Agilent/Keysight U1251B Handheld Digital Multimeter

## Agilent/Keysight U1251B Handheld Digital Multimeter Technical Overview

The Agilent/Keysight U1251B is a versatile 4.5-digit handheld digital multimeter engineered for comprehensive electrical testing and measurement across diverse industrial and laboratory environments. This instrument provides a robust set of measurement capabilities, including precise voltage, current, resistance, capacitance, frequency, and temperature readings. Its design prioritizes user readability with a large, backlit display suitable for varied lighting conditions, and incorporates significant safety features to ensure reliable operation whether deployed in the field or utilized on a test bench. The Agilent/Keysight U1251B is a dependable tool for engineers, system integrators, and laboratory professionals requiring accurate and repeatable measurements for a wide array of applications.

## Technical Specifications

### Measurement Capabilities
* **DC Voltage:**
* Ranges: 200 mV, 2 V, 20 V, 200 V, 1000 V
* Accuracy: ±(0.05% + 3)
* Resolution: 100 µV
* **AC Voltage (True RMS):**
* Ranges: 200 mV, 2 V, 20 V, 200 V, 750 V
* Accuracy: ±(0.5% + 5)
* Resolution: 100 µV
* Frequency Response: 40 Hz to 20 kHz
* **DC Current:**
* Ranges: 200 µA, 2 mA, 20 mA, 200 mA, 10 A
* Accuracy: ±(0.15% + 5)
* Resolution: 0.1 µA
* **AC Current (True RMS):**
* Ranges: 200 µA, 2 mA, 20 mA, 200 mA, 10 A
* Accuracy: ±(0.7% + 5)
* Resolution: 0.1 µA
* Frequency Response: 40 Hz to 20 kHz
* **Resistance:**
* Ranges: 200 Ω, 2 kΩ, 20 kΩ, 200 kΩ, 2 MΩ, 20 MΩ
* Accuracy: ±(0.2% + 3)
* Resolution: 0.1 Ω
* **Capacitance:**
* Ranges: 2 nF, 20 nF, 200 nF, 2 µF, 20 µF
* Accuracy: ±(1% + 5)
* Resolution: 1 pF
* **Frequency:**
* Ranges: 200 Hz, 2 kHz, 20 kHz, 200 kHz, 2 MHz
* Accuracy: ±(0.1% + 1)
* Resolution: 0.1 Hz
* **Temperature (requires optional probe):**
* Range: -200 °C to 1300 °C (-328 °F to 2372 °F)
* Accuracy: Dependent on probe

### General Specifications
* **Display:** 4.5-digit LCD with backlight
* **Resolution:** 49,999 counts
* **Sampling Rate:** 5 samples per second
* **Battery:** 9V alkaline battery or NiMH rechargeable battery
* **Battery Life:** Up to 150 hours (alkaline)
* **Operating Temperature:** 0 °C to 50 °C (32 °F to 122 °F)
* **Storage Temperature:** -20 °C to 60 °C (-4 °F to 140 °F)
* **Humidity:** 0% to 85% RH, non-condensing
* **Safety Standards:**
* CAT III 1000 V
* CAT IV 600 V
* UL Listed
* CSA Certified

### Features
* **True RMS:** For accurate AC measurements on non-sinusoidal waveforms.
* **Data Logging:** Ability to log measurements for later analysis (internal memory capacity varies).
* **Diode Test:** Measures forward voltage drop across diodes.
* **Continuity Test:** Audible beeper for continuity checks.
* **Relative Mode:** Stores a reference value and displays subsequent measurements relative to it.
* **Min/Max/Average Readings:** Captures and displays minimum, maximum, and average values over a period.
* **Auto Power Off:** Conserves battery life by automatically shutting down the device after a period of inactivity.
* **Backlit Display:** Enhances visibility in low-light environments.
* **Robust Casing:** Designed for durability in demanding environments.

### Interfaces
* **USB:** For data transfer to a PC (requires optional USB interface cable and software).

### Physical Characteristics
* **Dimensions:** (Specific dimensions require confirmation from manual/datasheet)
* **Weight:** Approximately 500 g (1.1 lbs) including battery (Specific weight requires confirmation from manual/datasheet)

### Compatibility
* **Software:** Compatible with Keysight’s PC connectivity software for data logging and analysis.
* **Probes:** Compatible with standard test leads and optional temperature probes (e.g., Type K thermocouple).

Why Choose Aumictech for Agilent/Keysight U1251B?
At Aumictech, we specialize in supplying high-end electrical testing and measurement equipment. Whether you need reliable and accurate DC/AC voltage, current, resistance, capacitance, frequency, or temperature measurements, our team ensures the Agilent/Keysight U1251B delivers maximum performance for your application. We understand the critical nature of precise measurements in engineering and laboratory settings, providing solutions that enhance testing efficiency and data integrity for your procurement needs.