FS1S Digital Voltage Tester Pen - Multi-Purpose Measuring Device

Product Description

The FS1S Digital Voltage Tester Pen is a device that precisely performs measurements such as voltage, resistance, capacitance and frequency in electrical systems. With its compact, portable design and wide range of functions, it is designed to meet the needs of both professionals and hobby users. It also offers safe, easy use with NCV (Non-Contact Voltage detection) and diode test features.

Technical Specifications

AC/DC Voltage Measurement

• Range: 0.6V - 600V
• Accuracy: ±(0.5%+3)
• Resolution: 0.001V - 0.1V
• Overvoltage Protection: 600V DC or AC

Resistance Measurement

• Range: 6kΩ - 60MΩ
• Accuracy: ±(1.2%+3) - ±(2.5%+3)
• Resolution: 1Ω - 10kΩ

Capacitance Measurement

• Range: 100nF - 2mF
• Accuracy: ±(3.5%+20)
• Resolution: 0.1nF - 1μF

Frequency Measurement

• Range: 0.1Hz - 100kHz
• Accuracy: ±(2.0%+3)

Functions

• NCV (Non-Contact Voltage Detection): Live wire detection in electrical cables.
• Continuity Test: Buzzer alert to detect faulty connections or short circuits.
• Diode Test: Checks whether diodes are working correctly with a 3V open-circuit voltage.
• Auto Ranging: Automatically selects the appropriate range for the measurement type.
• LED Light: Makes measuring in dark areas easier.
• Auto Power-Off: The device switches itself off when not in use to save energy.

Instructions for Use

• Switching On: Press and hold the power button for about 2 seconds to switch the device on.
• Selecting Measurement Mode: Press the function button to select voltage, resistance, capacitance or frequency measurement modes.
• Connecting Test Leads: Connect the black test lead to the "COM" port and the red test lead to the relevant port, then touch the test point.
• Viewing Results: Measurement results are displayed instantly on the digital screen.
• NCV Function: You can detect a live wire by bringing the tip of the device close to the cable.

Warnings and Safety Precautions

• Before measuring capacitance, make sure all capacitors are fully discharged.
• Input voltage must not exceed 600V; otherwise the device may be damaged.
• Do not touch metal parts during live wire testing to avoid electric shock.
• After measuring, disconnect the test leads from the device for safety.

Box Contents

• FS1S Digital Voltage Tester Pen
• Test Leads
• User Manual
• 2 AAA Batteries