Learn Spanish (Latin America): Llevo el detector dondequiera que vaya.

In Spanish, llevar means to transport, bring, or carry something from one place to another. Tomar means to take in the sense of grabbing something, catching a bus, or drinking. Since the speaker is carrying the detector with them, llevo is the correct choice.

Why is vaya in the subjunctive here instead of the indicative voy?

The phrase dondequiera que (wherever) is followed by the subjunctive when referring to indefinite, unknown, or future places. Because the speaker is talking about any possible place they might go to in general, rather than stating a specific, known destination as a fact, the subjunctive vaya is required.

How is the word dondequiera formed?

It is a compound word made of donde (where) and quiera (a subjunctive form of querer, meaning might want). It literally resembles saying "where one might want," but it translates as wherever. You will see this same useful pattern in other indefinite words like quienquiera (whoever) and cualquiera (whichever or anyone).

Can dondequiera que be written as separate words?

Yes, you can write it as either a single compound word followed by que (dondequiera que) or break the first part up (donde quiera que). Both versions are perfectly correct in Spanish and mean exactly the same thing.