Me-95+ Mario 60W Hot Melt Glue Gun The Me-95+ Mario 60W Hot Melt Glue Gun heats up quickly in 3-5 minutes and is made with durable, heat-resistant plastic. It has a built-in fuse to prevent overheating and damage. The gun saves 50% of electricity with its efficient and constant temperature, making it energy-saving. It is designed for long-lasting use, providing a reliable solution for all your gluing needs.

MetroQ MTQ 666 Digital AC Clamp Meter This is a MetroQ MTQ 666 Digital AC Clamp Meter. This industrial clamp meter features True RMS providing accurate measurements on any type of load. The MTQ 666 comes with a 4000-count display to provide a wide display range for any application. Applications: Motor or line current Control voltage or system board voltage checks Circuit continuity or specified resistance Flame safe guard Quick check of live wires Diode malfunctions/unbroken paths

MetroQ MTQ 677 400A AC Clamp Meter The MetroQ MTQ 677 400A AC Clamp Meter is a manual range AC clamp meter, it can be used to measure AC/DC voltage and AC current. Also you can use it to measure resistance & continuity test.

MetroQ MTQ 679 600A Auto Smart Clamp Meter Digital AC Clamp Meter, 6000 Counts Auto range AC & DC Voltage upto 600V AC Current: 0.1A to 60A to 600 Amp TRMS Jaw Size 24mm Frequency, Resistance, Capacitance, Continuity, NCV (Non Contact Voltage Detector) It Cannot Measure DC Current.

MetroQ MTQ 997 600A Digital Clamp Meter MetroQ MTQ-999 Digital AC/DC Clamp Meter 1000 A 750 V is a premium quality product from MetroQ. These meters are characterized at full range over current protection, ow power consumption, stable performance and anti-dropping capacity. With original design double display. These meters can be wide y used in home, school, smelting, communications, manufacturing, petroleum refining industry, national defense, electricity and chemical industry.

MetroQ MTQ 999 AC/DC Clamp Meter MetroQ MTQ 999 Digital AC Clamp Meter is a rugged, heavy-duty True RMS clamp meter with AC Current measurement from 0 – 1000 A. It is used to AC/DC Voltage, Resistance, Capacitance, Frequency, Duty Cycle and Temperature. It also performs Diode and Continuity Test. This CEM Clamp Meter comes with 3 5/6 digits (6000 Counts) Backlit LCD display that gives clear and accurate readings. The data hold function freezes the displayed data for users to get a clear and accurate reading. It comes with low battery indication and auto power-off function that helps in extending the battery life. This 1000 A Digital AC Clamp Meter is a non-contact voltage detector that shows the presence of live wires. It also has a relative measurement facility. The ergonomic design of this clamp meter enhances user comfort and ease of use. Application: These meters can be widely used in home, school, smelting. Communications, manufacturing, petroleum refining industry. National defense, electricity and chemical industries.

MetroQ MTQ1515 DDS Signal / Function Generator with Counter with USB- 15 Mhz Arbitrary Waveform Generator adopts large scale FPGA integrated circuit and high-speed MCU microprocessor. The internal circuit adopts the active crystal oscillator as the benchmark. So the signal stability is greatly strengthened. Using Dual-channel DDS signal and TTL electric level output to generate precise, stable, low distortion output signal. includes Sine wave, Square wave, Triangle wave, Saw tooth wave, Pulse wave, white noise, user-defined waveform etc. each channel can be independently set the parameters. With linear sweep(Max. up to 999.9s) and logarithmic frequency sweep functions. Has a frequency measurement, period measurement, positive and negative pulse width measurement and counting function. Storage feature: You can store 99 groups instrument state parameters set by the user, can be called up to Reproduce. The frequency output of Sine wave can be up to 15MHz. 200MSa/s sampling rate. It has 60 positions for saving user-defined waveform. Waveform Length of each one is 2048 and vertical resolution is 14 bits This Signal Generator is the ideal instrument for electronic engineering, laboratories, production lines, teaching and scientific research. Key features: Uses advanced FPGA and a speedy microprocessor. Ensures signals are steady and reliable with active crystal oscillator. Generates a wide range of waveforms, including sine, square, triangle, sawtooth, and pulse waves. Features two independent channels to set different parameters. Measures frequency, period, pulse width, and even counts pulses. You can store up to 99 different setups and 60 custom waveforms. And each with a resolution of 2048 points and 14-bit detail. Handles sine wave frequencies up to 15 MHz, with the same range for square and triangle waves. Handles pulse frequencies up to 6 MHz. Offers both linear and logarithmic frequency sweeps, up to 1,000 seconds.

