---
product_id: 255650700
title: "Alert Combo pH & Ammonia Continuous Reading"
brand: "seachem"
price: "฿1494"
currency: THB
in_stock: true
url: https://www.desertcart.co.th/products/255650700-alert-combo-ph-and-ammonia-continuous-reading
store_origin: TH
region: Thailand
---

# Dual sensor for freshwater aquariums Continuous pH monitoring up to 6 months Ammonia alert lasts up to 1 year Alert Combo pH & Ammonia Continuous Reading

**Brand:** seachem
**Price:** ฿1494
**Availability:** ✅ In Stock

## Summary

> 🐟 Keep your aquarium flawless with nonstop water quality insights!

## Quick Answers

- **What is this?** Alert Combo pH & Ammonia Continuous Reading by seachem
- **How much does it cost?** ฿1494 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.th](https://www.desertcart.co.th/products/255650700-alert-combo-ph-and-ammonia-continuous-reading)

## Best For

- seachem enthusiasts

## Why This Product

- Trusted seachem brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Precision pH Tracking:** Continuous pH monitoring ensures optimal water conditions for thriving fish.
- • **Stay Ahead of Toxicity:** Real-time ammonia alerts protect your aquatic ecosystem before it’s too late.
- • **Made in America Quality:** Trust in durable, high-quality sensors designed for serious aquarium enthusiasts.
- • **Effortless Aquarium Care:** No batteries or complicated setups—just reliable, continuous readings.
- • **Long-Lasting Performance:** Up to 1 year ammonia and 6 months pH sensor life means less hassle, more peace of mind.

## Overview

The Seachem Alert Combo offers continuous, dual monitoring of ammonia and pH levels in freshwater aquariums, with ammonia sensors lasting up to 1 year and pH sensors up to 6 months. Lightweight and battery-free, it provides reliable, real-time alerts to maintain a healthy aquatic environment, all crafted with American quality standards.

## Description

Seachem Alert Combo pH & Ammonia Continuous Reading

## Features

- Continuous monitoring for both ammonia and ph in freshwater
- Ammonia alert provides continuous monitoring of free ammonia levels in the freshwater and marine aquaria and lasts up to 1 year
- Ph alert provides continuous monitoring of ph in the freshwater aquarium lasting up to 6 months

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Pet Type | Fish and Aquatic |
| Product Dimensions | 15.24 x 16.51 x 2.06 cm; 4.54 g |
| Item model number | 28155 |
| Pet Life Stage | all |
| Allergen Information | Yam Free |
| Color | Yellow, Green, Blue |
| Size | 2 Monitors |
| Number of Items | 1 |
| Quantity | 1 |
| Special Features | Made In America1 |
| Specific Uses | Freshwater aquarium |
| batteries required | No |
| Batteries Included | No |
| Item Weight | 4.54 g |

## Product Details

- **Brand:** Seachem
- **Material:** Plastic
- **Tank volume:** 30 Liters
- **Special features:** Made In America1
- **Product dimensions:** 38L x 64W x 10H millimeters

## Images

![Alert Combo pH & Ammonia Continuous Reading - Image 1](https://m.media-amazon.com/images/I/712B4+LYuHL.jpg)

## Questions & Answers

**Q: How do you read the tests? I put them in a few hours ago and it is not at all clear what I am reading. What do you look for to learn the reading?**
A: There should be a color change.  Make sure you take the film off the inside sensor pad (circle in the middle).  Then, it should take an hour or so for the color to change and stay consistent.  Then, you compare it to the color wheel around the center circle.  My Ph is high, but constant, so my vet said that’s ok.  My dot is almond color (a color that doesn’t show up on the wheel.

**Q: I accidently threw away to instructions.  where might i find another set?  i've noticed change in ph or ammonia in 24+ hours since i've placed them in**
A: you don't need instructions, read the color code on the circle.  If it pH is off, you cannot "fix" it as sudden change do more harm.  For Ammonia, do 20% water change if it is no longer low (light yellow)

**Q: Can this be used in a pond?**
A: Pond is too big to rely on this one spot.

**Q: Are they a one time use?**
A: That would depend on how you define one time. You stick them in and they adjust their color read the ph and NH3 levels continuously. The NH3 should last a year or so, the ph about 6 months. So they will change colors back and forth as your levels change but after a year (for the ammonia) they will stop working and not change anymore. At that point you have to throw it out and get a new one. 

Just want to reiterate, these aren’t for replacing testing but as a an early warning system. Everytime I look at my tank I check the ammonia alert just to make sure I am reading 0 NH3 but I still do weekly water testing just to make sure. Also, it will tell you only free ammonia so a standard API test may register the NH4 (ammonium) and indicate there is ammonia while the alert is at 0 cause it is only showing the more toxic NH3. The ph indicator seems spot on based on my API high range ph test but others have found it to be less accurate. YMMV.

## Frequently Bought Together

- Alerts Combo Pack, 2 Monitors,2 Count (Pack of 1)
- API FRESHWATER MASTER TEST KIT 800-Test Freshwater Aquarium Water Master Test Kit, White, Single, Multi-colored
- PAIZOO Fish Tank Digital Thermometer Accurate LED Display to ±0.9°F Tank Thermometer Aquarium Temperature Measurement Suitable for Fish, Axolotl, Turtle or Aquatic

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*Product available on Desertcart Thailand*
*Store origin: TH*
*Last updated: 2026-03-10*