VIVOSUN Digital pH Meter 0.01 Accuracy Pen Tester for Water Hydroponics
- ±0.01 pH accuracy, pen style
- Auto calibration and automatic temperature compensation
- Backlit LCD with memory
- Batteries included, 0.11 kg ABS body
Last refreshed Oct 3, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A digital pH pen for water in hydroponics, aquariums, pools and drinking water, with fine accuracy and a backlit display. The listing leaves out the measuring range and calibration solutions.
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ASIN: B01M5IASHDModel: 4316344538Category: pH Meters
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Overview
Testing a hydroponic reservoir, an aquarium or a pool starts with dipping this pen into the sample. A backlit LCD shows the reading, and automatic calibration and temperature compensation handle the corrections.
A small pen meter with a memory function, a backlit screen and batteries already supplied. It is listed as UL certified. Calibration solutions and measuring range are not described, so confirm them before relying on it.
Who it's for
Growers, fish keepers and pool owners who test water often and want a quick digital reading. Anyone after a lab-style kit with a stated range should look at a more fully specified meter.
Pros and cons
- Fine accuracy rating
- Backlit LCD display
- Calibration solutions unclear
- Measuring range missing
- Probe replacement not mentioned
Performance notes
Automatic temperature compensation corrects the reading as the water temperature changes, and auto calibration adjusts the meter against reference solutions. The backlit screen helps in dim grow rooms. Accuracy still depends on keeping the probe clean and recalibrating regularly.
Specifications
| Brand | VIVOSUN |
|---|---|
| Model | 4316344538 |
| Dimensions & fit | |
| Weight | 0.11 kg |
| Construction & materials | |
| Material Type | ABS |
| Included components | |
| Included Components | Batteries |
| Other details | |
| Accuracy | ±0.01 pH |
| Features | ATC, auto calibration, backlit LCD, memory, UL certified |
| Test Uses | Hydroponics, aquarium, pool, drinking water |
Closest rivals on specs
Bluelab pH Pen - ± 0.1 pH Accurate - Durable Double Junction Probe- Item Weight 0.24 vs 0.27 pounds (-11%)
Frequently asked questions
What water can the VIVOSUN pH meter test?
The listing names hydroponics, aquarium, pool and drinking water.
Does the VIVOSUN pH pen come with batteries?
Yes, batteries are listed as included.