
KL307/KL308/KL319

Features
9 Sensors in 1
Optional 4.2 Inch E-ink Screen
Traffic Light Indicator & Buzzer
Anti-theft Protection
Vivid Emoticon Indication (KL307/KL308/KL319)
Powered via USB Type-C(KL319/KL319L)
Battery Life up to 3 Years (KL307) / 1 Year (KL308)
Battery Life up to 4 Years (KL307L) / 1.5 Year (KL308L)
Strong Store Capacity of Historical Data Records
Data can be stored in the device and cannot be manually deleted, further securing the traceability of the reported information.
Superior Sensor with
Strong Anti-Interference
Selection for HCHO sensor is dedicated to stable reading, particularly in its resistance to alcohol.
More Features with Bigger E-Ink Screen
Multiple Display Styles,Light /Dark Color Theme
Support Retransmission for Reliable Communication
With support for data retransmission,the device guarantees that the web server gets all the data even if the network is down occasionally.