This surface resistance meter measures the resistance value of the surface of the object by placing two parallel electrodes close to the surface of the object to be measured, so as to determine whether the object to be measured is a conductor, an electrostatic material or an insulator. At the same time, the meter can also be used to measure the resistance of the object to the ground, which is particularly suitable for different anti-static fields. In addition, it can also measure the ambient temperature for your reference. Product Features: Large LCD display for surface resistance testing, equipped with switchable backlight, clear readings. 3 ways to display surface resistance or material properties at the same time. Measurable ambient temperature: 050 / 32122. Data retention, low battery indication, automatic shutdown within 30 seconds without operation. Small and portable, light weight, easy to carry and operate. Switchable temperature units: Celsius () and Fahrenheit (). Widely used in microelectronics, medicine, aerospace, professional machinery and other fields. Specifications: Material: ABS Resistance measurement range: 0.1x10^(3)1.5x10^(12) Conductor material: 10^(6) Antistatic material: 10^(6)10^(11) Insulator material: ≥10^(12) Resistance measurement accuracy: ±10% Resistance measurement response time: 1s Temperature measurement range: 050 / 32122 Temperature measurement accuracy: ±2 / ±3.6 Power supply: 1 * 9V 6F22 battery (not included) Working environment: 050, 10~70RH% Product size: approx. 64 * 35 * 126mm / 2.5 * 1.4 * 5.0 inches Product weight: approx. 122g / 4.3oz Package size: Approx. 17.5 * 12.5 * 5.5cm / 6.9 * 4.9 * 2.2 inches Package weight: Approx. 241g / 8.5oz Package list: 1 * Surface Resistivity Meter 1 * Ground Lead 1 * User Manual (English)