BG496521418 Pro version has more accessories for the probes.

BG496521418 The BP reading is of no real use. It shows roughly the same reading +or- 5. If u reduce your age the BP will be lower! At age 70 my BP is 150-90. After reducing age to 25 the BP is correct, 120-80! If I walk on a treadmill it doesn't go up as my regular BP apparatus shows.

BG496521418 Auto sleep is 5 to 30 secs.

BG496521418 If u mean NFC, then no.

BG496521418 Yes, 2 Li ion 18650 cells mounted on the single main PCB. Cells are accessible by removing only the battery cover.

BG496521418 If u are referring to the multimeter it is default Auto. Press Auto for Auto or press 'Measure-Range' for manual range. Keep pressing for each scale which will be displayed at top. Select parameter displayed on bottom of display with the F keys.

BG496521418 242 with one 60 MHz probe which is fully insulated. The sockets are also insulated. There are 2 BNC to croc clip probes in the models with signal generator.

BG496521418 It has 5 Li cells (18650) of 2000 mAH each in series. 48VF is just a deceptive model number written outside. Individual cells can be replaced by direct soldering after filing the surface. The factory way is electric welding 2 spots.