The YG-400 4-in-1 Water Quality Meter is a professional handheld device designed for comprehensive water testing. It combines four essential functions—pH, ORP (Oxidation Reduction Potential), Hydrogen (H₂), and Temperature measurement—into one convenient and easy-to-use instrument. Ideal for both professional and personal use, the YG-400 ensures accurate and reliable water quality results in seconds.

• 4-in-1 Multi-Functionality: Simultaneously measures pH, ORP, Hydrogen (H₂), and Temperature.
• Wide Measurement Range:
  • pH: 0.00-14.00
  • ORP: ±1200mV
  • H₂: 0-2400ppb (0.001-2.400ppm)
  • Temperature: 0.0-60.0°C (32.0-140°F)
• High Precision & Fast Response: Ensures accurate readings with quick stabilization time.
• User-Friendly Design: Large backlit LCD display, easy-to-navigate buttons, and a compact, portable build.
• Automatic Temperature Compensation (ATC): Ensures accuracy even when water temperature varies.
• Data Hold Function: Allows you to freeze the current reading for convenient viewing and recording.
• Easy Calibration: Simple one-touch calibration for precise pH measurement.

• Power Supply: 2 x AAA batteries (not included)
• Display: Large backlit LCD
• Calibration: Manual and automatic options

• Drinking water testing
• Swimming pools and spas
• Hydroponics and aquaculture
• Laboratory research
• Industrial water treatment
• Environmental monitoring

• All-in-One Solution: Replace multiple devices with one compact meter.
• Professional Accuracy: Trusted by industry experts for high-precision water analysis.
• Portable and Durable: Perfect for both fieldwork and indoor use.
• Easy Operation: Suitable for both beginners and professionals.

• 1 x YG-400 4-in-1 Water Quality Meter
• 1 x Protective cap
• 1 x User manual