The Keysight U1272A is a True RMS handheld digital multimeter engineered for field technicians and maintenance professionals who require precise measurements across industrial and electrical applications. This 4.5-digit instrument delivers 30,000-count dual display resolution with analog bar graph visualization, supporting DC voltage accuracy to 0.05% and AC voltage accuracy of 0.7%. Built for durability, it carries an IP54 rating for water and dust resistance and survives drops up to 10 feet.
Technical Specifications
Display & Resolution:
• 30,000-count dual display with analog bar graph
• DC voltage accuracy: 0.05%
• AC voltage accuracy: 0.7%
Measurement Ranges:
• DC Voltage: 30 mV to 1000 V
• AC Voltage: 30 mV to 1000 V
• DC Current: 300 µA to 10 A (20 A for 30 seconds)
• AC Current: 300 µA to 10 A (20 A for 30 seconds)
• Resistance: 30 Ω to 300 MΩ
• Capacitance: 10 nF to 10 mF
• Frequency: 100 Hz to 10 MHz
• Temperature: -200°C to 1372°C (Type K thermocouple)
Measurement Functions:
AC/DC voltage and current, resistance, capacitance, frequency, temperature, continuity with audible beeper and visual backlight, diode testing with auto-diode function, and duty cycle.
– Key Features
True RMS measurement ensures accurate readings on non-sinusoidal waveforms. Low Pass Filter (LPF) attenuates high-frequency noise and harmonics for VFD troubleshooting. ZLOW operates at 2 kΩ input impedance to suppress stray voltages from capacitive or inductive coupling. Smart Ω minimizes leakage-current artifacts in in-circuit resistance measurements. Qik-V detects AC/DC voltage presence without mode selection. Peak Detection captures transients to 250 µs. Smooth Function stabilizes fast-changing signal readouts.
Ergonomic one-handed operation accommodates gloved use. Data logging stores up to 100 manual readings or 10,000 auto/event readings. Optional PC connectivity enables external data management.
– Safety Rating
CAT IV 600 V and CAT III 1000 V overvoltage protection.
– Typical Applications
Variable Frequency Drive diagnostics, in-circuit component testing, transient signal capture, industrial equipment troubleshooting, and field electrical maintenance.

















