Datasheet

Keysight Technologies, Inc. U1240 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 U1240 Series comes with a certificate of calibration and test
report – at no extra cost.
The latest multimeters in this series, the U1241B and U1242B, now come in
vivid orange cases, offering the capabilities and functions you need.
Key features
Check more, fix more
– 10,000-count display
– 0.09% basic DCV accuracy
– True RMS AC measurement
– Basic functions — ACV,
DCV,
ACI, DCI, resistance, fre-
quency, diode, continuity
tests
– Advanced functions —
Capacitance, temperature,
MINMAX recording
Ease of use
– Adjustable backlighting —
two intensity levels
– Manual data logging
(U1242B only)
– Built-in switch counter, har-
monic ratio (U1242B only),
dual/differential tempera-
ture capabilities (U1242B
only)
Built to last
– Overmold body casing
– CAT III 1000 V and
CAT IV 600 V safety protec-
tion
– Certified to CE and CSA
standards
– Operating temperature:
–10 to 55 °C
Diode Test
Switch Counter
DCV:
0.1m V to 1000 V
ACV: 50m V to 1000 V
Harmonic Ratio
(U1242B only)
Backlight:
Two intensity levels
Resistance:
0.1 Ω to 100 MΩ
ACA: 50 uA to 10 mA
Capacitance:
0.1 nF to 10 mF
Ambient temperature
ACmA: 5 mA to 440 mA
ACA: 0.5 A to 10 A
Frequency: 1 Hz to 200 kHz
MINMAX Recording
T1–T2 Differential
Temperature
(U1242B only)
Temperature:
–40 to 1000 °C
Manual Data Logging
(U1242B only)
Functions and ranges at a glance