Fluke 125B Industrial ScopeMeter Hand Held Oscilloscope (40 MHz)
The compact ScopeMeter® 120B Series is the rugged oscilloscope solution for industrial electrical and electro-mechanical equipment troubleshooting and maintenance applications. It’s a truly integrated test tool, with an oscilloscope, multimeter, and high-speed recorder in one easy-to-use instrument.
The 120B Series integrates with the Fluke Connect® mobile app and FlukeView® for ScopeMeter software to enable further collaboration, data analysis, and archiving of critical test information.
Key Features
- Dual-input: Digital oscilloscope and multimeter
- Bandwidth: 40 MHz or 20 MHz oscilloscope bandwidth
- Digital Multimeters: Two 5,000-count true-rms digital multimeters
- Connect-and-View™: Trigger simplicity for hands-off operation
- IntellaSet™ Technology: Automatically and intelligently adjusts numerical readout based on the measured signal
- Recorder Event Detect: Captures elusive intermittent signals on repetitive waveforms up to 4 kHz
- Trending: Dual-input waveform and meter reading recorder for trending data over extended periods
Measurement Capabilities
- Shielded test leads for oscilloscope, resistance, and continuity measurements
- Resistance, continuity, diode, and capacitance meter measurements
- Power measurements (W, VA, VAR, PF, DPF, Hz)
- Voltage, current, and power harmonics
- BusHealth: Check industrial networks with physical layer tests against defined reference levels
Specifications & Design
- Ruggedness: Withstands 3g vibration, 30g shock, and rated IP51
- Safety: Highest safety rating in the industry: CAT IV 600 V
- Battery: Li-Ion rechargeable battery, seven-hours operation
- Connectivity: External optically isolated USB interface and optional WiFi adapter support
Includes:
- Li-Ion battery pack and charger/power adapter
- 2 shielded test leads with ground leads
- Black test lead, red and blue hook clips
- Banana to BNC adapter
- WiFi USB adapter
- Note: Fluke 120B/S versions also include soft carry case, FlukeView® software, magnetic hanger, and screen protector.

























