Feature: 1. High hardness and good electrical conductivity 2. Maintenance electrical measurement / screwdriver assist 3. Humanized clip design for easy electrical maintenance and portability 4. Fully insulated anti-fall material, durable and improved safety performance 5. Self-checking LED high-brightness bulbs: high-brightness works smoothly and is still clearly visible in the sun Uses: can be used in electronic factories, electrical appliances, car maintenance, household, etc., widely used Function: 1. Neutral line/live line detection: the test result LED red light and green light indicate live line, green light indicates neutral line 2. Detection along the line: LED light on means the line is unblocked, LED light off means the line is disconnected 3. Wire switch: if the plug and the inner core of the wire are intact, the light will be on, and if it is not on, it means that the core wire is in poor contact Specification: TypeVoltage Tester Pen Coloras show Size: About 140x20mm Shell material: ABS Package include1pc Voltage Tester Pen