OWON OW18B 3-in-1 Smart Bluetooth Digital Multimeter
- data-logger + multimeter + temperature meter
- BLE 4.0 module supports wireless data transmission
- 3 5/6 – digit full scale reading
- true RMS, and auto-scale function
- super- portability
- flashlight function
- NCV (non-contact voltage) sensing supported
- smart voice-reading
- multi-device monitoring onto one display (via mobile app)
- via CHART mode, the change trend analysis accessible
- offline recording function (upto 7 days’ non-stop recording supported)
- multi-OS compatible: Android OS, iOS, and Windows OS*
- Estimated Delivery : Up to 4 business days
- Free Shipping & Returns : On all orders over $200
OWON OW18B 3-in-1 Smart Bluetooth Digital Multimeter
The OWON OW18B is a versatile and feature-rich digital multimeter designed for professionals and enthusiasts alike. This 3-in-1 device functions as a multimeter, thermometer, and data logger, providing comprehensive measurement capabilities in a single tool. Equipped with Bluetooth 4.0 wireless transmission, it allows for seamless connection to Android, iOS, and Windows devices, enabling real-time data monitoring and analysis. The multimeter boasts a 5999-count display with True RMS measurement, ensuring accurate readings across various electrical parameters. Its non-contact voltage (NCV) detection enhances safety during measurements, while the built-in flashlight aids in low-light conditions. With offline recording functionality, users can store data for up to 7 days and later upload it for analysis.
🔑 Key Features
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3-in-1 Functionality: Combines multimeter, thermometer, and data logger capabilities.
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Bluetooth 4.0 Connectivity: Supports wireless data transmission to mobile devices.
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True RMS Measurement: Ensures accurate AC voltage and current readings.
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Non-Contact Voltage (NCV) Detection: Enhances safety by detecting live wires without direct contact.
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Offline Data Logging: Stores measurement data for up to 7 days for later analysis.
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Large 5999-Count Display: Provides clear and precise readings.
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Temperature Measurement: Measures temperatures from -50°C to +400°C.
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Flashlight Function: Illuminates work areas in low-light conditions.
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Multi-Device Monitoring: Allows multiple OW18B units to connect to a single mobile device for simultaneous monitoring.
📊 Specifications
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Display: 5999-count LCD with backlight.
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Voltage Measurement:
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DC: 0.1 mV to 1000 V.
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AC: 1 mV to 750 V.
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Current Measurement:
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DC: 0.01 µA to 20 A.
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AC: 0.01 mA to 20 A.
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Resistance Measurement: 0.1 Ω to 60 MΩ.
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Capacitance Measurement: 0.01 nF to 60 mF.
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Frequency Measurement: 0.001 Hz to 10 MHz.
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Temperature Measurement: -50°C to +400°C.
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Data Logging: Stores up to 7 days of measurement data.
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Bluetooth Connectivity: BLE 4.0 wireless transmission.
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Safety Rating: CAT IV 600V, CAT III 1000V.
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Dimensions: 190 x 90 x 56 mm.
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Weight: Approximately 0.30 kg.
🛠️ Applications
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Electrical Troubleshooting: Ideal for diagnosing issues in electrical circuits and components.
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HVAC Systems: Suitable for testing and maintaining HVAC control systems.
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Industrial Equipment: Perfect for servicing industrial equipment and machinery.
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Educational Use: Great for teaching and learning about electrical measurements and concepts.
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DIY Projects: Perfect for hobbyists working on various electronic projects.

















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