You would need to use JS for something like this, ACF has a JS API https://www.advancedcustomfields.com/resources/javascript-api/
In order to detect that the field has changes you would do something like this
$(document).on('change', '[data-key="field_123456"] .input', function(e) {
// do something when the value changes
});
This above is only an example off the top of my head, it may need adjustments. Replace the field key with the key of your range field.
