午夜福利在线观看不卡视频_日本五十路熟女视频_狠狠亚洲婷婷综合色香六月_亚洲人成综合网站777香蕉_国产一区二区精品久久妓女_欧美一级做一级A性视频_91色操日本老熟女_国产精品动漫自拍_做床爱在线观看无遮挡_在人线av无码免费高潮水

A) OPERATIONS
    1)1. 5 V Operate
    2) Low Power Consumption
    3) Single or Double Key <START/STOP/RECALL> and <SET> Operation
    4) Soldering Option Default One Digit ,Two Digit，Three Digit or Four Digit
AND
Soldering Option Default Any Time 0001一9999 second or
                                  0001一9999 Minute or
                                    0001一9999 Hour   or
                                  0001一9999 Day
5)Press the Key to Set Time Setting
  Press the Key to Start Down Counting
  Press the Key to Pause, Press Again to Continue
  Hold the Key to Recall the Default Time
6) Corresponding Icons will be Turned On
7) Buzzer Sounds for 1 Minutes when Count to Zero