Aqua Master S300 Pro3 – pH and Temperature Meter for Substrate (3d generation)
The Aqua Master S300 Pro3 is a precise and modern meter designed to measure pH and temperature in soil, coco, and other moist growing media. With its solid construction and high measurement accuracy, it allows easy monitoring of cultivation conditions and helps ensure optimal growth for your plants.
Equipped with a clear LCD display, Automatic Temperature Compensation (ATC), and two-point pH calibration (4.00 and 7.00), the S300 Pro3 provides fast, reliable, and consistent readings. Its IP65-rated waterproof housing protects the device from moisture, while the IP67-rated probe can safely be used directly in the substrate.
The meter features an auto shut-off function after 8 minutes of inactivity and a calibration reminder every 30 days, making it easy to maintain measurement accuracy. The replaceable electrode and AAA battery power supply make it a practical and cost-effective tool for both professional and hobby growers.
Key Features:
Measures pH (0.00–14.00) and temperature (0–50°C)
Automatic Temperature Compensation (ATC)
Two-point calibration (pH 4.00 and 7.00)
Replaceable electrode for easy maintenance
Waterproof design: IP65 (housing) / IP67 (probe)
Clear LCD display with HOLD function
Auto shut-off after 8 minutes of inactivity
Calibration reminder every 30 days
Power supply: 2 × AAA batteries
Technical Specifications:
| Parameter | Value |
|---|---|
| pH range | 0.00 – 14.00 pH |
| Temperature range | 0 – 50°C |
| pH accuracy | ±0.10 pH |
| Temperature accuracy | ±0.50°C |
| Calibration | Automatic, 2-point (4.00 and 7.00) |
| Temperature compensation | Automatic (ATC) |
| Waterproof rating | IP65 (meter) / IP67 (probe) |
| Power supply | 2 × AAA batteries |
| Auto power-off | After 8 minutes |
| Dimensions | 230 × 43 × 43 mm |
| Weight | 158 g |
The Aqua Master S300 Pro3 combines precision, simplicity, and durability in one device — the perfect choice for both professional cultivators and home growers who need accurate pH and temperature monitoring in their growing media.
