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?

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.

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

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)

Can this be used in a pond?

Pond is too big to rely on this one spot.

Are they a one time use?

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.

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Seachem Alert Combo pH & Ammonia Continuous Reading

Product ID: 255650700

Details

Battery description
Lithium-Ion
Brand
Seachem
Colour
Yellow Green
Power source
Battery
Product dimensions
38L x 64W x

🔋Long-lasting lithium-ion battery

🟡1-year ammonia alert

🟢6-month pH monitoring

SAR 83

Duties & taxes included

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Description

🐠 Keep your aquarium thriving with nonstop, precise alerts!

EXTENDED BATTERY LIFE - Up to 1 year of uninterrupted ammonia alerts and 6 months for pH—worry less, enjoy more.
EASY INSTALLATION USE - Push-button control and floor mount design for effortless setup and monitoring.
COMPACT DISCREET DESIGN - Sleek rectangular monitors blend seamlessly into any freshwater setup.
DUAL CONTINUOUS MONITORING - Stay ahead with real-time pH & ammonia tracking for your aquarium’s health.
PRECISION SENSOR TECHNOLOGY - Advanced sensors ensure accurate readings to protect your aquatic ecosystem.

The Seachem Alert Combo offers continuous, real-time monitoring of both pH and free ammonia levels in freshwater aquariums. Featuring advanced sensor technology and powered by a long-lasting lithium-ion battery, it provides up to 6 months of pH monitoring and 1 year of ammonia alerts. Compact and easy to install, this dual-monitor system ensures your aquatic environment stays safe and balanced with minimal effort.

Specifications

ASIN	B004HSQSLG
Battery Description	Lithium-Ion
Best Sellers Rank	#3,755 in Pet Supplies ( See Top 100 in Pet Supplies ) #15 in Fish Medication & Health Supplies
Brand	Seachem
Built-In Media	Sensor
Color	Yellow, Green, Blue
Control Method	Push Button
Country of Origin	USA
Customer Reviews	4.2 4.2 out of 5 stars (2,824)
Global Trade Identification Number	00000116001205
Item Dimensions L x W x H	38L x 64W x 10H millimeters
Item Type Name	Alerts Combo Pack, 2 Monitors,2 Count (Pack of 1)
Item Weight	0.01 Pounds
Manufacturer	Seachem
Mfr Part Number	75319
Model Number	28155
Mounting Type	Floor Mount
Number of Items	1
Number of Packs	1
Power Source	Battery Powered
Sensor Technology	pH and ammonia
Shape	Rectangular
Size	2 Monitors
UPC	781163338147 000116001205
Unit Count	1 Count

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