Feature: 1. Online monitor can monitor electrical conductivity at any time, more convenient. 2. Compact size, lightweight and portable with LCD display for clear and easy reading. 3. It has automatic temperature compensation function. 4. The meter with accurate measurement, stable running and without maintenance, so it It's an ideal auxiliary instrument of various types of small pure water equipment. 5. Made of premium ABS material, wear-resisting, strong and sturdy. 6. This series of instruments are industrial on-line instruments for measuring and controling conductivty. 7. It applies widely to the measurement and control of pure water in the fields of pharmacy, chemical industry, electronic industry, food industry and beverage industry. Specification: @font-face{ font-family:"Times New Roman"; } @font-face{ font-family:"宋体"; } @font-face{ font-family:"Calibri"; } p.MsoNormal{ mso-style-name:正文; mso-style-parent:""; margin:0pt; margin-bottom:.0001pt; mso-pagination:none; text-align:justify; text-justify:inter-ideograph; font-family:Calibri; mso-fareast-font-family:宋体; mso-bidi-font-family:'Times New Roman'; font-size:10.5000pt; mso-font-kerning:1.0000pt; } span.msoIns{ mso-style-name:""; text-decoration:underline; text-underline:single; color:blue; } span.msoDel{ mso-style-name:""; text-decoration:line-through; color:red; } @page{mso-page-border-surround-header:no; mso-page-border-surround-footer:no;}@page Section0{ margin-top:72.0000pt; margin-bottom:72.0000pt; margin-left:90.0000pt; margin-right:90.0000pt; size:595.3000pt 841.9000pt; layout-grid:15.6000pt; } div.Section0{page:Section0;}Item Type: Conductivity Monitor Model: WS-C51 Material: ABS Color: Black Weight: Approx.622g/21.9oz Measuring Range: 0~20ms Display Mode: LCD Accuracy: 1.5% (FS) Stability: ±2X10-3(FS)/24h Working Pressure: 0~0.5MPa Medium's Temperature: 0-50 ℃ Temperature Compensation: Taking 25℃ as the datum point,digital temp compensation. Output Current / Voltage: Insulated Active Output: 4-20mA (≤500Ω) Control Output: Maximum and minimum (constantly open) Contact Output: Capacity of Contact Points: 3A / AC250V (with resistant loads) 1.0cm-1 electrodes (0.1cm-1 constant optional) Length of the Cable: 4.5m/14.8ft or otherwise agreed Environmental Conditions: Temperature: 0-50℃ Humidity: ≤85% RH Power Supply: AC 220V±10% 50 / 60Hz Dimensions: Approx.48x96x100mm / 1.9x3.8x3.9in(Height x Width x Depth) The Hole on the Dial Plate: Approx.45x92mm / 1.8x3.6in The Way of Installation: Install with a disk Package List: 1 x Conductivity Monitor1 x Instruction Manual1 x Probe Note: 1. Please allow 1‑2cm error due to manual measurement. Thanks for your understanding.2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.3. Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.