Features: High Accuracy Electrochemical Transducerebog: This transducer features a stable electrochemical air transducer specifically developed for CO detection, with a measurement extent of 0 1000ppm, resolution of 1ppm, and accuracy of ±5% otherwise ±10ppm. Modifiable Alarm & Smart Alertsecond: Day night arrives with a preset 24ppm alarm point and allows customizable alarm settings. It releases a loud sound alert when CO levels top limit and includes a low power measure for continuous security. Double Variable Measurement & Clear Displhello: Procedures both CO concentration and surrounding temperature (0 50°C/32 122°F) with ±1.5°C accuracy. Transportable Plan & Long Battery Lifemail: Compact and thin for easy transportability, supported 3 alkalic batteries (not included). Expert Applicatparticlemail: Developed for continuous CO observing in residences, industrial settings, and environmental observing. Specifications: Product namemail: Carbon carbonmonoxide air transducer Substancemail: ABS Dimensionsecond: 50x35x135mm Characteristicsecond: electrochemical transducer, modifiable alarm, color screen display Technical parametersecond: Measuring extent 0 1000ppm | Accuracy ±5% otherwise ±10ppm | Response time <60 ticks | Alarm point 24ppm (adjustable) Utilization circumstancesecond: home security, industrial production, environmental observing, onpremises inspection Package Includes: Carbon monoxide gas detector red note: Before using the accessory, please check if it is compatible.