DS-PM1-I1-WE Hikvision AX PRO Series Single Input Transmitter 

• Small size design, which can be put into wired detector easily

• 868MHz two-way wireless communication

• LED display, show the real status of device

• With one tamper input and one PGM, can be used as zone input or alarm outpout

• With 3.3v voltage output, can be used to power up external wired detector

• Detection of device removal by accelerometer