Part number:Health Gearpoa0df7z6v Package Dimensions:9 x 8 x 8 cm Specification: Item Type: Socket Tester Material: ABS Main Functions: 3-Pin Socket Line Sequence Detection, Phase Voltage Detection (L_N), leakage voltage detection (N_E), switch leakage detection (RCD) Working voltage: 90-250V 45-65HZ Phase voltage measurement range: 90-250V, 45-65Hz , Accuracy: (2.0%+2) Leakage voltage measurement range: 0-99V/45-65Hz, Accuracy: (2.0%+2) Working temperature : 0-40 Working humidity: 20%-75%RH Storage temperature: -10-50 Storage humidity: 20%-80%RH />Altitude: 2000 Meters RCD current: >30mA RCD working voltage: 220V20V GFCI test: >5mA GFCI working voltage: 110V20V ( earth fault current leakage protector, it is a special protection device for North American market) Package List: 1 * Socket Tester 1 * Manual /> How to use: 1. Plug the tester into a standard 3-hole outlet. 2. When an error in the socket wiring sequence is detected, the red backlight will turn on to indicate a wiring error. 3. Then look at the indicator and feature comparison chart to determine which type of jack wiring is incorrect, then unplug the tester. 4. If incorrect wiring is detected, please consult a professional electrician to repair the wiring. [Electrical Plug Tester]: Advanced plug tester to quickly detect whether the plug wire connection is correct or not; Home improvement acceptance and safety inspection, saves you a lot of time testing for problems with outlets [Bright LED Display]: Light patterns are well labeled on the back of the device; Red LED indicators can be clearly illuminated even in strong sunlight and can also be used in the dark, allowing you to read them quickly [6 LED Light Patterns]: With 6 easy-to-read indicators to indicate plug status, easy to judge: OK, Open Ground, Open Neutral, Live/Neutral Reverse, Live/Ground Reverse, Live/Ground Reverse, Ground Missing [Plug & Play]: Designed with RCD/GFCI test button, one click to know the working status of the leakage protector; Perfect to protect your safety against the risk of electric shock [Wide Application]: Widely used for electrical maintenance test, office socket test, power strip test and wall socket test in school, laboratory, factory and other social fields [Electrical Plug Tester]: Advanced plug tester to quickly detect whether the plug wire connection is correct or not; Home improvement acceptance and safety inspection, saves you a lot of time testing for problems with outlets [Bright LED Display]: Light patterns are well labeled on the back of the device; Red LED indicators can be clearly illuminated even in strong sunlight and can also be used in the dark, allowing you to read them quickly [6 LED Light Patterns]: With 6 easy-to-read indicators to indicate plug status, easy to judge: OK, Open Ground, Open Neutral, Live/Neutral Reverse, Live/Ground Reverse, Live/Ground Reverse, Ground Missing [Plug & Play]: Designed with RCD/GFCI test button, one click to know the working status of the leakage protector; Perfect to protect your safety against the risk of electric shock [Wide Application]: Widely used for electrical maintenance test, office socket test, power strip test and wall socket test in school, laboratory, factory and other social fields