Agilent/Keysight U1241AN

The Agilent/Keysight U1241AN is a 10,000-count handheld digital multimeter engineered for field electrical and electronic testing. It delivers true RMS measurements across AC voltage and AC current, ensuring accuracy on non-sinusoidal waveforms. The dual-display design pairs a primary 4-digit LCD (11,000-count maximum) with a secondary readout for ambient temperature via K-type thermocouple. Safety compliance meets CAT III 1000 V and CAT IV 600 V overvoltage protection per IEC 61010-1 2nd Edition.

– Technical Specifications

Display & Power
• 4-digit LCD, 11,000-count maximum, 10,000-count resolution
• Adjustable backlight (2 intensity levels)
• Battery: 4 × 1.5 V AAA (Alkaline or Zinc Chloride)
• Auto power-off indicator

Voltage & Current Measurement
• DC voltage: 0.1 mV to 1000 V (±0.09% + 5 digits accuracy)
• AC voltage: 0.1 mV to 1000 V, true RMS (±1% + 5 digits at 40–500 Hz; ±2% + 5 digits at 500 Hz–1 kHz)
• DC current: 0.1 µA to 10 A (±0.1% + 3 digits)
• AC current: 0.1 µA to 10 A, true RMS (±1% + 5 digits at 40–500 Hz; ±1.5% + 5 digits at 500 Hz–1 kHz)

Impedance & Frequency
• Resistance: 0.1 Ω to 100 MΩ
• Capacitance: 0.1 nF to 10 mF
• Frequency measurement: up to 200 kHz

Temperature & Diagnostics
• K-type thermocouple: -40 °C to 1000 °C with selectable 0 °C compensation
• Continuity test (audible buzzer < 10.0 Ω)
• Diode test (0.3–0.8 V forward bias indicator)
• Switch counter supported

Environmental
• Operating: -10 °C to 55 °C (full accuracy); up to 80% RH at ≤30 °C, decreasing to 50% RH at 55 °C
• Storage: -40 °C to 70 °C
• Altitude: up to 2000 m per IEC 61010-1 2nd Edition; Pollution Degree 2

– Key Features

• True RMS for AC voltage and current on non-sinusoidal signals
• Dual-display design with independent temperature monitoring
• Audible indication for continuity and diode junction status
• Field-rated overvoltage protection at two safety categories
• Extended resistance range to 100 MΩ with null calibration

– Typical Applications

• General-purpose bench and field electrical troubleshooting
• HVAC system diagnostics and thermal monitoring
• Industrial equipment maintenance and commissioning
• Portable appliance testing in variable environments

– Compatibility & Integration

The U1241AN operates independently with standard AAA battery power. K-type thermocouple jacks enable direct temperature probe integration. No external power or software integration required.