Description:This surface resistance reflect scope reflector survey precision is high, the simplicity of operator, carries conveniently, is surveys the superficial electronic resistivity the good choice.If you Do not how to use it ,you can read the manual as your guide.Specification:• Measuring range: 10^3Ω-10^12Ω• Input voltage: DC9V• Operating Temperature: 5-49C• Precision grade: ±1/2Decade• Operating Relative Humidity: 0%~90%RH• Repeatability: 5%Power Supply: 9V PP3 Alkaline Battery(Not Included).
eBay