NANBEI INSTRUMENTS Digital 5 in 1 pH DO EC TDS Temp meter Multi-parameter Water quality analyzer

- GENERAL FEATURES
- LCD display screen, 3.5 inches.
- Multi-reading feature allows auto-read, timed-read and continuous-read.
- Automatic/Manual temperature compensation ensures accurate results.
- Auto-hold feature senses and locks the measurement endpoint.
- Data capacity of up to 500 sets for each parameter (GLP-compliant).
- Support for USB communication.
- Auto-power off feature effectively extends the battery service life.
- Reset feature automatically resumes all settings back to factory default options.
- IP65 waterproof.
pH
- 1-5 points calibration with Standard Recognition.
- Selectable pH buffer groups, including NIST, DIN, GB.
- Automatic electrode diagnosis with pH slope and offset display.
Ion
- 1-5 points calibration.
- Selectable measurement unit, including μg/L, mg/L, g/L, mmol/L, pX, ppm, etc.
- Measurement modes are supported, including Direct Reading mode, Standard Addition mode, Sample Addition mode and GRAN mode.
- Over 10 methods are built-in, including F-, Cl-, Br-, I-, NO3-, BF4-, NH4+, K+, Na+, Ca2+, Cu2+, Pb2+, Ag+ and etc., user-defined method is supported.
Conductivity
- 1-3 points calibration with Standard Recognition.
- Settable parameters, including cell constant, temperature compensation coefficient, and TDS factor.
- Temperature compensation type (none, linear, pure water).
DO
- Support for air-saturated water or zero oxygen calibration.
- Auto barometric pressure compensation
- Manual Salinity Factor Correction
Selectable pressure unit, including kPa, mbar, Torr, Atm.
| Model | NB-M310T | |
| Parameters | pH/EC/ISE/DO/Temp. (mV/pX/Resistivity/TDS/Sal./DO Saturation) | |
| pH | Range | -2.00 to 20.00pH |
| Resolution | 0.1, 0.01 pH | |
| Accuracy | ±0.01 pH | |
| Calibration Points | Up to 5 | |
| Standard Customization | Yes | |
| Calibration Reminder | Yes | |
| Standard Recognition | NIST, GB and DIN buffers | |
| Slope Limit | Yes | |
| mV | Range | -2000.0 to 2000.0 mV |
| Resolution | 0.1 mV | |
| Accuracy | ±0.3 mV or ±0.1% | |
| pX | Range | -2.00 to 20.00 pX |
| Resolution | 0.1, 0.01 pX | |
| Accuracy | ±0.01 pX(±0.01 pX) | |
| Calibration Points | Up to 5 | |
| ISE | Range | 1E-9 to 9.999E9 |
| Units | mol/L, mmol/L, g/L, mg/L, μg/L | |
| Resolution | Up to 4 significant digits | |
| Accuracy | ±0.5% | |
| Calibration Points | Up to 5 | |
| Conductivity | Range | 0.000 μS/cm to 1000 mS/cm |
| Resolution | 0.001 μS/cm minimum, various with range selection | |
| Accuracy | ±1.0% FS | |
| Reference Temperature | 20, 25 ºC | |
| Calibration Points | Up to 3 | |
| Standard Recognition | 84μS/cm, 1413μS/cm, 12.88mS/cm | |
| Resistivity | Range | 5.00 Ω ·cm~20.00 MΩ ·cm |
| Resolution | 0.01Ω ·cm minimum, | |
| Accuracy | ±1.0% FS | |
| TDS | Range | 0.00mg/L~300g/L |
| Resolution | 0.01mg/L minimum, 3 significant digits | |
| Accuracy | ±1.0% | |
| Salinity | Range | (0.00~8.00)% |
| Resolution | 0.01% | |
| Accuracy | ±0.2% | |
| Dissolved Oxygen Concentration | Sensor Type | 0.00 to 50.00 mg/L |
| Range | 0.00 to 50.00 mg/L | |
| Resolution | 0.01mg/L | |
| Accuracy | ±0.1mg/L | |
| Calibration Points | Air-saturated water or zero point | |
| Barometric Compensation | Yes | |
| Manual Salinity Factor Correction | Yes | |
| Saturation | Range | (0.0 to 300.0)% |
| Resolution | 0.10% | |
| Accuracy | ±2.0% | |
| Temperature | Range | -5 to 110 ºC, 23.0 to 230 ºF |
| Unit | ºC, ºF | |
| Resolution | 0.1 | |
| Relative Accuracy | ±0.2 | |
| Measurement | Reading Mode | Auto-Read (Fast, Medium, Slow), Timed, Continuous |
| Reading Prompts | Reading, Stable, Locked | |
| Temp. Compensation | ATC, MTC | |
| Data management | Data Storage | 1000 Groups |
| GLP Features | Yes | |
| Inputs | pH Electrode | BNC(Q9) |
| DO with Temp. Probe | 4-pin aviation connector | |
| Conductivity with Temp. Probe | 5-pin aviation connector | |
| Outputs | USB | PC, printer |
| Display options | Backlight | Yes |
| Auto Shutdown | 300, 600, 1200, 1800, 3600sec., off | |
| IP Rating | IP65 | |
| Date and Time | Yes | |
| General | Power | Rechargeable Lithium battery, AC Adapter, 100-240V AC input, DC5V output |
| Dimensions | 90 x 255 x 40 mm | |
| Weight | 500g (1.1 lb) | |





FAQ:
Q1: Why Choose NANBEI ?
(1).Professional manufacturer with more than 13 years experience
(2).Exported to more than 97% Countries
(3).Turnkey Solution is no problem
Q2:OEM,ODM acceptable or not?
Absolutely Yes
Q3:What's kind of Payment terms for customer choosing?
T/T ,Western Union, Money Gram , Credit Card, Paypal , L/C ...
Q4:Can we visit your factory online?
Absolutely no problem
Q5:Can online video inspection before shipment?
Absolutely no problem
Q6: what's the MOQ ? Sample order is OK?
MOQ:1 set, sample order is no problem
Q7:What's kind of shipment for customer choosing?
Usually ship by sea, by air, by international express .
We can also provide reasonable solutions according to your transportation requirements
Q8:How to ensure product quality and after-sales service?
We have CE, ISO quality certificate, and SGS authentication.
After-sale service:
- Warranty : 1 year
- We supply free part for quality problem in warranty
- Long life technical support and service







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