Hi i have just got a Mastech ms5308 on discount on amazon,
https://www.amazon.co.uk/gp/product/B07HT2HW7N/ref=ppx_yo_dt_b_asin_title_o01_s00?ie=UTF8&psc=1the unit has 30% off price, So it cost £128.13 with all test leads and a nice bag, but no ac adaptor, there is a long list of posts
about the one that use to be supplied with the tester,
i had it the next day with prime, the only problem i had with it was it kept tuning it self on and then off as soon as you tuned it on, so i opened up the unit, there are no anti tamper labels, and on the main pcb were the power switch is wired to both wires were stripped to long, and the wire was going over the other pad/track it was so close that you could push down on the case and it would turn on,off,
all is fixed now after 5mins,
it has the same chip set as the DER 5000 tester ,
i am playing and learning now, i just need to find out what size dc plug i need for it,
Thanks Dave 2E0DMB