MG811 Carbon Dioxide Sensor MG-811 Carbon Dioxide Sensor Module (Carbon dioxide sensor) is a carbon dioxide sensor (CO2) sensor that is a Metal Oxide Sensor sensor, which must heat the tank to the specified level. (With the method of supplying power) will cause heat vapor and separate CO2 from the air.  This sensor module has an MG-811 onboard as the sensor component. A signal output circuit for heating the sensor The MG-811 is highly sensitive to CO2 and less sensitive to alcohol and CO. The output voltage of the CO2 increases. Useful for greenhouses and medical projects.  Sends an analog signal that decreases as the concentration of CO2 increases. This module also includes a digital output pin with TTL output. The Potentiometer on board is used to set the Digital Output Setpoint.  After setting the potentiometer threshold, once that threshold is reached, an LED on the sensor will illuminate and the digital pin will give a HIGH voltage signal. Features: High Sensitivity to CO2: Detects even low concentrations of carbon dioxide. Analog Voltage Output: Provides a variable voltage output corresponding to CO2 levels. On-board Heating Circuit: Maintains optimal sensor temperature for accurate readings. Signal Conditioning Circuit: Amplifies the output signal for better accuracy. Rapid Response and Recovery Time: Quickly detects changes in CO2 levels. Operating Voltage: Typically operates at 6V. Applications: Air Quality Control Ferment Process Control Room Temperature CO2 concentration Detection Controlling environment horticulture Process control Pinout: VCC: 6V ( You can use a 4 AA battery holder for this ). AOUT: Analog Output (voltage decreases as CO2 Levels increase). DOUT: Digital Output that goes HIGH when the threshold is reached (set the threshold by turning the onboard potentiometer). GND: 0V.

MH-Z19 Infrared CO2 Gas Sensor Module for CO2 Monitor The MH-Z19 Infrared CO2 Gas Sensor Module is a compact, high-performance sensor designed for accurate detection of carbon dioxide (CO?) levels in the air. Utilizing Non-Dispersive Infrared (NDIR) technology, it offers excellent selectivity and does not rely on oxygen, making it highly reliable for long-term use. This infrared gas module comes with a built-in temperature sensor for automatic temperature compensation and provides both digital and analog voltage outputs for versatile integration. Engineered with precision optical and electronic circuit design, the MH-Z19 infrared gas module is perfect for applications such as HVAC systems, refrigeration, and indoor air quality monitoring, ensuring a stable and responsive CO? sensing solution. Features: High sensitivity and high resolution. Low energy consumption. Output modes include UART and PWM wave. Temperature adjustment and great linear output. Good stability. Long lifetime. Anti-interference with water vapor. No poisoning occurred.

MicroROS Self-balancing Car Robot Support 4KG Load Vision Kit The MicroROS Self-balancing Car Robot Support 4KG Load Vision Kit is an advanced Self-balancing Car designed for learning, research, and real-world robotics applications. Built on a powerful STM32 + ESP32 dual-processor architecture, it features a sturdy metal chassis, high-power DC motors, and a 6-axis IMU sensor to deliver stable and precise balancing performance. With support for up to 4 kg load, this Self-balancing two wheel Car can easily handle slopes, obstacles, and dynamic movements while maintaining excellent control and responsiveness. Integrated with MicroROS and ROS2, the robot supports advanced functions such as SLAM mapping, navigation, and AI vision interaction. The Vision Kit includes TOF laser lidar and a ROS-WiFi camera module, enabling real-time obstacle avoidance, autonomous navigation, and visual recognition. An onboard OLED displays live data, while free mobile apps allow remote control and mapping. Ideal for students, educators, and robotics enthusiasts, this Self-balancing Car bridges hands-on hardware learning with powerful ROS-based software development in a single, expandable platform Basic Function The 6-axis IMU enables posture recognition, automatically starting the balance system when placed on the ground and safely shutting it down when lifted vertically. The self-balancing car supports up to 4 kg load, thanks to its sturdy multi-layer structure and high-torque encoder motor, allowing DIY expansion and accessories. With a powerful balance control system, the robot can smoothly climb slopes of up to 30° while maintaining stability. Ultrasonic sensors enable intelligent obstacle avoidance and target following, with easy switching between both modes during operation. The onboard OLED display shows real-time data such as operating mode and battery voltage for quick status monitoring. Equipped with ESP32 + STM32 Dual Processors The ESP32 communication board uses the ESP32-S3-WROOM-1U-N4R2 chip to support MicroROS wireless communication. It enables real-time transmission of data from multiple sensors—such as motors, gyroscopes, and LiDAR—to the virtual machine ROS master, ensuring fast and stable communication between the robot chassis and the ROS system. The STM32 control board , powered by the STM32F103RCT6 chip, is responsible for precise motor driving, gyroscope data processing, and motor encoder feedback. This ensures stable self-balancing performance and accurate motion control. The board also provides onboard expansion interfaces, supporting a wide range of peripheral connections for future upgrades. Hardware Features High-performance TOF Laser LiDAR (T-mini Plus) for fast, accurate indoor and outdoor mapping with up to 12 m range and strong light resistance ROS-WiFi camera module (AI Vision) enables real-time image streaming and AI processing with OpenCV and MediaPipe support High-precision encoder DC motors with AB phase Hall encoders deliver stable balancing, accurate speed feedback, and smooth motion control Durable metal self-balancing chassis with 2 mm thick construction ensures strength, stability, and reliable performance under load Features: Self-balancing two-wheel robot with support for up to 4 kg load STM32 + ESP32 dual-processor architecture for stable control and wireless communication Integrated MicroROS and ROS2 support for SLAM, navigation, and AI applications TOF laser LiDAR and ROS-WiFi camera for obstacle avoidance and visual recognition 6-axis IMU enables accurate posture recognition and balance control Capable of climbing slopes up to 30° with powerful DC motors Ultrasonic obstacle avoidance and target following modes Onboard OLED display for real-time status and voltage monitoring Free mobile apps for remote control and mapping Modular design with expansion interfaces for DIY learning and upgrades