Like anything.. you kinda get what you pay for. I run a Fluke 325 that I'm very happy with, but they aren't exactly cheap. For a true-RMS clamp though.. it's not "terrible". The 323 usually runs around ~$95 and the 325.. ~$265.
A lot depends on what you want it to do. Take a look...
There are others on the market. RMS isn't a requirement, but expect to pay right around $90-$100 for a decent one... $40-$50 would probably be doable, but I wouldn't know which to recommend in that range. Hopefully others will chime in.
The Klein Tools CL800 isn't a bad little meter. Pretty feature packed for it's price range. Probably a better buy than a Fluke 323 even though it's $5 more it'll do things the 323's can't.
We have the TST 510 system for the trailer and the factory TPMS in the Volvo. We have Voyager wired camera on the trailer that was installed by RV manufacture. It's funny that you wouldn't want to have the camera available while traveling. The four monitored camera's we have the one I use the most is the one on the back of the trailer when passing and changing lanes.