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Aim-TTi 1908P Bench LCD Digital Multimeter True RMS, AC Current, AC Voltage, Capacitance, DC Current, DC Voltage,

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Aim-TTI 1908P Series Dual Measurement Bench Multimeter

Aim-TTi 1908 Series is a dual measurement, dual display bench-top/portable multimeter. It features continuity and diode test, automatic or manual ranging, linear scaling with offset, dB measurements, limits comparison, percentage deviation (%), min-max storage, power measurement in watts or VA, automatic data logging and external triggering. The logger function can store up to 500 readings from the main display in non-volatile memory. The two displays can be used to display a measurement along with the selected range (e.g. 100 Vdc), a measurement in two different units (e.g. AC volts and dBm), the result of a calculated function (e.g. value and % deviation), two parameters of one signal (e.g. AC and DC volts) or two different signals (e.g. AC volts and DC current). Software 1908-PC Link provides remote control of main functions and logging function with graphical and tabular displays (logged data can be exported to a CSV file). Model 1908P can be remotely controlled via its RS232, USB, GPIB or LAN interface. Model 1908 (non ’P’) can only be controlled via USB.

Features and Benefits

Affordable 5.5 digit high performance bench/portable multimeter, 120 000 counts
Dual display (main display and secondary display) and dual measurement capability

Mains power or Internal rechargeable batteries for true portability

High accuracy and resolution 0.02%, 1 μV, 0.1 μA, 1 mΩ

Manual or Auto-ranging

True RMS AC and AC+DC measurement

DC and AC volts, DC and AC current, resistance, capacitance, frequency, and temperature measurement

Measurement post-processing

Continuity and diode checks

Two or four wire selectable ohms measurement

Display nulling and ohms null

Selectable measurement speed

Touch hold mode - holds onto a stable reading until updated

500 point data logger with timer

Temperature measurement for PT100 or PT1000 sensors

Wide range of computing functions e.g. Ax + B

External input/output remote triggering

Closed case calibration

USB interface standard (1908 & 1908P) plus RS232, LAN/LXI and GPIB interfaces (1908P only)

Kensington security slot incorporated

Dimensions 250 x 97 x 295 mm

Weight 3.2 kg


In dual measurement mode a completely independent but complementary measurement can be made and displayed on the secondary display. The two independent measurements are made alternately, not simultaneously, and the display update rate for each measurement is consequently reduced (this is not the same as dual display mode, where both a measurement and a modified version of that measurement are displayed e.g. ac Volts and the dB equivalent).


EN61010-1, EN61010-2-030 & EN61010-2-033, EN61326-1 EMC

Supplied with

IVI driver, LV/CVI driver, USB driver

Multimeter TypeBench
Absolute Maximum AC Current Measurement10A ac
Absolute Maximum DC Current Measurement10A dc
Absolute Maximum AC Voltage Measurement1000V ac
Absolute Maximum Resistance Measurement1kΩ
Absolute Maximum DC Voltage Measurement1000V dc
Absolute Maximum Capacitance Measurement100µF
Absolute Maximum Temperature Measurement+400°C
Functions MeasuredAC Current, AC Voltage, Capacitance, DC Current, DC Voltage, Frequency, Resistance, Temperature
True RMSYes
Maximum Frequency100kHz
Display TypeLCD
Model Number p1908P
AC Current Measurement Resolution100nA ac
DC Current Measurement Resolution100nA dc
Resistance Measurement Resolution1mΩ
AC Voltage Measurement Resolution1µV ac
DC Voltage Measurement Resolution1µV dc
Temperature Measurement Resolution0.1°C
Capacitance Measurement Resolution10pF
Safety Category Voltage600V
Battery TypeRechargeable NiMH
Best Resistance Measurement Accuracy0.05 %
Best AC Current Accuracy0.35 %
Best DC Voltage Accuracy0.02 %
Dimensions260 x 235 x 88mm
Best Capacitance Measurement Accuracy2 %
Best Temperature Measurement Accuracy0.05 %
Minimum Operating Temperature+5°C
Best DC Current Accuracy0.05 %
Safety Category LevelCAT II
Battery Life>20 (Enabled Backlight) h, >35 (Disabled Backlight) h
Best AC Voltage Accuracy0.3 %
Maximum Operating Temperature+40°C