The Keysight U1273AX is a rugged, handheld digital multimeter designed for demanding industrial environments, offering True RMS measurements and a 30,000-count resolution. It features an OLED display for clear readability in various lighting conditions and is built to withstand extreme temperatures and harsh weather. The U1273AX is equipped with a range of measurement functions and intelligent features to enhance productivity and safety.
### Technical Specifications
**General Measurement Capabilities:**
* **Display:** OLED with 2000:1 contrast ratio and 160° wide viewing angle.
* **Display Count:** 30,000 counts (4.5 digits).
* **True RMS:** Yes (AC+DC measurements).
* **Functions:** DC Voltage, AC Voltage, DC Current, AC Current, Resistance, Capacitance, Frequency, Diode Test, Continuity Test, Temperature.
* **Auto Ranging:** Yes.
* **Manual Ranging:** Yes.
**Electrical Specifications:**
* **DC Voltage:**
* Range: 30 mV to 1000 V.
* Basic Accuracy: 0.05% + 2 counts.
* **AC Voltage:**
* Range: Up to 1000 V.
* Basic Accuracy: 0.7% + 20 counts.
* **DC Current:**
* Range: Up to 10 A.
* Basic Accuracy: 0.3% + 10 counts.
* **AC Current:**
* Range: Up to 10 A (20 A for 30 seconds).
* Basic Accuracy: 1.0% + 25 counts.
* **Resistance:**
* Range: Up to 100 MOhms.
* **Capacitance:**
* Range: 0.01 µF to 10,000 µF.
* **Frequency:**
* Range: 99.999 Hz to 999.99 kHz.
* **Temperature:**
* Measurement capability for J and K-Type thermocouples.
**Advanced Features:**
* **Low Pass Filter (LPF):** 1 kHz LPF for accurate Variable Frequency Drive (VFD) output measurements, eliminating high-frequency noise and harmonics.
* **Low Impedance Mode (ZLOW):** Dissipates stray voltages to eliminate false readings and improve safety.
* **Smart Ohm:** Minimizes false readings due to leakage current.
* **Peak Detect:** Captures transients as fast as 250 µs, suitable for motor startup.
* **Min/Max Recording:** Records minimum and maximum readings.
* **Hold Function:** Freezes the present reading.
* **Null Function:** Allows for reference measurements.
* **Scale Function:** Adjusts displayed readings.
* **Continuity Indication:** Both visual (backlight) and audible alerts for continuity.
* **Overvoltage Protection:** CAT III 1000V and CAT IV 600V.
**Data Logging and Connectivity:**
* **Internal Logging Memory:** 10,000 points.
* **PC Connectivity:** Via optional IR-to-USB cable (e.g., U1173A).
* **Bluetooth Connectivity:** Optional via U1177A or U1117A Bluetooth adapter, compatible with Keysight Mobile Meter and Mobile Logger applications for iOS and Android devices.
### Environmental and Physical Characteristics
* **Operating Temperature:** Down to -40°C (suitable for extreme weather).
* **Operating Altitude:** Up to 3000 meters (3 km) above sea level.
* **Ingress Protection:** IP54 rated for water and dust resistance.
* **Durability:** Rugged design for demanding industrial applications.
* **Ergonomics:** Non-slip, ergonomic shape for comfortable handling, with gloves on or off.
* **Display Readability:** OLED display with high contrast and wide viewing angles, suitable for poorly lit environments.
### Compatibility
* **Power Source:** Four 1.5 V AAA batteries.
* **Software:** Keysight GUI Data Logger Software, Keysight Mobile Meter and Mobile Logger applications (iOS/Android) when using Bluetooth adapter.
* **Accessories:** Compatible with optional U1177A/U1117A Bluetooth adapter, U1173A IR-USB cable, K-type thermocouple and adapter.
### Why Choose Aumictech for Keysight U1273AX?
At Aumictech, we specialize in supplying high-end electrical test and measurement equipment. Whether you need accurate readings in extreme environments, reliable troubleshooting of industrial systems, or robust connectivity for data logging, our team ensures the Keysight U1273AX delivers maximum performance for your application.

















