La Crosse Technology SW404 Instruction Manual page 19

APP setting temperature alert
According to the picture, switch to the main panel, click
"temperature alert" in the panel, jump to the second interface,
click the corresponding temperature alarm menu of different
channels to jump to the third interface. In the third interface,
click the slider to turn on or off the corresponding alarm
function, and set the upper and lower limits of the alarm by
sliding the temperature value. After the setting is completed,
click "Confirm" to complete the setting
P. 19