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Agilent U1242B
4-digit Handheld Digital Multimeter

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Product Information
Datasheet 355 KB
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  • 10,000-count display
  • 0.09% basic DC voltage accuracy and true RMS measurement
  • Basic functions: DCV, DCI, ACV, ACI, resistance, frequency, continuity, diode test
  • Advanced functions: capacitance, switch counter, harmonic ratio, dual and differential temperature, data logging to DMM (up to 200 points)
  • Adjustable backlighting
  • Min/Max recording
  • CAT III 1000V and CAT IV 600V over voltage protection
  • Certified to CE and CSA

The Agilent U1242B 4-digit handheld digital multimeter (DMM) is designed for quick checks and fixes in the installation and maintenance of machinery, facility and electrical systems. Key capabilities include the switch counter for the detection of glitches on facility switch and relay systems. The harmonic ratio function of the Agilent U1242-B Multimeter helps detect the presence of harmonics in AC supplies that can lead to overheating of motors, generators and transformers. The Agilent U1242/B also enables dual and differential temperature measurements for heating, ventilation and air-conditioning (HVAC) systems. Monitoring differential temperature in real-time is especially useful in making sure that HVAC components in the system are cooling or heating the way they should with respect to time. With the Agilent U1242B DMM, you can perform inspections quickly and conveniently with the same troubleshooting tool that you carry on your daily rounds.

The Agilent U1242 Series handheld digital multimeters enable you to check more with wider measurement ranges. They feature true RMS readings on their 10,000-count displays. The adjustable backlighting allows you to complete your jobs even in subdued lighting conditions, or to simply prolong battery life. Your maintenance tasks are greatly simplified due to the built-in switch counter, harmonic ratio, dual and differential temperature capabilities, with just a press of the button. The meters have a high safety rating with CAT III 1000 V and CAT IV 600 V protection and are certified to CE and CSA standards. On top of that, the Agilent U1242 Series comes with a certificate of calibration and test report – at no extra cost.

DC Specifications
Function Range Resolution Test Current/
Burden Voltage
Accuracy
± (% of Rdg. + # of Least Significant Digit)
Voltage 1000.0mV 0.1mV - 0.09%+5
10.000V 0.001V - 0.09%+2
100.00V 0.01V -
1000.0V 0.1V - 0.15%+5
Current 1000.0 µA 0.1 µA < 0.06 V (50 W) 0.1% + 3
10000 µA 1 µA < 0.55 V (50 W)
100.00 mA 0.01 mA < 0.18 V (0.5 W) 0.2% + 3
440.0 mA 0.1 mA < 0.8 V (0.5 W) 0.5% + 3
10.000 A 0.001 A < 0.4 V (0.01 W) 0.6% + 5
Resistance 1000.0 W 0.1 W 0.5 mA 0.3% + 3
10.000 kW 0.001 kW 50 µA
100.00 kW 0.01 kW 4.91 µA
1000.0 kW 0.1 kW 447 nA
10.000 MW 0.001 MW 112nA 0.8% + 3
100.00 MW 0.01 MW 112nA 1.5% + 3
Diode Test 1V 0.001 V approximately 0.5 mA 0.3% + 2
 
AC Specifications
Function Range Resolution Test Current/
Burden Voltage
Accuracy
± (% of Rdg. + # of Least Significant Digit)
40 Hz-500 Hz 500 Hz-1 kHz 1 kHz-2 kHz
AC Voltage
True RMS
1000.0 mV 0.1 mV - 1% + 5 2% + 5 -
10.000 V 0.001 V - 1% + 5 2% + 5
100.00 V 0.01 V -
1000.0 V 0.1 V - -
Ac Current
True RMS
1000.0 µA 0.1 µA < 0.06 V (50 W) 1% + 5 1.5% + 5 -
10000 µA 1 µA < 0.55 V (50 W)
100.00 mA 0.01 mA < 0.18 V (0.5 W)
440.0 mA 0.1 mA < 0.8 V (0.5 W)
10.000 A 0.001 A < 0.4 V (0.01 W)
 
Temperature Specifications
Thermocouple Type Range Resolution Accuracy ± (% of Reading + Offset Error)
K –40 to 1000°C/
–48 to 1832°F
0.1 ºC/0.1 ºF 1% + 1°C/ 1% + 1.8°F
J –40 to 1000°C/
–48 to 1832°F
0.1 ºC/0.1 ºF 1% + 1°C/ 1% + 1.8°F
 
Capacitance  Specifications
Range Resolution Accuracy ± (% of Reading + No. of Least Significant Digit)
1000.0 nF 0.1 nF 1.2% + 4
10.000 µF 0.001 µF
100.00 µF 0.01 µF
1000.0 µF 0.1 µF 2% + 4
10.000 mF 0.001 mF
 
Ordering Information
Model Description Buy Online Price
U1242B Agilent U1242B 4-digit Handheld Digital Multimeter Please Call
Included Accessories
  • 4 - 1.5V AAA Alkaline Batteries
  • 1 - Certificate of Calibration (CoC)
  • 1 - Test Probe Leads (19mm and 4mm Tips)
  • 1 - Quick Start Guide
Included
Optional Accessories
Probes/Test Leads
U1161A Agilent U1161A Extended Test Lead Kit Please Call
U1162A Agilent U1162A Alligator Clips Please Call
U1163A Agilent U1163A SMT Grabbers Please Call
U1164A Agilent U1164A Fine Tip Test Probes Please Call
U1168A Agilent U1168A Standard Test Lead Set with 4mm Test Probes Please Call
U1169A Agillent U1169A Standard Test Leads with 4mm Probe Tip Please Call
Adapters
U1180A Agilent U1180A T/C Adapter + Lead Kit, J & K type Please Call
U1181A Agilent U1181A Immersion temperature probe Please Call
U1182A Agilent U1182A Industrial Surface Probe Please Call
U1183A Agilent U1183A Air Probe Please Call
U1185A Agilent U1185A Thermocouple (J-Type) and Temperature Probe Adapter Please Call
U1186A Agilent U1186A K-type thermocouple and adapter Please Call
U1583B Agilent U1583B AC Current Clamp Please Call
Adapters
U1171A Agilent U1171A Magnetic Hanging Kit Please Call
U1172A Agilent U1172A Transit case (aluminium-clad) Please Call
U1174A Agilent U1174A Soft Carrying Case Please Call