Convert Wireless PIR sensor to use power supply instead of Batteries

I want to convert a wireless PIR\Door Sensor so that it runs from a power supply rather then battery's

Currently it take a single or double AA 1.5v Battery

I have multiple PIR's so need some kind of a solution where 1 can use one power supply for all the devices.

Specs are below, Any Advice?

Door Contact
Power supply: DC 1.5V (1 x AA 1.5V LR6 Battery)
Satatic current : ≤30uA
Alarm current : ≤40mA

PIR Sensor
Power supply: 1.5V AA battery x 2
Static current: =< 70uA
Alarm current =< 7mA

The easiest way would be to find a 3.3V plug in AC/DC adapter. Use the 3.3V to power the PIR sensor and insert three 1N4004 diodes in series with the 3.3V supply to drop the voltage to approximately 1.5V for the door contact?

How about an LT3022 https://www.linear.com/product/LT3022 in each device and use a USB phone charger for the 5V raw power?