GVDA GD188 3 in 1 Multimeter Combining a Digital Oscilloscope, Signal Generator

GVDA GD188 3-in-1 Digital Oscilloscope combines the functionality of an oscilloscope, multimeter, and signal source into one compact and portable device. With its high-speed sampling, wide measurement range, and advanced features, it is ideal for professional and DIY electronics testing and troubleshooting.

Product Features

• High-Speed Sampling: Features a 50Msps high-speed sampling chip and 12MHz analog bandwidth for precise measurements.
• Waveform Analysis: One-key voltage waveform viewing with automatic, conventional, and single scanning modes.
• Signal Source Output: Generates sine, triangle, and square waveforms with adjustable frequency and amplitude.
• Environmentally Friendly: Powered by a replaceable 18650 lithium battery, offering long battery life.
• Data Storage: Stores 100 sets of multimeter data and 10 oscilloscope waveforms.
• Advanced Multimeter Functions: Includes voltage, current, resistance, capacitance, frequency, and duty cycle measurements, as well as diode and continuity testing.
• Auto/Manual Range Switching: Displays real-time and stored data on a 2.4-inch color LCD screen.
• Safety and Reliability: Dual fuse protection, panel calibration, and automatic power-off after 15 minutes of inactivity.

Specifications

General Parameters

• Display: 240x320 color screen
• Observation Area: 49.0x36.7mm
• Battery: 18650 lithium battery (1500mAh)
• Operating Current: Multimeter: ~80mA, Oscilloscope: ~300mA
• Automatic Sleep: After 15 minutes of inactivity
• Operating Environment: 0°C~+40°C; <75% RH
• Product Size: 83x160x32mm
• Product Weight: 250g
• Charging: 5V/1A, Type-C

Oscilloscope Parameters

• Analog Bandwidth: DC~8MHz (50mV/div~200mV/div), DC~12MHz (500mV/div~20V/div)
• Sampling Rate: 50Msps
• Vertical Sensitivity Range: 500mV~200V/div
• Time Base Range: 200ns~10s/div
• Trigger Edge: Rising/Falling
• Automatic Measurements: Vp-p, Vavg, Vrms, Hz

Signal Source Parameters

• Sine Wave Frequency: 100Hz~100kHz
• Square Wave Frequency: 100Hz~20kHz
• Triangular Wave Frequency: 100Hz~50kHz
• Output Amplitude: Adjustable (0Vpp to 3Vpp)

Multimeter Parameters

• DC Voltage: 60mV~1000V
• AC Voltage: 60mV~750V
• DC Current: 600μA~10A
• Resistance: 600Ω~60MΩ
• Capacitance: 99.99nF~99.99mF
• Frequency: 1Hz~20MHz
• Diode/Continuity Testing: Open circuit voltage ~2.8V

Package Contents

• 1x Oscilloscope
• 1x Test Pen
• 1x Cloth Bag
• 1x User Manual

Usage

GVDA GD188 3-in-1 Digital Oscilloscope is perfect for electronics engineers, technicians, and hobbyists who require a versatile and portable device for signal analysis, circuit diagnostics, and general electronics measurements.