Home›Browse›Current loop🌐ItalianoEnglishDeutschEspañolFrançaisItalianoNederlandsРусскийहिन्दी中文日本語EntityQ1422221· pop 9· linked from 118 articlesCurrent loopSign in to saveAlso known as 4-20mAelectrical signalling schemeWikidata factsInstance ofmethodSources (3)wikidata.orgdocs.openalex.orgweb.archive.orgvia Wikidata · CC0Available in 9 languagesEspañolFrançaisDeutsch中文हिन्दीCatalanFinnishNederlandsvia Wikidata sitelinks · CC0