The U1271A digital multimeter is shaped perfectly to fit in your hand, with or without gloves on. Its nonslip ergonomic shape enables you to carry your DMM and perform measurements on the go easily. Additionally, the controls are easy to operate due to the large knob and buttons. Designed for maximum efficiency and productivity, these DMMs offer convenient functions such as ZLOW to eliminate stray voltages, Smart Ω to minimize false readings due to leakage current and Qik-V to determine existence of AC and/or DC voltages.
Shaped to fit
Agilent U1270 series shaped perfectly to fit in your hand, with or without gloves on. Its non-slip ergonomic shape enables you to carry your DMM and perform measurements on the go easily
Tailored to perform
Agilent U1270 series comes with intelligent features such as LPF, which eliminates high frequency noise and harmonics, and Qik-V to determine existence of AC and DC voltage. To improve safety, the U1270 series incorporates visual alert blinks in addition to the beeper for Continuity test for measurements in noisy environments.
Built to last
With IP 54 certified, the U1270 Series is water and dust resistant for harsh working conditions.
Get a better grip on your DMM
The U1270 series is shaped perfectly to fit in your hand, with or without gloves on. Its non-slip ergonomic shape enables you to carry your DMM and perform measurements on the go easily. Additionally, the controls are easy to operate due to the large knob and buttons.
Improve productivity with intelligent features
Designed for maximum efficiency and productivity in industrial settings, these DMMs offer convenient functions such as Z LOW to eliminate stray voltages, Smart Ω to minimize false readings due to leakage current and Qik-V to determine existence of AC and/or DC voltages.
Continuity detection in noisy and dark places is made easy with the U1270 series’ loud beeper and Backlight Alert function which flashes the backlight to indicate continuity and improve safety.
When it comes to Variable Frequency Drive (VFD) troubleshooting, the U1270 series has Low Pass Filter to handle the job with ease.
Water and dust resistant
The series’ tightly sealed design helps protect against water, dust and damage. Each DMM is IP 54 certified so that you can carry out test and measurement with confidence, even in harsh working conditions.
Key functions
Low Impedance (Z LOW )
The U1272A is a dual input impedance digital multimeter. The DMM’s high input impedance is preferred in most electrical measurements because it would not load the circuit under test. However, to obtain accurate measurements on circuits that may contain stray voltages, the U1272A’s 2 kΩ low impedance function comes in handy. Stray voltages are usually found in non-energized electrical wiring adjacent to powered wires due to capacitive or inductive coupling between these wires. When a pair of test leads is placed between the open circuit and neutral conductor, the circuit is then complete and forms a voltage divider in conjunction with the input impedance of the multimeter. High input impedance multimeter is sensitive enough to measure voltage coupled into the disconnected conductor, thus giving an inaccurate indication of a live conductor. The low impedance function serves to eliminate false readings by dissipating the stray voltages, thus improves safety and measurement efficiency during voltage.
![]()
U1272A helps you identify the presence of stray voltage on a disconnected wire running parallel with the wire powering up the VFD to an industrial motor. The image on the right shows the U1272A in low impedance mode.
Differences between the U1271A and U1272A
The U1272A model offers these additional functions:
- ZLOW (low input impedance) measurements
- Smart Ω measurements
- Auto-diode tests
- AC+DC voltage and current measurements
- J-type thermocouple temperature measurements
- 30 Ω and 300 MΩ ranges for resistance measurements
- dBm and dBV measurements with selectable impedance
- Data logging up to 10,000 memories
The U1271A model has one differing function:
Specification Assumptions
- Accuracy is given as ±(% of reading + counts of least significant digit) at 23 °C ± 5 °C, with relative humidity less than80% RH.
- AC V and AC µA/mA/A specifications are AC coupled, true RMS and are valid from 5% of range to 100% of range.
- The crest factor may be up to 3.0 at full scale except for the 1000 V range where it is 1.5 at full scale.
- For non-sinusoidal waveforms, add (2% reading + 2% full scale) typical, for crest factors up to 3.
- After ZLOW voltage measurements, wait at least 20 minutes for thermal impact to cool before proceeding with any other measurement.