Conductivity, TDS, Temperature.
★ LCD display screen.
★ Manual temperature compensation.
★ Cell constant is settable.
Conductivity Cell (k=1), Electrode Holder
| ModelTechnical parameters | DDS-307A | |
| Grade | 1.0 | |
| Measuring range | conductivity，TDS，temperature | |
| Conductivity | 0.00μS/cm～100.0mS/cm | |
| TDS | （0.000～1999）mg/L | |
| Temperature | （0.0～99.9）℃ | |
| Basic error | Conductivity | ±1.0%FS |
| TDS | ±1.0%FS | |
| Temperature | ±0.4℃ | |
| Stability | （±0.30%FS）/3h | |
| Power supply | AC （220±22）V，（50±1）Hz | |
| Size（mm），Weight（kg） | 290×210×95，1.5 | |
| Standard electrode | DJS-1C conductivity electrode (platinum black) | |
| Standard electrode matching measuring range | 2.00μS/cm～20ｍS/cm | |