



Ultimate Water Quality Tester | 7-in-1 Digital Meter with App Integration
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Effortless Water Quality Management with Our Ultimate Tester
Experience the ease of maintaining perfect water conditions with our innovative 7-in-1 digital water quality tester, designed for precise and rapid assessments of vital water parameters. Whether you're managing a swimming pool, saltwater aquarium, spa, or aquaculture setup, this device takes the hassle out of achieving ideal water balance.

Outstanding Features
- 7-in-1 Measurement Capabilities: Accurately gauges salinity, pH, ORP, EC, TDS, specific gravity, and temperature.
- Smartphone App Compatibility: Seamlessly connects with both iOS and Android devices, offering instant readings and historical data tracking.
- Illuminated LCD Screen: Ensures effortless reading in any light, enhancing usability.
- Automatic Temperature Adjustment: Guarantees reliable measurements regardless of water temperature fluctuations.
- Portable and Lightweight Design: Convenient for regular water quality checks, making it easy to take anywhere.

Detailed Specifications
- Measurement Capabilities: pH, ORP, EC, TDS, Salt Content, Specific Gravity, Temperature
- pH Range: 0.00–14.00 (±0.5 pH)
- Temperature Range: 31.2–140.0°F (±0.9°F)
- ORP Range: ±999 mV (±2 mV)
- Conductivity (EC): Up to 400.0 mS/cm (±2% F.E.)
- TDS Measurement: Up to 200.0 ppt (±2% F.E.)
- Salt Content: 0–10,000 ppm (±2% F.E.)
- Specific Gravity Range: 1.000–1.222
- Display Type: Digital LCD
- Power Source: 3 × 1.5V LR44 batteries
- Temperature Compensation Range: 32–140°F (0–60°C)
- Product Dimensions: 7.4 × 1.5 × 1.5 in
- Weight: 0.21 lb
Frequently asked questions
Quick answers about ordering from Couje. More detail on our full FAQ page.
How much does shipping cost, and how long does it take?
Shipping is free on every order — no minimum. Orders are typically delivered within 4–12 business days (processing included), and every order includes tracking. Full details are in our Shipping Policy.
What is your return policy?
You can return items within 30 days of delivery. Once your return is received and inspected, we process your refund to the original payment method. See our Return & Refund Policy for the full process.
How do I track my order?
As soon as your order ships, we email you a tracking number. You can follow your delivery at any time on our Track Your Order page.
How can I reach customer service?
Email us at support@couje.com or use our contact form. Our team is available Monday – Friday: 09:00 AM – 05:00 PM EST and replies within 24 hours. Saturday – Sunday: closed.
