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CEM AT-9955

Marka : CEM
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Ürün Kodu : AT-9955

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AT-9955 Automotive Digital Multimeter With IR Laser Thermometer

Automotive Digital Multimeter provides multi-functions:

l RPM measurement for automotive engines with 2 to 10 Cylinders using the inductive Pick-up.

l Oversized high contrast 4000 counts LCD display with backlight

l 14 Functions including DCV, ACV, DCA, ACA, Resistance, RPM (Tach), Dwell angle, Duty cycle, Frequency, Temperature (IR Temperature) (ºC/ºF), Capacitance, Continuity and Diode Check.

l Read pulse duty cycle and dwell angle for electronic fuel injection feedback carburetors, and ignition

l Data Hold and Relative functions.

l Over-range indication

l Auto Power Off.

l Fused current inputs and Overload protection on all ranges.

l Measures Milliseconds pulse width to test on-time of fuel injectors, idle air control motors, and electronic transmission controls.





Basic Accuracy

Voltage DC

400mV, 4V, 40V, 400V, 1000V


Voltage AC

400mV, 4V, 40V, 400V, 700V


Current DC

400uA, 4000uA, 40mA, 400mA, 4A, 20A


Current AC

400uA, 4000uA, 40mA, 400mA, 4A, 20A



400Ω, 4kΩ, 40kΩ, 400kΩ, 4MΩ, 40MΩ



600 ~ 4000RPM;600 ~ 12000RPM(x 10RPM)


Dwell Angle

4, 5, 6, 8CYL


Duty Cycle







-20ºC ~ 760ºC/-4ºF ~ 1400ºF


IR Temperature

-20ºC ~ 280ºC/-4ºF ~ 536ºF



40nF, 400nF, 4uF, 40uF, 400uF,4mF,40mF


Pulse Width



Diode Check

Continuity Test

Open circuit voltage 3V dc; Test current 0.3mA typical.

Threshold 30Ω, Continuity Beeper 2.kHz


Test leads, type K temperature Probe, IR temperature probe (IR-82 optional), Inductive
pick-up and 9V battery, Gift box with carrying case.