Wanting to purchase a light meter / flash meter but put off by the cost of those usually found in the market and restricted use I will do, I decided for this one whose price by far outshone all others. Result; I'm perfectly happy with my choice. This device has all the features that one can expect from a flash meter; light meter, measuring the incident light, reflected, flash measurement with or without cord, allowing EV measurement using the table provided in the manual of measure light Lux, to do this a small device is provided which comes s' fit over the sensor. After some tests I noticed that the light measurement is much finer than that of the NPC and finely adjusts the exposure. What I found good; The price, relatively complete functionality for everyday use, comes with a leather case, lanyard, What I found less; The instructions in Korean and English but not fluent in the language it is doing the same, a small reserve on the incident measuring adapter that has its small case but easy to lose given its size and the fact that you can not store it with the flash meter. I recommend this product for its price / quality ratio and for general use in the context of a professional activity in the studio, for example, I can not say.