trumeter FlexAlert Universal Small-Form Countdown Timer មគ្គុទ្ទេសក៍អ្នកប្រើប្រាស់
FlexAlert from QUICKSTART GUIDE Starting and resetting the unit 1 Unclip housing by twisting a flat screwdriver in the slot between the front and rear cover. 2 To turn on, remove the battery insulation tab ensuring the battery remains in…