Fluke 27 ii industrial multimeter fluke 3947770 p the fluke 27 ii digital multimeter defines a new standard for operating in harsh conditions with the features and accuracy to troubleshoot most electrical problems the meter has a ip 67 waterproof and dustproof rating and msha approvals p p it has an extended operating temperature range of 15 deg c to 55 deg c for up to 20 minutes and 95 humidity and has been designed and tested to withstand a 3m drop the fluke 27 ii has been buil