Leici multi-parameter water quality analyzer is a multi-functional water quality analyzer with manual and automatic temperature compensation functions and a large LCD display. The parameters of the DZS-706 series of water quality analyzers are divided into three models : DZS-706A , DZS-706B, and DZS-706C according to different measurement parameters. The main features of the three are basically the same, and the appearance is also the same. The following mainly compares the parameters of the three models, as shown in the following table:
| model | DZS-706 | DZS-706A | DZS-706B | DZS-706C | |
| Instrument level | pH: 0.01 grade; Conductivity: 1.0 grade | ||||
| Measurement parameters | Conductivity, dissolved oxygen, pH/pX, temperature | Conductivity, pH/pX, temperature | Dissolved Oxygen, pH/pX, Temperature | Conductivity, Dissolved Oxygen, Temperature | |
| Measuring range | pH/pX | (-2.00～20.00)pH/pX | ● | ● | - |
| ORP | (-1999.9～1999.9)mV | ● | ● | - | |
| Conductivity | 0.000μS/cm～199.9mS/cm | ● | - | ● | |
| Resistivity | 0.00Ω·cm～20.00MΩ·cm | ● | - | ● | |
| TDS | 0.000mg/L～100g/L | ● | - | ● | |
| salinity | (0.00～8.00)% | ● | - | ● | |
| dissolved oxygen | (0.00~19.99)mg/L | - | ● | ● | |
| dissolved oxygen saturation | (0.0~199.9%) | - | ● | ● | |
| Response time | ≤45s (90% response at 20°C) | - | ● | ● | |
| ion concentration | (0~19990), unit μg/L, mg/L, g/L, mol/L, mmol/L | ● | ● | - | |
| temperature | (-5.0～105.0)℃ | ● | ● | ● | |
| resolution | pH/pX | 0.01pH/pX | ● | ● | - |
| ORP | 0.1mV | ● | ● | - | |
| dissolved oxygen | 0.01mg/L | - | ● | ● | |
| dissolved oxygen saturation | 0.10% | - | ● | ● | |
| temperature | 0.1°C | ● | ● | ● | |
| basic error | pH/pX | ±0.01 pH±1 word | ● | ● | - |
| ORP | ±0.1%FS | ● | ● | - | |
| Conductivity | ±1.0%(FS) | ● | - | ● | |
| Resistivity | ±1.0%(FS) | ● | - | ● | |
| TDS | ±1.0%(FS) | ● | - | ● | |
| salinity | ±0.2% | ● | - | ● | |
| dissolved oxygen | ±0.30mg/L | - | ● | ● | |
| dissolved oxygen saturation | ±10.0%FS | - | ● | ● | |
| temperature | ±0.3℃±1 word | ● | ● | ● | |
| Temperature compensation | Automatic, PH: (0.0~100.0)℃; conductivity: (0.0~100.0)℃; dissolved oxygen: (0.0~40.0)℃ | ● | ● | ● | |
| power supply | DC universal power supply (9V DC, 800mA) | ● | ● | ● | |
| Dimensions (mm), weight (kg) | 280×215×93, 1 | ● | ● | ● | |
