--- product_id: 6191118 title: "Seachem Alerts Combo Pack, 6 Months" brand: "seachem" price: "£13.06" currency: GBP in_stock: true reviews_count: 13 category: "Seachem" url: https://www.desertcart.co.uk/products/6191118-seachem-alerts-combo-pack-6-months store_origin: GB region: United Kingdom --- # Compact 2-monitor pack Instant color-coded alerts Dual ammonia & pH detection Seachem Alerts Combo Pack, 6 Months **Brand:** seachem **Price:** £13.06 **Availability:** ✅ In Stock ## Summary > 🐠 Never miss a beat—keep your tank thriving with instant alerts! ## Quick Answers - **What is this?** Seachem Alerts Combo Pack, 6 Months by seachem - **How much does it cost?** £13.06 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/6191118-seachem-alerts-combo-pack-6-months) ## 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 - • **Trusted by Thousands:** Join over 2,900 aquarists who rely on Seachem’s precision alerts to protect their aquatic life. - • **Instant Visual Alerts:** Color-changing indicators provide quick, at-a-glance water quality status. - • **Compact & Discreet Design:** Slim rectangular monitors fit seamlessly inside your aquarium or filter. - • **Dual Environment Compatibility:** Perfect for both freshwater and marine tanks (ammonia alert works universally). - • **Continuous Water Safety Monitoring:** Stay effortlessly informed with real-time ammonia and pH detection. ## Overview The Seachem Alert Combo Pack includes two compact monitors that continuously detect free ammonia and pH levels in your aquarium. Designed for both freshwater and marine environments, these color-coded devices provide instant visual feedback to help you maintain optimal water conditions and safeguard your aquatic pets. Trusted by thousands, this pack offers reliable, easy-to-use monitoring that fits discreetly inside your tank or filter. ## Description Miscellaneous aquarium ammonia Alert continuously monitors and detects free ammonia in marine or freshwater aquaria. Ph. Alert is a unique color device designed to be placed in the aquarium or filter and moall items are brand new, never worn and never used.. Review: Accurate quick check of key water parameters. - Love these. Nice to walk by tank and at a glance be reassured to couple key water parameters. I’ve tested against my liquid drops and the results were spot on. I keep a set in all my tanks. One thing I’ve noticed is they seem to lose accuracy if allowed to dry or have air exposure like during routine water changes. I am going to start placing at the bottom of tank instead of near top where I have been using them. Review: Good quality product however I didn't read it correctly because ... - Good quality product however I didn't read it correctly because the PH is for freshwater only. I have a salt water tank and couldn't use the PH monitor. The ammonia monitor works great. Shortly after I put it in my tank my water parameters went all crazy and the monitor turned blue. It was the monitor that saved my critters because I would have not known that my tank was outta wack with out it. I was able to save all my critters and get the tank back to normal quickly when I probably wouldn't have been the wiser with out it. Too bad the PH one wouldn't work. ## Features - Seachem Laboratories Inc Alert Combo Pack for Fish and Aquatic ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B004HSQSLG | | Best Sellers Rank | #14,681 in Pet Supplies ( See Top 100 in Pet Supplies ) #120 in Aquarium Water Treatments | | Brand | Seachem | | Built-In Media | Seachem Laboratories Inc Alert Combo Pack for Fish and Aquatic | | Color | Yellow, Green, Blue | | Customer Reviews | 4.2 out of 5 stars 2,906 Reviews | | Global Trade Identification Number | 00000116001205 | | Item Type Name | Seachem Laboratories Inc Alert Combo Pack for Fish and Aquatic | | Item Weight | 4.54 g | | Manufacturer | Seachem Laboratories, Inc. | | Manufacturer Warranty Description | Warranty | | Mfr Part Number | 75319 | | Model Number | 28155 | | Number of Items | 1 | | Number of Packs | 1 | | Shape | Rectangular | | Size | 2 Monitors | | UPC | 781163338147 000116001205 | | Unit Count | 2 Count | ## Product Details - **Brand:** Seachem - **Color:** Yellow, Green, Blue - **Item Weight:** 4.54 g - **Number of Packs:** 1 - **UPC:** 781163338147 000116001205 ## Images ![Seachem Alerts Combo Pack, 6 Months - Image 1](https://m.media-amazon.com/images/I/818Cff6bNeL.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. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Accurate quick check of key water parameters. *by S***O on July 13, 2026* Love these. Nice to walk by tank and at a glance be reassured to couple key water parameters. I’ve tested against my liquid drops and the results were spot on. I keep a set in all my tanks. One thing I’ve noticed is they seem to lose accuracy if allowed to dry or have air exposure like during routine water changes. I am going to start placing at the bottom of tank instead of near top where I have been using them. ### ⭐⭐⭐⭐⭐ Good quality product however I didn't read it correctly because ... *by M***H on November 30, 2016* Good quality product however I didn't read it correctly because the PH is for freshwater only. I have a salt water tank and couldn't use the PH monitor. The ammonia monitor works great. Shortly after I put it in my tank my water parameters went all crazy and the monitor turned blue. It was the monitor that saved my critters because I would have not known that my tank was outta wack with out it. I was able to save all my critters and get the tank back to normal quickly when I probably wouldn't have been the wiser with out it. Too bad the PH one wouldn't work. ### ⭐⭐⭐⭐⭐ Works as they should *by J***Z on June 29, 2026* When im setting up my fish tanks I purchase these. They help me make sure my parameters are right. I have other products from the same brand. Very happy with my purchase ## 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 --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.co.uk/products/6191118-seachem-alerts-combo-pack-6-months](https://www.desertcart.co.uk/products/6191118-seachem-alerts-combo-pack-6-months) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-08-16*