• TB400
  • Manufacturer has 50 in stock
    This stock is typically available to ship in 3 - 5 working days.



  • Range: (NTU) 0.00 to 50.00 NTU, 50 to 1000 NTU
  • Resolution: 0.01 NTU
  • Accuracy: ±5% FS or ±0.5 NTU
  • Microprocessor-based circuitry
  • Requires only a 10mL sample size
  • 2-point calibration
  • Splash-proof front panel
  • Battery operated for field and on-site testing
  • Data Hold and Min/Max record/recall

What's in the Box

  • Extech TB400 Turbidity Meter
  • 0 NTU standard solution test bottle
  • 100 NTU standard solution test bottle
  • cleaning solution (distilled water)
  • Two test bottles and covers
  • Cleaning cloth
  • Six AAA batteries
  • Hard carrying case


The Extech TB400 Turbidity Meter comes complete with all the accessories to conveniently test the turbidity of municipal water, food and beverage water, and other aqueous solutions where fluid clarity is important. Portable design allows you to take measurement on-site instead of bringing solution back to the lab. Measures up to 1000 NTU (Nephelometric Turbidity Unit) with 0.01 NTU resolution.