Bel-Art，H-B DURAC 4通道电子计时器，带白板和校准证书

这个四通道计时器有一个内置的白板，有助于跟踪时间和其他关键信息。

• 每个通道的声音警报

• 内置白板和带橡皮擦尖的干擦除标记（包括在内）有助于跟踪关键信息

• 程序：小时/分钟；显示：小时/分钟/秒

• 可切换定时能力：23小时：59分钟/59分钟

• 计数方向：向上/向下；显示倒计时后经过的时间

• 上次设置内存

• 按键确认功能提供数据输入的声音指示

• 平放在实验台上，使用翻盖式开放式支架进行垂直观察，或使用磁性靠背固定金属表面

• 需要两节AAA电池（包括在内）

• 具有校准证书和单独序列号，这些电子计时器在H-B的三重认证/注册ISO/IEC 17025:2017，A2LA认证实验室（Cert#2448.01）中进行测试和校准，设备校准可追溯至NIST。

• CE标记，符合RoHS

Bel-Art, H-B DURAC 4-Channel Electronic Timer with White Board and Certificate of Calibration

This four channel timer has a built in white board that helps keep track of time and other critical information.

• Audible alarm for each channel

• Built in white board and dry erase marker with eraser tip (included) helps keep track of crucial information

• Programs: hours/minutes; Displays: hours/minutes/seconds

• Switchable timing capacity: 23 hours: 59 minutes / 59 minutes

• Count direction: up/down; displays elapsed time after countdown

• Last time set memory

• Key press confirmation feature gives an audible indication of data entry

• Lay flat on a bench, use the flip-open stand for a vertical view, or use the magnetic back for metal surface attachment

• Requires two AAA batteries (included)

• Features a Certificate of Calibration and individual serial number, these electronic timers are tested and calibrated in H-B’s exclusive triple accredited/registered ISO/IEC 17025:2017, A2LA accredited laboratory (Cert #2448.01), against equipment whose calibration is traceable to NIST.

• CE marked, RoHS compliant