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Portable Turbidity meter 25-PTM105 measures water clarity using 90° scattered light principle with infrared-emitting diode at 850 nm. It features silicon photodiode detector, dual measuring ranges of 0–100 NTU and 100–1000 NTU, minimum readout of 0.01 NTU, and ±6% error value (±2% F.S). Powered by AC 220V/50Hz or five AA alkaline batteries, it weighs 1.5 kg with dimensions of 370 × 260 × 15 mm. Includes USB communication interface, memory for up to 20 data sets, calibration at seven points, zero drift of ±0.5% F.S., and operates within 5–4°C temperature range. Suitable for quality control in drinking water treatment, environmental monitoring, food & beverage production, pharmaceutical processes and industrial wastewater analysis requiring precise turbidity assessment in field or laboratory settings.
$1,997.00 $ 1664
| Measuring range (NTU) | 0 to 100, 100 to 1000 |
| Minimum readout value (NTU) | 0.01, 0.1 |
| Calibration point | 7 |
| Sample volume | 5 to 10 ml |
| Principle method | 90° scattered light |
| Operating temperature | 5 to 40°C |
| Working temperature | 5 to 40°C |
| Light source | Infrared-emitting diode (850 nm λ) |
| Detector | Silicon photodiode |
| Error value | ± 6 % (± 2 % F.S) |
| Zero drift | ± 0.5 % F.S. |
| Reset functions | Yes |
| Memory | Stores up to 20 sets data |
| Output | USB communication interface |
| Power batteries | DC 1.5 V, 5 AA alkaline batteries |
| Power supply | AC 220 V, 50 Hz |
| Dimension | 370 × 260 × 150 mm |
| Weight | 1.5 kg |
Function Implementation Field water testing 0 to 100, 100 to 1000 NTU measures turbidity across low and high ranges Laboratory analysis Stores up to 20 sets data enables batch recording of results On-site measurements Weight: 1.5 kg supports handheld portability in remote locations Temperature-variable environments Working temperature: 5 to 40°C ensures operation in varying climates Low-light sample handling Minimum readout value (NTU): 0.01, 0.1 detects fine turbidity changes
| Accessory No. | Name | Quantity |
| 1 | Specimen bottle | 3 pcs |
| 2 | 400 NTU (Formazine) turbidity standard solution | 1 bottle |
| 3 | Power cable | 1 pc |
| 4 | Carrying box | 1 pc |
Lab Expo Turbidity Meter units are used for water clarity and suspended particle analysis in environmental, laboratory, and water treatment applications. The range includes benchtop and portable turbidity meter systems with measurement ranges up to 1000 NTU, minimum readout values down to 0.01 NTU, and multi-point calibration support for precise turbidity testing.
