed a color change when ammonia levels rose, which helped me catch a problem early. Easy to install and works well with my freshwater tank.
Leonard Parr –
The pH and ammonia alerts are responsive and show changes clearly. I placed one in the filter and one near the surface. It’s much easier than using test kits. Only downside is the sensors need to be replaced after six months.
Harry Sharp –
Great product for monitoring water quality without hassle. I didn’t have to do any testing or add chemicals. The color changes are noticeable and timely. Works perfectly in my 55-gallon tank.