Specifications
| Measurement parameter | pH, mV (ORP electrode optional), conductivity, resistivity, TDS, salinity, dissolved oxygen concentration, dissolved oxygen saturation, ℃ |
| pH range | （-2.000~20.000）pH |
| pH resolution | 0.1/0.01/0.001pH |
| pH Accuracy | +/- 0.002pH +/- 1 word |
| pH calibrating point | 1~ 5 point Automatic calibration |
| pH temperature automatic compensation | -10.0~135.0°C（14.0~275.0℉） |
| ORP range | -1999.9mV~+1999.9mV |
| ORP resolution | 0.1mV |
| ORP Accuracy | +/- 0.03% F. S +/- 1 word |
| Conductivity range | 0~2000.0mS/cm |
| Conductivity calibrating point | 1 point Automatic calibration |
| EC resolution | 0.001 |
| Conductivity automatic temperature compensation range | 0.0~50.0℃ |
| Conductivity Accuracy | +/- 0.5% F. S +/- 1 word |
| Dissolved oxygen saturation | 0.0~200.0% |
| DO air pressure compensation | 0~200.0kPa automatic compensation |
| DO salinity compensation | 0~45ppt automatic compensation |
| Temperature range | -10.0~135.0°C（14.0~275.0℉） |
| Temperature Accuracy/resolution | ±0.2℃ |
| Operating system | Chinese/English |
| Prompt Volume/screen luminance | Adjustable |
| Data output | U disk/PC/printer (printer optional) |
| Data storage (storage content) | 1500 groups (number, value, unit, temperature, time) |
| Power Supply | DC12V |
Packing list
After-sales instructions
Warranty days: 730 days
1. For product quality problems caused by non-human products of instruments and equipment, the manufacturer will provide free warranty services during the warranty period;
2. There is no warranty period for fragile and consumable parts, and if you find product quality problems after receiving the goods, please apply for return and exchange within 7 days, and you will not wait for the overdue ones;
[Note] For after-sales services outside the Chinese mainland, if the instrument requires repair, the shipping and possible associated taxes shall be borne by the sender. Generation address of the manual: http://en.nbchao.com/p/49408/Specification.html , which is only used by users who purchase commodities from the NBCHAO.