AT-9955
Automotive Digital Multimeter

RPM measurement for automotive engines with 2 to 10 Cylinders using the inductive Pick-up.
Oversized high contrast 4000 counts LCD display with backlight
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
Read pulse duty cycle and dwell angle for electronic fuel injection feedback carburetors, and ignition
Data Hold and Relative functions.
Over-range indication
Auto Power Off.
Fused current inputs and Overload protection on all ranges.
Measures Milliseconds pulse width to test on-time of fuel injectors, idle air control motors, and electronic transmission controls.

Automotive Digital Multimeter provides multi-functions:

  • RPM measurement for automotive engines with 2 to 10 Cylinders using the inductive Pick-up.
  • Oversized high contrast 4000 counts LCD display with backlight
  • 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
  • Read pulse duty cycle and dwell angle for electronic fuel injection feedback carburetors, and ignition
  • Data Hold and Relative functions.
  • Over-range indication
  • Auto Power Off.
  • Fused current inputs and Overload protection on all ranges.
  • Measures Milliseconds pulse width to test on-time of fuel injectors, idle air control motors, and electronic transmission controls.

FEATURES

Size(HxWxD): 182mm x 82mm x 55mm

Weight: 360g

SPECIFICATIONS

Specifications
Function Range Basic Accuracy
Voltage DC 400mV, 4V, 40V, 400V, 1000V ±(0.5%+2d)
Voltage AC 400mV, 4V, 40V, 400V, 700V ±(0.8%+4d)
Current DC 400uA, 4000uA, 40mA, 400mA, 4A, 20A ±(1.2%+2d)
Current AC 400uA, 4000uA, 40mA, 400mA, 4A, 20A ±(1.5%+4d)
Resistance 400Ω, 4kΩ, 40kΩ, 400kΩ, 4MΩ, 40MΩ ±(0.8%+3d)
RPM(Tach) 600 ~ 4000RPM;600 ~ 12000RPM(x 10RPM) ±(2.0%+2d)
Dwell Angle 4, 5, 6, 8CYL ±(2.5%+2d)
Duty Cycle 0.1~99.9% ±(1.5%+2d)
Frequency 0.001Hz~9.99MHz ±(2.0%+2d)
Temperature -20ºC ~ 760ºC/-4ºF ~ 1400ºF ±(3.0%+2d)
IR Temperature -20ºC ~ 550ºC/-4ºF ~ 1022ºF ±(3.0%+2d)
Capacitance 40nF, 400nF, 4uF, 40uF, 400uF,4mF,40mF ±(3.0%+2d)
Pulse Width 0.1~10mS ±(3.0%+5d)
Diode Check Open circuit voltage 3V dc; Test current 0.3mA typical.
Continuity Test Threshold 30Ω, Continuity Beeper 2.kHz

ACCESSORIES

Accessories:

Test leads, type K temperature Probe, IR temperature probe (IR-82 optional), Inductive

pick-up and 9V battery, Gift box with carrying case.