Tired of missing a fault because your test tool is too big or too slow? The Fluke FLUKE-125B/NA, 40MHz Industrial ScopeMeter handheld Oscilloscopes gives you a full-size oscilloscope in a pocket-friendly case. It lets you see waveforms, measure power and run diagnostics wherever you work. If you need reliable data on a noisy factory floor, this device solves that problem fast.
Fluke FLUKE-125B/NA, 40MHz Industrial ScopeMeter handheld Oscilloscopes
Many technicians struggle with bulky bench scopes that cannot survive a rugged environment. The lack of portability forces them to guess, which can lead to costly downtime. This handheld scope removes that barrier. It offers the same bandwidth and accuracy as a lab instrument, but with a durable case, battery power and easy-to-read screen. You get clear waveforms, power analysis and network health checks in one compact tool.
Key Features
- 5.7-inch color TFT display with 640 x 480 resolution.
- Two analog channels with 5 mV to 200 V/div sensitivity.
- Real-time sampling up to 40 MS/s and equivalent 4 GS/s.
- Input range 600 Vrms CAT IV, 750 V max for safety.
- Roll mode from 1 s/div to 60 s/div for long capture.
- Multiple trigger modes including auto Connect-and-View.
- Integrated DMM functions: voltage, current, resistance, continuity, diode, capacitance, frequency.
- Power analysis: watts, VA, VAR, power factor, demand-factor.
- Harmonic measurement for voltage, current and power.
- Optically isolated USB and optional Wi-Fi for data transfer.
- Bus Health Test for industrial network diagnostics.
- Rechargeable Li-ion battery with typical 7-hour runtime.
Specifications
| Model |
FLUKE-125B/NA |
| Part Number |
4755829 |
| Series |
Fluke 120B Series Industrial ScopeMeter |
| Display |
5.7-inch color active matrix TFT |
| Resolution |
640 × 480 |
| Bandwidth (Oscilloscope) |
DC to 40 MHz (-3 dB) |
| Channels |
2 analog channels |
| Sampling Rate |
Up to 40 MS/s (real-time) |
| Equivalent Sampling Rate |
Up to 4 GS/s |
| Input Impedance |
1 MΩ // ~20 pF |
| Sensitivity |
5 mV to 200 V/div |
| Max Input Voltage |
600 Vrms CAT IV / 750 V max |
| Rise Time |
< 8.75 ns |
| Timebase Range |
1 µs/div to 5 s/div |
| Roll Mode |
1 s/div to 60 s/div |
| Trigger Modes |
Normal, Single, Roll; Connect-and-View™ auto trigger |
| DMM Functions |
Voltage, current, resistance, continuity, diode, capacitance, frequency |
| Power Measurements |
W, VA, VAR, PF, DPF |
| Harmonics |
Voltage, current, power harmonics supported |
| Recorder Mode |
Dual-input waveform + trend recorder |
| Memory |
Internal memory + optional external storage (config dependent) |
| Interfaces |
Optically isolated USB, optional WiFi adapter |
| Bus Health Test |
Industrial network physical layer diagnostics |
| Safety Rating |
CAT IV 600 V / CAT III 1000 V |
| IP Rating |
IP51 |
| Operating Temperature |
0 °C to 50 °C |
| Storage Temperature |
-20 °C to 60 °C |
| Operating Altitude |
2000 m (derating above) |
| Weight |
~1.4 kg (with battery) |
| Dimensions |
259 × 132 × 55 mm |
| Battery Type |
Rechargeable Li-ion pack |
| Battery Runtime |
~7 hours (typical, with BP290 pack) |
| Included Accessories (NA kit) |
Test leads, probes, i400s current clamp, power adapter/charger,
USB/WiFi adapter (kit dependent)
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