Electrolytic tester. Integrated circuitry checks moisture content of fluid by measuring the electrical resistance and comparing it with acceptable limits. Easy calibration check using water. Three LED read-out. Just switch on and insert probe for immediate result. Red LED warns when battery is low and needs replacing. Powered by 1 x AAA battery (supplied). Features & Benefits: • Electrolytic tester. • Integrated circuitry checks moisture content of fluid by measuring the electrical resistance and comparing it with acceptable limits. • Easy calibration check using water. • LED warns when battery is low. • Powered by 1 x AAA battery (supplied). • Model No. VS0272 Specifications: Model No VS0272 Brand: Sealey Nett Weight: 0.03kg