The 4.5 handheld digital multimeters’ key features are: – DC, AC voltage and current measurements. – True-RMS measurement for both AC voltage and current – Harmonic ratio for power quality of sine wave (for U1242B) – Switch counter for detecting the bounce of switch – Ambient temperature display with each measurement – Scan temperature measurement for T1, T2 and T1–T2 (for U1242B) – Resistance measurement up to 100 MΩ – Diode and audible continuity tests – Capacitance measurement up to 10mF – The % scale readout for 4–20 mA or 0–20 mA measurement – Temperature test with selectable 0 °C compensation (without ambient temperature compensation). – K-type (for U1241B) and J/K-types temperature measurement (for U1242B) – MinMax Recording for minimum, maximum and average readings – Data Hold with manual or auto trigger – Null/Relative function – Auto or manual data logging memories (for U1242B) – Battery capacity indicator – Adjustable brightness level of orange LED backlight display – Closed case calibration – 10,000 count precision true RMS digital multimeter, designed to meet EN/IEC 61010-1:2010 Category III 1000 V / Category IV 600 V Overvoltage Protection, Pollution Degree II standards
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