3 In 1 Multifunctional Portable Carbon Monoxide Detector 1. Detection range: 0-999ppm 2. Working voltage: 5V 3. Preheating time: 35s 4. Data refresh frequency: 2s 5. Working humidity: 0~95%RH 6. Working temperature: -20-60 degrees Celsius 7. Charging method: Type-c interface 8. Adopt high-digit electrochemical carbon monoxide sensor to accurately detect environmental data 9. Built-in electrochemical carbon monoxide detection high-performance chip to ensure more accurate instrument detection 10. 3D multi-porous air duct design to improve air volume penetration rate and accurately calculate the content of tiny particles 11. Multi-faceted openings, real-time air circulation convection monitoring is more accurate 12. Temperature and humidity sensor, which can sensitively detect temperature and humidity changes and use automatic compensation technology to reduce the impact on CO detection results, making the detection results more accurate 13. G key one-key brightness adjustment, daytime brightness adjustment, intelligent power saving mode 14. High-performance large battery, 1000mAh large-capacity polymer lithium battery, safe and durable, ultra-long battery life 15. Widely used in various indoor and outdoor places, indoors, kitchens, restaurants, cars, homes..., can effectively avoid accidents such as gas poisoning and explosions 16. Size: 90x51x17mm 17. Weight: 80g