Portable Turbidity Meter LB-21PTM provides dual-range measurement of 0 to 20 NTU and 0 to 1000 NTU, ensuring accurate turbidity analysis. It operates within a temperature range of 5 to 40°C for stable performance. It features a high-precision optical path structure and an acrylic protection panel for enhanced durability. Our meter includes dual light detection and a full-color OLED display for clear, real-time readings.
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| Turbidity Range | 0 to 20 NTU 0 to 1000 NTU |
| Operating Temperature Range | 5 to 40℃ |
| Storage Temperature Range | -10 to 55℃ |
| Humidity Range | 0 to 80% RH |
| Indication Error | ±0.1 NTU or ±5% NTU (0 to 20 NTU Turbidity) ±0.3 NTU or ±8% NTU (0 to 1000 NTU Turbidity) |
| Repeatability | ±0.1 NTU at <10 NTU ≤±1% at ≥10 NTU (0 to 20 NTU Turbidity) ≤±0.1 NTU at <10 NTU ≤±1% at ≥10 NTU (0 to 1000 NTU Turbidity) |
| Zero Drift | ≤ ± 0.1 NTU |
| Calibration | 4-point calibration |
| IP Grade | IP65 |
| Power Supply | Lithium battery |
| Dimension | 170 × 72 × 44 mm |
| Weight | 290 g |
Features
· Built-in lens and filter system
· High-precision optical path structure
· IP65 waterproof USB interface
· USB charging with lithium battery support
· 5 touch-sensitive buttons
· Acrylic protection panel for durability
Applications
Portable Turbidity Meter LB-21PTM is widely used in water treatment plants, environmental monitoring, industrial wastewater analysis, and quality control labs. It is ideal for measuring turbidity in drinking water, surface water, and process water during on-site testing.
| Measurement range | 0 to 100 100 to 500 |
| Calibration point | 6 |
| Minimum value | 0.01 0.1 |
| Repeatability | ≤ 0.5 % |
| Measurement range | 0 ~ 100 100 ~ 400 |
| Calibration point | 5 |
| Minimum value | 0.01 0.1 |
| Repeatability | ≤ 0.5 % |
| Model No | LB-20PTM |
| Measuring Range | 0 to 1000 NTU (Turbidity); 0 to 1000 mg/L (Total Suspended Solids) |
| Indication Error | ±0.3 NTU or ±8 % (Turbidity); ±0.3 mg/L or ±8 % (Total Suspended Solids) |
| Repeatability | <10 NTU: ≤±0.1 NTU; >10 NTU: ≤±1 % (Turbidity); <10 mg/L: ≤±0.1 mg/L; >10 mg/L: ≤±1 % (Total Suspended Solids) |
| Measurement range | 0 ~ 100 0 ~ 200 |
| Calibration point | 4 |
| Minimum value | 0.01 0.1 |
| Repeatability | ≤ 0.5 % |
| Measurement range | 0 ~ 100 100 ~ 1000 |
| Calibration point | 7 |
| Minimum value | 0.01 0.1 |
| Repeatability | ≤ 0.5 % |
| Measurement range | 0 ~ 20 0 ~ 200 |
| Minimum value | 0.01 0.1 |
| Repeatability | ≤ 1 % |
| Error | ± 8 % ( ± 2.5 % F.S ) |
| Measurement range | 0 ~ 20 |
| Minimum value | 0.01 |
| Repeatability | ≤ 1 % |
| Error | ± 8 % ( ± 2.5 % F.S ) |
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| Measurement Range | 0 to 1100 NTU 0 to 275 EBC 0 to 9999 ASBC |
| Resolution | 0.01 (0 to 99 NTU) 0.1 (100 to 999 NTU) 1 (1000 to 1100 NTU) |
| Accuracy | ± 2% of reading (0 to 500 NTU) ± 3% of reading (501 to 1100 NTU) |
| Measurement Principal | ISO 7027 nephelometric method (90°) |
| Measurement range | 0 ~ 1000 |
| Calibration point | 7 |
| Minimum value | 0.1 |
| Repeatability | ≤ 1 % |
| Measurement range | 0 ~ 200 |
| Calibration point | 2 |
| Minimum value | 0.1 |
| Repeatability | ≤ 1 % |
| Measurement range | 0 ~ 100 100 ~ 800 |
| Calibration point | 6 |
| Minimum value | 0.01 0.1 |
| Repeatability | ≤ 0.5 % |
Address: Labotronics Scientific. 1007 N Orange St.,
Wilmington, DE 19801, USA
Mail: info@labotronics.eu
WhatsApp: +1 579 401 0534
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