Adding a thermometer to your digital multimeter

in DIY by DP | 3 comments

Reading ambient temp is useful in electronics, and reading it from your handy multimeter is even better. Raj added a thermometer feature to his DMM, by hard-wiring it into the case. He used an LM35 analog temperature sensor and a slide switch connected to the multimeter inputs. You just flip the knob to the 200mV range and slide the switch to get the readout.

Via the forum.

This entry was posted in DIY and tagged , , .

Comments

  1. Lex harmse says:

    Caution! Altering the circuits inside the meter will
    make it UNSAFE for measurements on powerlines!
    Dangerous advice!

  2. Gnarus says:

    I have put an RF detector in one before which was cool. I agree though no heavy duty testing, I only used mine for simple DC stuff (glorified battery checker).

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