It says right here that the 1.5% is for the entire Ohm range:
https://www.toolworld.in/storage/media/product/technical_documents/DMT-99%20Multimeter.pdf
Since most circuits use 1% resistors nowadays, I'd like to have a meter with more accuracy than the components which isn't hard to achieve. I do hope you agree with the fact the DMT-99 is showing way too much digits versus its accuracy. I hope you also see that measuring 0.01 Ohm is not going to happen with a relatively simple, 2 wire DMM. Heck, most 6.5 digit DMMs will have trouble doing that even though these typically have 4 wire connections. Your best bet for measuring low resistance values is likely the Keithley DMM6500 which has a 1 Ohm range versus the usual >= 200 Ohm range being the lowest range for resistance measurements on DMMs.
The actual manual from the FNIRSI site begs to differ, see below. So given that, it meets your criteria for better than 1%.
Yes, I agree .01 ohm is a tough call for a simple and cheap 2 wire DMM and this one is only good to .1Ω. I had misread the specification earlier .. so RFTM
properly. My bad on that one. I'll correct the offending post.
Comparing this to Keithley is like bringing tank to a snowball fight.
Anyway, I know everyone has a hate-on for older meters but my Fluke 8012A is a 2-wire meter with a 2Ω range. It works well despite its age.