Operation Manual

Cautions
➢ To have accurate indication of blood alcohol concentration, please
test at least 15 minutes later after drinking.
➢ Do not put smoke into the tube, which can damage the sensor.
➢ Do not clean surface by Ethanol. Please use soft wet cloth and
neutral detergent.
➢ Do not use inappropriate charger, otherwise it may cause AT319S
damaged or malfunction.
➢ Do not use it beyond -10℃-50℃.
➢ Avoid any fall or strong shock.