86311 Multi-Parameter Water Quality Tester
The 86311 is a multi-parameter water quality tester designed for household drinking water including tap water, purified water, and groundwater. It is also suitable for seawater and aquaculture salinity testing.
The device uses UV absorbance to measure COD, TOC and UV275, and uses electrical conductivity to calculate TDS, electrical conductivity (EC), salinity (SAL), general hardness (GH) and specific gravity (S.G.). The 86311 provides intelligent water-quality scoring with backlight colors indicating four grades: Excellent, Good, Fair, and Poor. It features automatic temperature compensation to ensure consistent repeatability and accuracy across different environments.
Key Features
- Fast testing for household drinking water: Simple operation—just press once to quickly determine whether water meets national drinking-water safety standards.
- Smart scoring system for clear water-quality assessment: Display automatically changes backlight color according to water-quality rating: Excellent, Good, Average, or Poor.
- Salinity, General Hardness & Specific Gravity measurement: Accurately calculates salinity, general hardness, and specific gravity through electrical conductivity measurement.
- Simultaneous measurement of 9 water-quality parameters: Measures SAL, GH, S.G., COD, TOC, TDS, UV275, EC, and Temperature for comprehensive water evaluation.
- Multi-parameter scoring to avoid misjudgment: Evaluates multiple parameters for more accurate and comprehensive rating of mineral and drinking water.
- Pen-style design, compact and portable: Small, lightweight design for easy carrying and on-the-go use.
- Temperature compensation for accurate, stable results: Automatic temperature compensation ensures repeatability and accuracy with long calibration intervals.
- Indirect indication of residual chlorine: UV275 readings can indirectly reflect residual chlorine levels.
Technical Specifications
| Parameter |
Value |
| Measurement Object |
Tap water, purified water, bottled water, ground water, surface water (non-sewage) seawater and aquaculture |
| Measurement Parameters |
COD, TOC, UV275, TDS, EC, SAL, GH, S.G., Temperature |
| Measurement Range |
COD (0-100mg/L), TOC (0-100mg/L), UV275 (0-1.0au/cm), TDS (0-2000ppm), EC (0-4000us/cm), SAL (0-26%), GH (0-1000ppm), S.G. (0.9800-1.2000), T (0-50℃) |
| Resolution |
COD (0.01mg/L), TOC (0.01mg/L), UV275 (0.001au/cm), TDS (1ppm), EC (1us/cm), SAL (0.01%), GH (1ppm), S.G. (0.0001), T (0.1℃) |
| Accuracy |
COD: 0-5mg/L: ±0.5mg/L; 5-100mg/L: ±10%H
TOC: 0-5mg/L: ±0.5mg/L; 5-100mg/L: ±10%H
UV275: 0-0.1au/cm: ±0.01au/cm; 0.1-1.0au/cm: ±10%H
TDS: 0-100ppm: ±5ppm; 100-2000ppm: ±5%H
EC: 0-200us/cm: ±10us/cm; 200-4000us/cm: ±5%H
SAL: 0-5%: ±0.25%; 5-15%: ±5%H; 15-26%: ±10%H
T: ±2℃ |
| Display |
240*135 1.14 inch TFT color screen |
| Power Supply |
2 AAA alkaline dry batteries |
| Size |
157*37*14mm |
| Weight |
About 68g |
| Working Temperature Range |
0~50℃ |
| Storage Temperature Range |
-10~60℃, 0~85%RH (no condensation) |
| Supply Voltage |
DC 3V |
| Operating Current |
20mA |
| Operating Power Consumption |
60mW |
Qualifications and Standards
86311 Water Quality Tester meets the following standards:
- GB5749-2022 Sanitary Standard for Drinking Water
- GBT5750-2023 Standard Test Methods for Drinking Water
- JJG 821-2005 Total organic carbon analyzer test procedure
- JJG 376-2007 Conductivity meter testing procedures
- JJG 761-2016 Verification Regulation of Electrode Salinometer
Package Contents
| No. |
Product Name |
Quantity |
Unit |
| 1 |
Water Quality Tester |
1 |
set |
| 2 |
User Manual |
1 |
pcs |