A laptop and SMAART or other FFT software would work, I'm sure, but it might actually be more than he needs. He will have to add a mic and probably phantom power and maybe a mic pre and make sure the laptop has a decent sound card.
Is 1/3 octave good enough? If so, and if he wants a simple all in one unit, there are two brands that come to mind.
The first is the old stand by Audio Control SA-3051 or SA-3052 or SA-3055. All these models are about the same. They have been around for years, they have good filters, and are just about bullet proof. They can be bought off eBay for about $500.
http://www.audiocontrol.com/t37/5650/Acoustic-Analyzers.htmlSmaller self-contained SSAs are the Phonic PAA2 and the PAA3. Both units are similar, the biggest difference is the PAA3 can measure RT60 and the PAA2 can't. These Phonic SSA don't have as good filters as the Audio Control units, but they are much more portable. Prices are about $300 for the PAA2 and $400 for the PAA3. Here are some links:
http://www.phonic.com/en/testers/paa2.htmlhttp://www.phonic.com/en/testers/paa3.htmlThere are other companies that make all-in-one SSAs (Gold Line and Ivie come to mind) but I have not used them. I own both the Audio Control and Phonic units and I know they work fine.