Product Name: Pump-priming carbon monoxide detector Model: HCK-200-CO First, the product description: HCK-200-CO carbon monoxide detector, is a continuous detection of carbon monoxide gas concentrations intrinsically safe equipment, instruments imported world- name manufacturers of sensors and sensor micro-controller technology, fast response, high accuracy, stability and repeatability, overall performance lead at home, small size, light weight, portable, user-definable parameters set up, easy to operate. Widely used in petrochemical, industrial production, environmental monitoring exhaust fumes, sewage treatment, pharmaceutical, home environment, school laboratories and other fields. Second, the product features: 1, using imported high-precision sensor 2, using the latest ultra-low power semiconductor nano-technology 32-bit microprocessor, 24-bit ADC data acquisition chip 3, dot matrix liquid crystal display technology, can display the kind of gas, gas unit, gas concentration value of 4, the built-in mini-pump, suction proactively detect 5, all software calibration, ensure more reliable measurement accuracy and linearity, and has a data recovery function 6, the entire Chinese operation menu, simple and practical, 7, a key to restore the factory settings function, can be removed from the misuse of troubled 8, two sound and light alarm, alarm point can set your own 9, high-capacity lithium polymer rechargeable batteries, long standby 10 shell is made of special high-strength plastic, non-slip, waterproof, dustproof, explosion-proof three technical parameters: Detection of gas: carbon monoxide CO (electrochemical sensor life 3 years) out of range: 0-500ppm, 1000ppm, 2000ppm, 5000ppm, 20000ppm, 40000ppm selectable resolution: 0.1 ppm (0-1000ppm); 1ppm (1000ppm above) detection accuracy: ≤ ± 3% (the actual concentration, more accurate, as the sensor may be) Repeatability: ≤ ± 1% Response time: ≤20 seconds (T90) Linearity error : ≤ ± 1% Recovery time: ≤20 seconds detection principle: electrochemical principle Zero drift: ≤ ± 1% (FS / year) Display: LCD backlit LCD display Alarm: sound and light two alarms, ≤80 dB detection method : pump-priming, automatic pumping real-time detection, measurement results are more accurate and fast data recovery: a key to restore the factory default settings, convenient and do not worry about misuse of automatic diagnosis: The system checks: battery power, display, sensors, hardware failure protection level : IP65 Working temperature: -30 ℃ ~ + 70 ℃ proof grade: Exia II CT6 (intrinsically safe) Operating Humidity: ≤95% RH non-condensing Dimensions: 130 × 63 × 34mm (L × W × H) Working pressure: ≤ 100Kpa Weight: 260g Power supply: 3.7VDC, 1700mA built-in high-performance rechargeable lithium battery with charging protection accessories: box, manual, charger, certificate, warranty card