Status: Current Production
Overview
The Fluke 120B Series is a compact, rugged handheld oscilloscope platform that combines a dual-input oscilloscope, True RMS multimeter, and high-speed recorder in one tool. Designed for industrial electrical and electro-mechanical troubleshooting, the 120B Series features Connect-and-View™ automatic triggering, IntellaSet™ intelligent measurement detection, and Recorder Event Detect for capturing intermittent faults. All models integrate with Fluke Connect® for wireless data sharing and FlukeView® software for PC-based analysis.
Specifications
| Parameter | Value |
|---|---|
| Bandwidth | 20 MHz (123B) / 40 MHz (124B, 125B) |
| Channels | 2 isolated inputs |
| Sample Rate | 25 MS/s |
| Safety Rating | CAT III 600 V / CAT IV 300 V |
| Display | Color LCD |
| Key Features | Connect-and-View™ triggering, IntellaSet™, Recorder Event Detect, microSD memory, power measurements (125B), bus health testing (125B) |
Models We Repair
Select your model below to request a repair. If your exact model isn’t listed, choose the closest match — the evaluation and repair process is the same across all Fluke 120B Series configurations.
| Model | Description | Service |
|---|---|---|
| Fluke 123B | 20 MHz, 2-channel, dual-input scope and meter with recorder | Request Repair |
| Fluke 123B/S | 123B with SCC120B carrying case and FlukeView software kit | Request Repair |
| Fluke 124B | 40 MHz, 2-channel with VPS41 10:1 voltage probe | Request Repair |
| Fluke 124B/S | 124B with SCC120B carrying case and FlukeView software kit | Request Repair |
| Fluke 125B | 40 MHz, 2-channel with power measurements, bus health, and harmonics | Request Repair |
| Fluke 125B/S | 125B with SCC120B carrying case and FlukeView software kit | Request Repair |
Common Fluke 120B Series Failures We Repair
- Input channel damage from overvoltage events during motor drive or power testing
- Battery cell degradation reducing field operating time below usable levels
- Display pixel fading or backlight failure from thermal cycling in industrial environments
- Trigger circuit faults causing unstable or missing waveform captures
- MicroSD card slot connector wear from repeated insertion cycles
Our technicians perform component-level diagnostics on every Fluke 120B Series unit. We don’t just replace boards — we identify and repair the specific failed components, saving you the cost of full module replacements when possible.
Calibration
Every Fluke 120B Series repair includes NIST-traceable calibration. We verify bandwidth response, timebase accuracy, vertical accuracy across all input channels, trigger sensitivity, and multimeter functions. You receive a detailed calibration certificate documenting measured performance against Fluke’s published specifications.
Who Uses the Fluke 120B Series?
The Fluke 120B Series Industrial ScopeMeter Handheld Oscilloscopes are used by industrial electricians, automation technicians, HVAC system troubleshooters, field service engineers, and vocational training programs.
Our Repair Process
- Ship Your Instrument: Send your Fluke 120B Series to our facility from anywhere in the US. We provide prepaid shipping labels on request.
- Free Evaluation: Our technicians perform a complete diagnostic assessment and provide a firm, no-obligation repair quote.
- Expert Repair: Upon approval, we perform component-level repair using OEM-grade parts.
- NIST-Traceable Calibration: Full calibration with documented results across all critical parameters.
- Return Shipment: Your instrument is securely packaged and returned with calibration certificate, repair documentation, and our 90-day warranty.
Request a Repair
Contact us for professional Fluke 120B Series repair and calibration. Our team is ready to evaluate your instrument and provide a no-obligation quote.
Email: info@junecompany.com | All repairs include a 90-day parts and labor warranty.
