Product Name: Portable hydrogen sulfide detector Model: HD2000L-H2S Product Overview: HD2000L portable hydrogen sulfide detector, is a way of using pumped continuously detect the concentration of hydrogen sulfide gas intrinsically safe equipment, imported electrochemical sensors, quickly detect the precise concentration of hydrogen sulfide gas, effectively guarantee the safety of staff, intelligence level two alarm function great to meet the industrial site security monitoring equipment and high reliability requirements. Professional portable design for easy moving and beautiful to use, this product is widely used in petroleum, chemical, metallurgy, refining, pharmaceutical, home environment, schools, laboratories, and other fields. Main features: ◆ simple operation six buttons, and can quickly and accurately set the parameters and calibration data ◆ using high-capacity rechargeable lithium battery, can work long hours ◆ definition digital LCD backlight LCD design, the user can set the high and low alarm ◆ Built-point super suction pump, easy to detect inaccessible environments ◆ sensor using imported ◆ electrochemical hydrogen sulfide sensor can manipulate data and restore the factory settings and other functions for the user to solve the problems caused by improper operation? ◆ unique The shell design, non-slip, dustproof, easy to wear ◆ own zero and the target point calibration function Technical parameters: Detection of gas:? hydrogen sulfide H2S detection principle:? electrochemical principles (sensor life 3 years) sampling methods:? pumping type, test results more quickly and accurately measuring range:? 0-50ppm, 100ppm, 200ppm, 500ppm, 1000ppm, 2000ppm, 5000ppm, 10000ppm (optional, not listed range can be customized) Resolution:? 0.01ppm, 0.1ppm, ? 1ppm detection accuracy: ≤ ± 3% FS Response time: ≤20 seconds Recovery time: ≤20 seconds Repeatability: ≤ ± 1.0% Operating Temperature: -???? 20 ℃ ~ + 60 ℃ Operating Humidity: 5% -? 95% RH non-condensing Protection class:? IP65 Explosion levels:? Exia II CT6 (intrinsically safe) Alarm:?? audible alarm, the decibel value: 90 db shell material:? detector special material easy to wear, corrosion work Power:? 3.7VDC, 1700mA built-in high-performance rechargeable lithium battery with charging protection function Dimensions:? 130 × 63 × 34mm (L × W × H) the amount of weight ??:? 0.26Kg Standard accessories: charger, manual , warranty card, certificate, packing box Quality Assurance:? machine one year warranty, free repair warranty