Thermal mass flowmeter

Powered by two 3.6V 18650 rechargeable lithium batteries.
Low-power design, up to 8 hours of continuous operation on a single charge, can be used with an external battery.
Local cache memory with capacity for up to 1 million records, with historical data export function.
USB to Type-C data cable included.
Removable and extendable stand.
3.5-inch backlit LCD display.
Built-in coin cell battery, automatic RTC clock calibration.