The Best PH and Thermometers 2025

1. Heritage Products ph Testing Paper 1 Unit

If you are a looking for a quick and easy method for testing your pH levels, Heritage Products pH Testing Paper is just what you are looking for! pH Testing Paper measures aqueous pH levels that measure between 5.

Quick and easy way to check your pH levels Measures aqueous pH levels 15 feet of tape

2. Hot Water Tester 4pk

Save money and prevent scalding when hot water heater is set at the proper temperature. Just place thermometer under the hot water faucet and read temperature to ensure correct setting.

Save money and prevent scalding when hot water heater is set at the proper temperature. Just place thermometer under the hot water faucet and read temperature to ensure correct setting.

3. Extech PH100 Waterproof ExStik pH Meter

The PH100 waterproof ExStik® pH meter provides fast and easy on-the-spot pH measurements. The flat surface electrode measures pH in liquids, semi-solids, and solids. No more electrode breakage or clogged junctions. The renew indicator tells you when it's time to replace your electrode. The cal alert ensures consistently accurate readings by telling you when you need to recalibrate. A memory feature records and recalls 15 sequentially tagged readings, so you will know how your readings have changed over time. The LCD readout displays pH, temperature and an analog bargraph that shows trends in acidity or alkalinity and indicates when the reading is stable. 1, 2 or 3 point calibration automatically recognizes buffer solutions. Other features include automatic temperature compensation, auto power off, low battery indicator and data hold.

Built-in smart chip offers advanced functions and features to a stick style pH meter not found anywhere else Renew feature that tells you when it’s time to replace your pH electrode Cal feature that tells you when it’s time to recalibrate your meter

4. pH Low Range 6.0-7.6 for Freshwater, 225-Tests

pH Low Range 6.0-7.6 for Freshwater, 225-Tests Suitable for freshwater aquariums to establish the right pH range for your fish (6.0-7.6) | Monitors ammonia toxicity level | Best used in aquariums containing most common tropical fish, such as Tetras, Discus, | Tanks pH levels should be monitored regularly as they have a direct effect on the well-being and health of fish | Easy to follow directions; Contains 225 Tests The Nutrafin pH Low Range Freshwater Aquarium Test Kit offers a full complement of test equipment: test pipette; glass test tube and cap, lab base, instruction booklet. The test is essential to be able to establish correct pH range(6.0-7.6) required by fish and plants. The pH value is directly implicated in ammonia toxicity.

pH Testing Kits High Range Test measures pH levels in fresh and saltwater aquariums containing fish that prefer alkaline conditions, such as African Cichlids or marine fish. pH should be monitored regularly as it can directly affect the well-being of fish. Wide Range Test measures the general range of pH in fresh or salt water aquariums. Most fish species require specific levels of pH to survive. By determining whether your aquarium water is acidic or alkaline, you can create a natural habitat for your fish. This is an aftermarket filter.

5. pH Test High Range (7.4-8.6) for Fresh and Saltwater - 125 tests

pH Test High Range (7.4-8.6) for Fresh and Saltwater - 125 tests

This High Range ph Test Kit measures pH levels in fresh and saltwater aquariums containing fish that prefer alkaline conditions, such as African Cichlids or marine fish. pH should be monitored regularly as it can directly affect the well-being of fish. Tests for pH within the range of 7.4-8.6.

6. Ph Wide Range Test-Fresh/Salt.

Ph Wide Range Test-Fresh/Salt.

Ph Wide Range Test-Fresh/Salt., by Nutrafin

7. Quick Dip 5-in-1 Test Strips, Pack of 25

Test your fish's water conditions quickly and with accuracy

Contains 25 Test Strips

8. Quick Dip 5-in-1 & Ammonia Test Strips, Pack of 25 each

Two Quick Dip tests for all six water quality measures in one kit

Contains 25 5-N-1 Tests & 25 Ammonia Test Strips

9. HANNA Instruments HI98311 DiST5 EC-TDS-Temperature Tester

short description is not available

Waterproof and it floats!- High accuracy- Automatic calibration and temperature compensation- HOLD function- BEPS (Battery Error Prevention System)- When the original DiST (Dissolved Solids Tester) was first introduce, conductivity and total dissolved solids measurements became easy and affordable- The DiST's ease of us, in combination with its affordability made it the standard in EC and TDS measurement- HANNA continues the standard in EC and TDS testing with the DiST5- This tester includes features such as: a replaceable graphite electrod, adjustable TDS rati, C or F measuremen, Automatic Temperature Compensation (ATC) with adjustable , battery level indicato, stability indicato, automatic shut-off and automatic calibration- The graphite conductivity electrode provides greater accuracy because it resists contamination by salt deposits in the sample- All of these features are packed in a floatin, waterproof casing- This 3-in-1 tester is unmatched in EC/TDS/ temperature measurements- Order Information:- HI 98311 (DiST 5) is supplied with HI 73311 EC/TDS prob, HI 73128 probe removal too, batteries and instructions- Specfications: Range EC 0 to 3999- TDS 0 to 2000 ppm- Temperature 0-0 to 60-0C / 32 to 140-0F- Resolution EC 1- TDS 1 ppm- Temperature 0-1C / 0-1F- Accuracy EC 2% F-S- TDS 2% F-S- Temperature 0-5C / 1F- Calibration automati, one point at 1413 or 1382 mg/L (ppm)- TDS Conversion Factor adjustable from 0-45 to 1-00- Temperature Compensation automati, with adjustable from 0-0 to 2-4% / C- Environment 0 to 50C (32 to 122F); RH max 100%- Battery Type / Life 1-5V (4) / approximately 100 hours of continuous us, auto-off after 8 minutes of non-use- Length: 8-4- Height: 1-3- Width: 2-7 SKU: HNNI010

10. Datacolor PrintFIX PRO PFP100 Color Calibrator

Datacolor PrintFIX PRO PFP100 Color Calibrator

Datacolor PrintFIX PRO PFP100 Color Calibrator Datacolor PrintFIX PRO PFP100 Color Calibrator