Comidox 1Pcs Logic Tester Pen 5V 3.3V Level Tester Logic Pulser Analyzer Detecting Probe Digital Circuit Debugger Convenient and Fast Learning Board Tool

Note: Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. Real colors may slightly differ from the pictures, as it depends on specific monitor settings and light brightnes. Package Includes: 1Pcs About this item This is a logic test pen 5v 3.3v. You can measure the liquid level without using a multimeter Medium size, suitable for handheld use; Elastic probe for easy measurement DuPont wired power supply, development board, and learning board essential tools There are three status displays: high/low level, and high resistance (disconnected) High and low levels (when VCC=5V):Red light (high level) - above 2.4V,Green light (low level) – lower 06V,Blue light - 0.6-2.4V or disconnected See more product details