portable conductivity meter

Technical parameters of portable conductivity meter :
(1)Measure Range(can be setted):
          Electrical conductivity:0~20 μS/cm        K=0.01
          Electrical conductivity:20~200 μS/cm      K=0.1
          Electrical conductivity:200μS/cm~4mS/cm   K=1.0
          Electrical conductivity:4~20mS/cm         K=10.0
          Electrical conductivity:20~100mS/cm       K=30.0
          Temperature:-5~110.0°C;
(2)Resolution:
          Electrical conductivity:0.01μS/cm;0.01 mS/cm;
          Temperature:0.1°C;
(3)Basic Error:
          Electrical conductivity:±1%F•S;
         Temperature:±0.3°C;
(4)Automatic or manual temperature compensation range:0~110°C;
(5)Stability:±0.2%F•S/24h;
(6)Standard current output:
         0~10mA(Load resistance<1.5KΩ);
         4~20mA(Load resistance<750Ω);
(7)Two groups of relay contacts:
          3A 240VAC,6A 28VDC or 120VAC;
(8)Instrument power supply:
           220VAC±10%,50±1Hz, Power≤3W;
           24VDC,Power:≤1W(Optional);
           12VDC,Power:≤1W(Optional);
(9)Dimension:96×96×130mm;
(10)Installation:Tray (embedded);
            Mounting hole:91×91mm;
            Wall hanging type: 300×200×167mm;
(11)Weight:0.6kg;