Four tests, one device
Measures pH, TDS, EC, and temperature in any water source, so you can monitor all key parameters without juggling multiple tools.
- Free shipping
- 14-day easy returns
- Secure checkout
- Quality guaranteed
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Why customers love it
Four essential water tests in one precise pen
This 4-in-1 digital meter accurately measures pH, TDS, EC, and temperature in any water source, making it an essential tool for maintaining optimal water conditions in aquariums, pools, hydroponics, and more.
- Combines four essential water quality measurements in one convenient, portable pen-style device
- High-precision sensors deliver accurate readings with a resolution of 0.01 pH
- Easy one-button operation for quick and effortless testing
- 3-point automatic pH calibration (6.86, 4.00, and 9.18) for reliable accuracy
- Backlit digital display ensures clear readings in any lighting condition
- Auto shut-off feature after 5 minutes of inactivity to conserve battery life
Why you'll love it
Accurate readings you can trust
High-precision sensors deliver accurate readings with a resolution of 0.01 pH, giving you confidence in every measurement.
Simple one-button operation
Easy one-button operation makes testing quick and effortless, so you can check water quality in seconds.
Clear display in any light
The backlit digital display ensures clear readings even in dim or bright conditions, so you never misread your results.
Specs
The details that matter
Built to last outdoors, season after season.
- Meter Type
- 4-in-1 Meter
- Measurements
- pH, TDS, EC, Temperature
- pH Resolution
- 0.01
- Calibration
- 3-point automatic (6.86, 4.00, 9.18)
- Auto Shut-off
- After 5 minutes
Our worry-free shopping promise
If your order arrives damaged, defective, or not as described, contact us within 14 days and we will make it right with a replacement or refund.
Frequently asked questions
Everything you might want to know before you order.
What does this 4-in-1 meter measure?
This meter measures pH, TDS, EC, and temperature in any water source, making it suitable for aquariums, pools, hydroponics, and more.
How accurate is the pH reading?
High-precision sensors deliver accurate readings with a resolution of 0.01 pH, so you can track even small changes in water quality.
How does calibration work?
The meter features 3-point automatic pH calibration at 6.86, 4.00, and 9.18, ensuring reliable accuracy across a wide range of water conditions.
Does the meter have a backlit display?
Yes, the backlit digital display ensures clear readings in any lighting condition, whether you are testing indoors or outdoors.
How does the auto shut-off feature help?
The meter automatically shuts off after 5 minutes of inactivity, which helps conserve battery life and ensures the device is ready when you need it.
Is it easy to operate?
Yes, the one-button operation makes testing quick and effortless, so you can get accurate results without complicated steps.
Shipping & returns
Shipping
- Delivers to United States (based on your selected country/region).
- Estimated delivery: 3–15 business days after dispatch.
- Shipping cost: Free.
Returns
You can request a return within 14 days after delivery. Standard returns have a €4.00 EUR (approximately $4.66 USD) flat-rate return shipping fee, deducted from your refund. Return shipping is free for items that arrived damaged, defective, or incorrect. Items should be unused and in original packaging where possible. Contact us before sending anything back.