This tester can measure the resistance value on object surface by putting two parallel electrodes close to object surface to be measured, so as to judge whether the measured object is a conductor, static material or insulator; meanwhile the meter can be used to measure the resistance to ground of object, which is specially applied to different anti-static fields. Description: Surface resistance test. Three modes to display resistance value on object surface or material property simultaneously. Ambient temperature measuring. Temperature unit conversion between °C/ °F. Data hold function. LCD back light for easier and clear reading. Specifications: Measuring Range of Resistance: 10^(3) - 10^(12) Ohm Accuracy: (+/-10)% Response Time of Resistance Measurement: 1s Measuring Range of Temperature: 0-50 °C / 32-122 °F Accuracy: (+/-)2 °C; (+/-)3.6 °F Power Supply: 9V 6F22 Battery (NOT included) Product Size: 12.5 * 6.3 * 3cm / 4.92 * 2.48 * 1.18inch Package Size: 20.5 * 15 * 7cm / 8.07 * 5.9 * 2.75inch Package Includes: 1 x Surface Resistance Meter 1 x Ground Lead 1 x User Manual (English)