Incomplete kit (No Teensy4.1, PSRAM and battery)

This kit contains almost all parts to build your own TeensyBat. The mainboard and microphone is also in this kit. (PCB version 1.0 for Teensy 4.1)

It requires soldering and other handywork. The enclosure is nearly finished but might need some reworking. 

None of the optional parts are included. 

The PCB is a newer version than mentioned in the construction manual, but building is nearly the same. The dimensions are the same as v0.7pcb so if you want to print your own enclosure you can use files for the v0.7 pcb.

The difference with previous versions mainboards that the backup battery for the realtime clock is missing, the power is now taken from the main battery. It is recommended to store the detector with a properly charged battery.

What is not in this kit and you need to gather yourself are:

Teensy 4.1 (noheaders, no ethernet) 
PSRAM chips (optional, maybe I have some stock)
LI-PO battery (I got some Lite-energy cell's for aliexpress)