insulationtester
nounUK /ˌɪnsjʊˈleɪʃən ˈtɛstə/
US /ˌɪnsəˈleɪʃən ˈtɛstər/
A tool that checks if electricity can leak through something.
The electrician used an insulation tester to make sure the wires were safe.
OTHER MEANINGS
2. A device that measures how well a material blocks heat or sound.
They used an insulation tester to check the wall's heat blocking.
3. A person whose job is to check insulation.
The insulation tester inspected every room before winter.
4. Software that checks whether a program's parts are properly separated.
The insulation tester flagged a module that shared too much data.