Features Easy Operation for Quick Testing: This portable electrical test pen is designed for simplicity, allowing you to test voltages from AC 12V to 300V with minimal effort NCV Inductive Probe Technology: Utilize the advanced non-contact voltage detection feature by placing the tip near outlets or power cords to instantly know if voltage is present Automatic Breakpoint Detection: The tester accurately identifies live wires or neutral wires, ensuring safety and precision during electrical troubleshooting tasks Dual Color Indicator Lights: The intuitive red and green lighting system clearly indicates voltage levels, with red signifying high voltage and green indicating low or no voltage Adjustable Sensitivity for Versatile Use: Easily customize measurement sensitivity with the S button, making it ideal for a range of applications such as irrigation wiring and more Features: 1、 Type: This is a type electric test pen, easy to operate and convenient to carry. It can bring a lot of help for your work. 2、Operating Procedure: NCV inductive probe for alternating current voltages is applied. Simply place the tip near a terminal strip, outlet or power cord. You can know there is voltage when the tip is red glowing and the tip makes a beeping sound. 3、Breakpoint Testing: The test detector automatically detects wires or neutral wires. for breakpoint testing. 4、Red and Green Lighting: This test pen will beep at a higher frequency. Meanwhile, the screen is red or green, red means high voltage and wires are detected, green means low voltage and empty wires are detected. 5、Scope of Application: More sensitive and flexible measurement. Pr the S button to adjust the sensitivity, and adjust the low range for tat, irrigation wiring, etc. Specification: Item Type: Voltage Tester Pen Model: HT89 Material: ABS Battery: 1.5V AAA battery x 1 (shipping without battery) Use: Electrical parameter detection AC Voltage: 12 - 300V, 50 or 60Hz Measurement Error: ± (5% + 3) Operating Temperature: 0 - 40°C Storage Temperature: -10 - 50℃ Humidity: ≤95% Altitude: ≤2000m Package List: 1 x Voltage Tester Pen(Shipping Without Battery) 1 x Manual Package List 1 x Voltage Tester Pen(Shipping Without Battery) 1 x Manual