Agilent/Keysight U1281A Handheld Digital Multimeter

The Keysight U1281A is a rugged, handheld digital multimeter engineered for demanding industrial and field applications, offering robust construction and high-precision measurements. This instrument is designed to withstand harsh environmental conditions, making it suitable for troubleshooting and maintenance tasks in various sectors. Its durability, coupled with advanced measurement capabilities, ensures reliable performance where it matters most.

### Technical Specifications

**General Features:**
* **Display:** 4½ digit backlit LCD
* **Display Count:** 60,000 counts
* **True RMS:** Yes
* **Data Logging:** Yes, internal memory capable of storing 10,000 readings
* **Connectivity:** Infrared (IR) port for PC connectivity via optional IR-to-USB cable or IR-to-Bluetooth adapter
* **Programmability:** Capable of remote operation and integration into larger test systems via PC software
* **Battery Life:** Up to 800 hours
* **Power Source:** 4 x AA batteries or rechargeable battery pack

**Electrical Measurement Capabilities:**

* **DC Voltage:**
* Range: 60 mV to 1000 V (also specified as 100 µV to 1000 V)
* Accuracy: 0.025% + 5 counts
* **AC Voltage:**
* Range: 60 mV to 1000 V (also specified as 100 µV to 1000 V)
* Accuracy: 0.3% + 25 counts (20 Hz to 1 kHz)
* True RMS Accuracy:
* 20 Hz to 45 Hz: 1.0% + 60 counts
* 45 Hz to 1 kHz: 0.3% + 25 counts
* 1 kHz to 10 kHz: (accuracy not explicitly stated, but implied to be within broader ranges)
* 10 kHz to 20 kHz: (accuracy not explicitly stated, but implied to be within broader ranges)
* 20 kHz to 100 kHz: (accuracy not explicitly stated, but implied to be within broader ranges)
* **DC Current:**
* Range: 600 µA to 10 A (also specified as 100 µA to 10 A)
* Accuracy: 0.05% + 5 counts
* **AC Current:**
* Range: 600 µA to 10 A (also specified as 100 µA to 10 A)
* Accuracy: 0.6% + 25 counts
* **Resistance:**
* Range: 100 mΩ to 100 MΩ
* **Capacitance:**
* Range: 1 nF to 100 mF
* **Frequency:**
* Range: 1 Hz to 200 kHz
* **Temperature:**
* Range: -200°C to +1372°C (using K-type thermocouple)
* **Continuity Test:** With visual and audio alerts
* **Diode Test:** Included
* **Vsense Feature:** For quick detection of AC voltage presence without direct contact
* **Low Pass Filter (LPF):** For blocking unwanted high-frequency signals from VFDs, enabling accurate measurement of VFD output signals

**Electrical Specifications – Overload Protection:**
* **AC/DC Voltage:** CAT IV 600 V / CAT III 1000 V
* **Current:**
* 6 A and 10 A ranges: Protected by a 10 x 38 mm, 11 A / 1000 V, 20 kA minimum fast-acting fuse
* Other current ranges: 1000 Vrms

**Interfaces:**
* **Infrared (IR) Port:** For data transfer to PC via optional IR-to-USB cable. Compatible with Keysight Handheld Meter Logger software.
* **Optional Bluetooth Connectivity:** Available with the U1117A IR-to-Bluetooth adapter for wireless data transfer.
* **Remote Switch Probe Input:** For initiating manual logging functions.

**Physical Characteristics:**
* **Rugged Design:**
* IP67 certified water and dust resistance
* Tested to withstand drops up to 3 meters (10 feet)
* **Dimensions:** 184 mm x 87 mm x 55 mm
* **Weight:** Approximately 540 g (including batteries)
* **Operating Temperature:** -20°C to 55°C
* **Storage Temperature:** -40°C to 70°C
* **Altitude:** Up to 3000 m

**Environmental and Safety Compliance:**
* **Safety Ratings:** CAT III 1000 V, CAT IV 600 V
* **CE Mark:** Complies with relevant European Legal Directives
* **ICES/NMB-001:** Complies with Canadian ICES-001
* **WEEE Directive:** Complies with WEEE Directive (2002/96/EC)

**Included Accessories (Typical):**
* Test lead set
* IR-to-USB cable
* Quick start guide
* Batteries
* Certificate of calibration

Why Choose Aumictech for Keysight U1281A?
At Aumictech, we specialize in supplying high-performance test and measurement equipment. Whether you need precise industrial multimeters, rugged field-testing instruments, or reliable laboratory-grade tools, our team ensures the Keysight U1281A delivers maximum performance and durability for your critical applications.