12V延时继电器模块 汽车启动延时开关器带光耦 信号触发
（详情提供中英文描述）
中文描述：
工作原理：本模块是外部信号触发延时模块。
具体为：1）--到->2)--到->3)--到->4) 。
另：（本模块的触发信号可以由单DU的电源系统提供与模块的供电可以不是一个电源系统，同时触发电平可以为高电平脉冲 或者 也可以为低电平脉冲，通用性强）
模块特点：
1、长*宽=52mm*16mm
2、模块工作电压有12V
英文描述：
product description:
Working principle: This module is an external signal trigger delay module.
Specifically: 1)--to->2)--to->3)--to->4).
1) Power the module (12v or 5V), the relay will immediately pull in (the state of the module output is: normally open and common conduction, normally closed and public disconnect)
2) After 0-25 seconds delay, the relay is disconnected (the module output status is: normally open and public disconnect, normally closed and common conduction)
3) Always keep disconnected until the external trigger signal is triggered, the relay pulls in again
4) After the successful trigger, delay the delay again after 0-25 seconds. Note: If the trigger signal is always there, it will always pick up. After the trigger signal disappears, the module starts delaying the delay, and the delay is 0~25 seconds. open. (At this point, the relay returns to the pre-trigger state normally open and public disconnect, normally closed and common conduction).
图片展示：
| 수입신고 1USD |
구매/결제대행 1CNY |
TT송금 1CNY |
|---|---|---|
| 6.81 CNY | 203.62 KRW | 0.149 USD |
