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Free US Shipping
Accurate water quality checks without guesswork or delays
Instant measurement of water purity and temperature — corrosion-resistant titanium probe, backlit color-coded display, and automatic power-saving functions

Why is this digital water testing device perfect for you?
✔ Four precise water quality measurements in a single device: The device measures TDS, conductivity, PPM, and temperature with 2 units accuracy, providing reliable and comprehensive water quality data quickly. This allows immediate assessment without needing multiple instruments.
✔ Durable and corrosion-resistant titanium alloy probe: Equipped with a titanium alloy probe, the device ensures long-term durability and resistance to corrosion, preventing wear and maintaining precision over years of use.
✔ Clear backlit display with automatic power management: Features a backlit display with color coding for easy reading in low light, along with automatic functions like a lock to prevent accidental operation and auto shut-off to save battery life.

Specifications
Measurement parameters: TDS, EC, PPM, temperature
Measurement accuracy: ±2 units
Probe material: Titanium alloy
Power supply: 3 V battery

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.
