I disassembled it and found that it is really contains laser module that I reverse engineered earlier:
But the module version is "701A", it's not like "512A" that I bought earlier:
It can been seen that some components are placed at another places.
I want to continue reverse engineering: measure some parameters like APD voltage, desolder some SMD components and measure their values. It can help me to increase parameters of laser rangefinder module.