AQM-551 Portable CO2 Detector Carbon Dioxide Gas Monitor 0~10000ppm with Alarm Indicator, 7605 Data Logging Capacity, Color Display, USB Rechargeable IAQ Analyzer for Petroleum Industry, Metallurgy Laboratory & Scientific Research

This Carbon Dioxide Monitor is a high-precision safety tool designed to detect invisible CO2 threats. Built with a rugged, explosion-proof shell and high-quality sensors, it's the ultimate guard for your health, your workspace, and your industrial site. From detecting "sick building syndrome" in offices to monitoring hazardous levels in chemical plants, this monitor is your reliable early warning system. It is widely used in petroleum, chemical, environmental protection, metallurgy, refining, gas transmission and distribution, biochemical medicine, agricultural research, etc. Features: Color screen display and user-friendly interface Dust-proof, explosion-proof, and designed for the toughest environments. Dual alert system: Sound and light alarm when it reaches the dangerous levels Massive Data Logging that automatically records up to 7,605 data with review function Rechargeable feature Guide for CO2 concentration: 350-450ppm: the same as the general outdoor environment 350-1000ppm: fresh air and; smooth breath 1000-2000ppm: turbid air; feel sleepy 2000-5000ppm: headache, sleepiness, dull, heartbeat accelerating, and feeling nauseous and unable to concentrate Over 5000ppm: severe hypoxia, permanent brain damage, coma, and even death Specifications: Measuring range: 0~10000μmol/mol Resolution: 1 Accuracy: ±40μmol/mol±3% *The accuracy is specified in an environment with a temperature of 25°C and an air pressure of 101.3kPa **If the reading is within the range of 400~2000μmol/mol, the accuracy is ±40μmol/mol±3%. If it exceeds this range, the accuracy will become large Response time (90%): About 2 minutes Indication mode: LCD displays real-time data and system state, LED and sound indication alarm Storage Environment: Temperature: -10~55℃ / Humidity:<85%RH non-condensing Operation Environment: Temperature: 0~50℃ / Humidity:<85%RH non-condensing Working voltage: DC 3.7V (Lithium battery capacity 1800mAh) Battery Model: LP103450-1800mAh Charging time: About 4 hours Standby time: More than 8h on end (slightly changes with working state) Dimensions: 71 x 153 x 49mm Weight: approx., 215.4gms Set Includes: 1 x CO2 Monitor 1 x USB Charging cable Instruction Manual