RD UM25 for APP USB 2.0 Type-C LCD Voltmeter Ammeter Voltage Current Meter Battery Charge USB Tester （Without Communication Version） DC Motor Drive Module 2 Channel Reversing PWM Speed Dual H Bridge Stepper Controller The OC variant is ideal

The OC variant is ideal for users seeking plug-and-play performance improvement without technical expertise

Dynamic Animation Engine: Pre-programmed effects including wave

5mm or 4mm (model dependent) Motor Diameter 25mm Typical No-Load Speed 100 to 300 RPM (varies with gear ratio) Typical Stall Torque 0

0 WiFi-Bluetooth IOT Development Board online at The Engineer Store

RD UM25 for APP USB 2.0 Type-C LCD Voltmeter Ammeter Voltage Current Meter Battery Charge USB Tester （Without Communication Version） DC Motor Drive Module 2 Channel Reversing PWM Speed Dual H Bridge Stepper Controller The OC variant is idealRD UM25 for APP USB 2. 0 Type C LCD Voltmeter Ammeter Voltage Current Meter Battery Charge USB Tester Without Communication Version The RD UM25 is a professional grade USB power meter designed to measure voltage, current, power consumption, and energy capacity across USB Type C and USB 2. 0 connectors with high precision LCD display output. Electronics engineers, battery technicians, and product developers rely on this tester to diagnose charging