The construction and wide voltages detection ranging make this meter a must having for realtime battery and electrical Waterproof round LED digital voltmeter ensures accurate DC4-100V voltages, for outdoor durability and reliabled in wet conditions Ideal for DIYer enthusiasts, marine technicians, and motorcycle maintenance professional requiring electrical systems diagnostics Perfectly suited for marine equipment, outdoor power systems, and automotive applications exposedly to rain, or splashing water Featuring circular design and tool less installation, this housed voltages meter integrates seamlessly into panel while clear LED numerical readings, Manufacturer: alloneslife