数显时间继电器，计时器

1.釆用进口高速单片机作为主控芯片，精度高，抗干扰能力强、可靠性高，寿命长。

2.多种记时控制方式,0.000~99.999s,0.00~999.99s,0.0~9999.9s, 0h00m00s~9h59m59s正计时,倒计时。

3.自动复位，按键复位，外部电平复位可设置。

4.掉电记时值可保存。