The Daiwa is fairly accurate along with my Bird meters right out of the box. Enjoy.
Of course, the meter gives you VSWR reading while in the AVG setting only.
You can install a small internal jumper wire and get SWR readings while the meter is in the PEP mode also.
http://www.worldwidedx.com/threads/new-daiwa-cn-901hp-power-swr-meters.211701/
I have two of the CN-801HP meters and one CN-801HP3 meter. I have performed the modification to enable the power reflect needle to operate in the PEP mode. They work great.
I just recently purchased the new CN-901HP meter (801HP's no longer available).
The meter has changed somewhat. All push buttons for operation and the PC board has also changed. I have searched extensively for a modification to enable the SWR needle in PEP mode. None available.
So, I spent an afternoon taking my new meter apart and tracing the circuit board.
I have located the points for the SWR/PEP modification. Just add a short jumper very carefully, just as in the 801HP meters.
I will post the photos showing the mod.
I do not take responsibility if this modification does not work for you, or if you make a mistake.