Description
Two Pens, Every Water Reading You Need
The VIVOSUN pH and TDS Meter Combo pairs a digital pH pen with a 3-in-1 TDS, EC and temperature pen, so you can check both the acidity and the strength of a nutrient solution in a minute. Both pens use sensitive electrodes with automatic temperature compensation (ATC) for quick, repeatable readings in hydroponic reservoirs, RO water, aquariums, pools and drinking water.
Key Benefits
- pH pen: 0.00–14.00 pH with ±0.1 accuracy and one-touch automatic calibration
- 3-in-1 TDS/EC pen: reads TDS (ppm), EC (µS/cm) and temperature in °C or °F
- ATC on both pens keeps readings steady as the water temperature changes
- Hold button locks the reading so you can read it away from the tank
- Calibration buffer powders included for the pH pen
Feeding Blind Costs Crops
Mixing nutrients without measuring means guessing both how strong the feed is and whether plants can take it up. Too strong and roots burn; pH out of range and nutrients lock out even when they are in the tank. Checking EC/TDS and pH after every mix takes the guesswork out, and a TDS reading on tap or RO water tells you what you are starting with.
How to Use
- Calibrate the pH pen with the included buffer powder mixed in distilled water, using the CAL button
- Remove the caps and dip each pen into the solution up to the immersion line
- Read once the value settles; press MODE on the TDS pen to switch between ppm, µS/cm and °C/°F
- Rinse both electrodes in clean water after use and replace the caps
Technical Specifications
- pH range: 0.00–14.00, ±0.1 pH
- TDS range: 0–9999 ppm, 1 ppm resolution, ±5%
- EC range: 0–9999 µS/cm, 1 µS/cm resolution, ±5%
- Temperature: 0.1–80°C (32–176°F), 0.1° resolution
- Compensation: ATC on both pens
- TDS pen power: 1 × 3V CR2032 button cell
- In the box: pH pen, TDS/EC/temperature pen, pH buffer powders
