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Your Source for Process Measurement & Control

Benchtop Turbidity Meter  - Discontinued


 | TRH444

£710.00 TRH444

  • Nephelometric Principle
  • Self-Guided Menu
  • Automatic Check and Calibration
  • Supplied with Stabilized Formazine Solution
  • Automatic Monitoring of Battery Charge
  • 99 Reading Points Memorized
  • RS232 Output for PC or Printer
  • NEMA 4 (IP67) Enclosure
  • Shock Resistant Carrying Case


The TRB-800 model has been discontinued. Please see the TRH-2020 Series as a possible alternative or contact our Flow Engineering Department.

The TRH444 is a compact turbidity analysis instrument designed for precision measurement of turbidity. The meter is equipped with an advanced microprocessor that results in long-term stability over a wide range of operational conditions. With its low level precision and accuracy, the TRH444 meets "GLP" standards for water and wastewater analysis. The TRH444 can be used to detect turbidity in three selectable ranges (0.01 to 10, 0.1 to 100 and 1 to 1000 NTU units) for turbidity. Other features on this all-in-one meter include automatic range selection, signal averaging, data logging up to 99 readings, RS232 interface port (for PC or printer connection) and language selection (English, Spanish or Portuguese). With it’s self guided programming menu the TRH444 is an ideal choice for regulatory monitoring, process water testing, and environmental water analysis in the field or laboratory.

Display: Alphanumeric 2 lines x 16 characters
Turbidity Range:
   0 to 1000 NTU (automatically)
    0.01 to 10.00 NTU (selectable range 1)
    0.01 to 100 NTU (selectable range 2)
   0.01 to 1000 NTU (selectable range 3)
Resolution: 0.01/0.1/1
Relative Precision: 0.01% (full scale)
Calibration Parameters: Automatic/manual
Light Source: LED 890 nm (NIR)
Detector: Photocell
Case Protection: NEMA 4 (IP67)
Vial (Ø x H): 24.5 x 60 mm (0.96 x 2.4")
Minimum Sample Volume: 20 mL
Power: Battery 9 Vdc (included)
Battery Life: 60 hours
Dimensions: 103 x 217 x 81 mm (4.1 x 8.5 x 3.2")
Weight: 569 g (20 oz)
All amounts shown in EUR, GBP, or USD
Note: Comes with 9 Vdc battery, calibration solutions, carrying case and operator’s manual.
Ordering Example: (1) CDH-30PW Plug in power supply, 110/220 Vac 50/60Hz, £44.50  plus (1) TRH444 Bench top turbidity meter, 0 to 1000 NTU, £710.00, £44.50 + 710.00 = £754.50