Agilent/Keysight 34134A

The Keysight 34134A is an AC/DC DMM current probe that extends the current measurement capabilities of compatible digital multimeters without breaking the circuit. Using Hall sensor technology, this battery-powered clamp-on probe measures low DC or AC currents across industrial and automotive applications - ground currents, power supply ripple, and system current distribution. The narrow jaw design accommodates cable diameters to 11.8 mm, making it well-suited for densely wired environments.

Technical Specifications

• DC Current: 10 mA to 80 A across dual ranges (10 mA–2 A and 100 mA–80 A)


• AC Current: 10 mA to 60 A across dual ranges (10 mA–1.5 A and 100 mA–60 A)


• Bandwidth: DC to 8 kHz (–3 dB)


• Output Signals: 1 V/A and 10 mV/A Accuracy & Noise


• 1 V/A range: ±2% reading ±5 mA (10 mA–2 A DC; 10 mA–1.5 A AC); ±4% reading ±20 mA (500 mA–50 A DC/40 A AC); ±12% reading (50–80 A DC, 0–60 A AC)


• 10 mV/A range: noise 15 µV (DC–1 Hz), 140 µV (1 Hz–10 kHz), 180 µV (0–100 kHz)


• Slew rate: 120 mV/µs (1 V/A); 5.5 mV/µs (10 mV/A)


• Phase shift: 1° (DC–65 Hz) Physical & Environmental


• Dimensions: 67 × 231 × 36 mm; Weight: 330 g (with battery)


• Operating temperature: 0 to 50 °C; Storage: –30 to 80 °C


• Operating humidity: 0 to 85% RH (at 0–50 °C)


• Working voltage: 600 V CAT III


• Case protection: IP20; Mechanical shock: 100 G (IEC 68-2-27); Vibration per IEC 68-2-6 (10–55 Hz, 0.15 mm amplitude)


• Output: Right-angle shrouded banana plugs; 1.5 m cable

Key Features

• Hall sensor–based design eliminates circuit interruption during measurement


• Dual output scaling (1 V/A and 10 mV/A) for flexible integration


• Fiberglass-reinforced polycarbonate housing rated IP20


• Battery-powered operation for portability

Compatibility & Integration Direct compatibility confirmed with Keysight 34460A, 34461A, 34401A, 34410A, 34411A, and L4411A DMM models. Output termination via standard banana plugs enables integration with other instruments accepting analog voltage inputs.