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Adding a thermometer to your digital multimeter

Posted on Friday, May 4th, 2012 in DIY by DP

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 on Friday, May 4th, 2012 at 9:00 pm and is filed under DIY. You can follow any responses to this entry through the RSS 2.0 feed. You can skip to the end and leave a response. Pinging is currently not allowed.

3 Responses to “Adding a thermometer to your digital multimeter”

  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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