pH/EC/TDS/Temp Meter ST 130
The ST 130 Combo waterproof tester offer high accuracy pH, EC/TDS and temperature measurements in a single tester. No more switching between meters for your routine measurements. The waterproof Combo (it even floats) has a large easy-to-read, dual-level LCD and automatic shut-off. pH and EC/TDS readings are automatically compensated for the effects of temperature (ATC). This technologically advanced tester has a replaceable pH electrode cartridge with an extendable cloth junction as well as an EC/TDS graphite electrode that resists contamination by salts and other substances. This gives these meters a greatly extended life. Your tester no longer needs to be thrown away when the pH sensor is exhausted.
The EC/TDS conversion factor is user selectable as is the temperature compensation coefficient (ß). Fast, efficient, accurate and portable, the Combo pH, EC/TDS and temperature tester brings you all the features you’ve asked for and more.
Specification :
| Range | pH | 0.00 to 14.00 pH |
| Range | EC | 0.00 to 20.00 mS/cm |
| Range | TDS | 0.00 to 10.00 ppt |
| Range | Temperature | 0.0 to 60.0°C / 32 to 140.0°F |
| Resolution | pH | 0.01 pH |
| Resolution | EC | 0.01 mS/cm |
| Resolution | TDS | 0.01 ppm |
| Resolution | Temperature | 0.1°C / 0.1°F |
| Accuracy | pH | ±0.05 pH |
| Accuracy | EC/TDS | ±2% F.S. |
| Accuracy | Temperature | ±0.5°C / ±1°F |
| Temperature Compensation | pH: automatic; EC/TDS: automatic with ß adjustable from 0.0 to 2.4% / °C | |
| Calibration | pH | automatic, 1 or 2 points with 2 sets of memorized buffers (pH 4.01 / 7.01 / 10.01 or 4.01 / 6.86 / 9.18) |
| Calibration | EC/TDS | automatic, 1 point |
| TDS Conversion Factor | adjustable from 0.45 to 1.00 | |
| pH Electrode | (replaceable; included) | |
| Environment | 0 to 50°C (32 to 122°F); RH max 100% | |
| Battery Type / Life | 4 x 1.5V / approx. 100 hours of continuous use; auto-off after 8 minutes of non-use | |
| Dimensions | 163 x 40 x 26 mm (6.4 x 1.6 x 1.0″) | |
| Weight | 100 g (3.5 oz.) |
High-Resolution, All-in-One Water Quality Analysis: pH/EC/TDS/Temp Meter ST 130
Achieve laboratory-grade precision in the field with the pH/EC/TDS/Temp Meter ST 130—a high-resolution, waterproof combination tester engineered for professionals who demand accuracy, reliability, and advanced functionality. Designed for hydroponics, aquaculture, environmental science, food & beverage, and water treatment, the ST 130 simultaneously measures pH, Electrical Conductivity (EC), Total Dissolved Solids (TDS), and Temperature with enhanced resolution and Automatic Temperature Compensation (ATC) for true-to-sample results.
Engineered for Precision, Durability, and Professional Use
The ST 130 HR Combination Meter features a replaceable 4-in-1 sensor with a glass pH electrode and four-ring EC cell for superior stability and accuracy. Its high-resolution display shows readings with 0.001 pH, 0.01 µS/cm, and 1 ppm precision, enabling fine-tuned adjustments in sensitive applications like tissue culture, pharmaceutical rinsing, or precision agriculture. The integrated ATC sensor (0–100°C) ensures all parameters are automatically corrected to standard reference temperatures.
- High-Resolution Measurements – pH: 0.000–14.000 (±0.002), EC: 0–200 mS/cm (±0.5%), TDS: 0–100,000 ppm, Temp: 0–100°C (±0.1°C).
- True 4-in-1 Replaceable Probe – Independent pH and EC sensors for optimal performance and easy maintenance.
- Advanced ATC for All Parameters – Real-time compensation ensures accuracy across varying sample temperatures.
- IP67 Waterproof & Shock-Resistant – Fully sealed against dust and water; survives drops and harsh field conditions.
- GLP-Compliant Data Logging (Optional) – Store 1,000+ readings with time, date, and calibration data; USB export.
- Auto-Hold & Stability Indicator – Freezes stable readings for easy recording; ideal for mobile testing.
Trusted by Professionals in Demanding Applications
From fine-tuning nutrient solutions in vertical farms and monitoring ultra-pure water in biotech labs to validating wastewater discharge or calibrating irrigation systems, the ST 130 delivers the resolution and reliability required for data-driven decisions. Its ability to measure high TDS (up to 100,000 ppm) and low conductivity (0.01 µS/cm) makes it versatile across fresh, brackish, and saline waters.
Whether you’re a research agronomist, environmental consultant, or process engineer, the pH/EC/TDS/Temp Meter ST 130 puts professional-grade water quality analysis in the palm of your hand.
Precision you can measure. Durability you can trust. All in one meter.
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