If you really want to buy one, you can buy the TH2821A, TH2821B, or TH2821 from TongHui in Ebay. Personally, I never heard that company name but I bought one. The meter construction looks cheap but its' capacitance and resistance measurements are as accuracy to the fluke I have.
Anyway, if you running in low budget. You better build your own. You will learn more by building one.
Feel free to share your experience building one.
![Cheesy :D](https://www.eevblog.com/forum/Smileys/default/xcheesy.gif.pagespeed.ic.KPzuH4J-TG.png)