Detection records can be stored, printed and transmitted,The data can reach 150,000, and data record query function supports exporting documents Advanced Detection: Equipped with high-sensitivity sensors for carbon monoxide, oxygen, and other gases, ensuring comprehensive environmental monitoring Portable Design: and compact, this gas detector is designed for easy carrying and operation, making it ideal for both home and industrial use User-Friendly Interface: Features a clear digital display and simple controls for effortless operation. Alerts users with audible and visual alarms when dangerous gas levels are detected Battery Type:3.7V/2500mAh Appearance size:145x68x28mm Protection level:IP65 Working hours 8 hours Service life:2-3 years Product weight 260g working environment:-20℃-50℃ Less than 95%RH no condensation The product appearance and printed words depending on batch, but this does not affect use. Color: As Shown Material: plastic Package Contents: 1 * 4-in-1 Gas Detector Only above package content, other products are not included. Note: Light reflection and different displays may cause color of item in picture a little different from real thing. The measurement allowed error is +/- 1-3cm.