VTSYIQI Portable pH Conductivity Dissolved Oxygen Meter With Accuracy ±0.002 pH Automatic temperature compensation USB For measuring pH oxidation reduction potential ion concentration conductivity salinity resistivity and dissolved oxygen

Specifications Multiparameter water quality meter contains 8 measurement modes, the meter is suitable for measuring the pH,temp , conductivity, TDS, salinity, resistivity and DO. Automatic temperature compensation ensures accurate readings over the entire range. Auto-Read function senses and locks the measurement endpoint. Calibration due alarm prompts user to calibrate the meter regularly Calibration report provides the details of electrode performance. High-performance multiparameter water quality meter contains the 8 measurement modes, the meter is suitable for measuring the pH, conductivity, TDS, salinity, resistivity and dissolved oxygen. (If you want to measure ORP, ion concentration, you need to purchase additional electrodes) pH Mode: • Portable multiparameter water quality meter is equipped with a backlit LCD display. • 1 to 5 points calibration with automatic recognition for USA, NIST and DIN buffers. • Automatic electrode diagnosis shows the pH slope and offset. ORP Mode: (ORP Probe is optional) • 1 point offset calibration allows adjusting the displayed value to a known standard. • Relative and absolute millivolt modes ensure the reliable ORP measurements. Ion Concentration Mode(Ion Probe is optional) • 2 to 5 points calibration, including the 8 concentration points can be selected. • Direct ion concentration readout simplifies the measurement process. • Automatic electrode diagnosis shows the calibration points and slopes. • Selectable concentration units (ppm, mg/L, mol/L, mmol/L) and ionic valency. Conductivity/TDS/Salinity/Resistivity Modes: • 1 to 5 points calibration with automatic recognition for conductivity standards. • Selectable cell constant (K=0.1/1/10), reference temperature (20/25°C), TDS factor, linear and pure water compensations, seawater and practical salinity measurement modes. Dissolved Oxygen Mode: • 1 or 2 points calibration using the air-saturated water or zero oxygen solution. • Salinity and barometric pressure compensations eliminate the measurement error. Specifications pH Range: -2.000 to 20.000pH Resolution: 0.001, 0.01, 0.1pH, selectable Accuracy: ±0.002pH Calibration Points: 1 to 5 points PH Buffer Options: USA, NIST, DIN, 2 custom buffers mV Range: ±1999.9mV Resolution: 0.1, 1mV, selectable Accuracy: ±0.2mV Calibration Points: 1 point Measurement Modes: Relative or absolute mV Conductivity Range: 0.01 to 20.00, 200.0, 2000µS/cm, 20.00, 200.0mS/cm Resolution: 0.001, 0.01, 0.1, 1 Accuracy: ±0.5% F.S. Calibration Points: 1 to 5 points Calibration Solutions: 10µS, 84µS, 1413µS, 12.88mS, 111.8mS Temperature Coefficient: Linear (0.0 to 10.0%/°C), pure water Reference Temperature: 20/25°C Cell Constant: K=0.1, 1, 10 or custom TDS Range: 0.00 to 10.00, 100.0, 1000ppm, 10.00, 200.0ppt Resolution: 0.01, 0.1, 1 Accuracy: ±1% F.S. TDS Factor: 0.1 to 1.0 (default 0.5) Salinity Range: 0.00 to 80.00ppt, 0.00 to 42.00psu Resolution: 0.01 Accuracy: ±1% F.S. Resistivity Range: 0.00 to 20.00MΩ Resolution: 0.01 Accuracy: ±1% F.S. Dissolved Oxygen DO Range: 0.00 to 20.00mg/L Resolution: 0.01, 0.1mg/L, selectable Accuracy: ±0.2mg/L % Saturation of Oxygen: 0.0 to 200.0% Resolution: 0.1, 1%, selectable Accuracy: ±2.0% Calibration Points: 1 or 2 points Pressure Correction: 60.0 to 112.5kPa/450 to 850mmHg, manual Salinity Correction: 0.0 to 50.0g/L, manual Temperature Range: 0 to 105°C/32 to 221°F Resolution: 0.1°C/0.1°F Accuracy: ±0.5°C/±0.9°F Offset Calibration: 1 point Calibration Range: Reading ±10°C General Specifications: Temperature Compensation: 0 to 100°C/32 to 212°F, manual or automatic Stability Criteria: Low or high Calibration Due Alarm: 1 to 31 days or off Auto-Power Off: 10, 20 or 30 minutes after last key pressed Memory: Stores up to 500 data sets Output: USB communication interface Connector: BNC, 6-pin nimi-DIN, 3.5mm jack socket Display: Custom LCD (80×60mm) Power: 3×1.5V AA batteries or DC5V power adapter Battery Life: Approximately 150 hours (turn off the backlight) Dimensions: 170(L)×85(W)×30(H)mm Weight: 300g Packing E201-BNC pH electrode CON-1 conductivity electrode DO100 dissolved oxygen electrode TP-10K temperature probe DO membrane cap Carrying case