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183a Digital Multimeter


True RMS DMM with temperature, capacitance, duty cycle, and low-pass filter.

In stock


True RMS DMM with temperature, capacitance, duty cycle, and low-pass filter.

  • 4,000 count display
  • True RMS for more accurate measurements
  • Auto/manual ranging
  • Temperature measurement
  • Duty cycle to measure the amount of time the motor is on
  • Low pass filter for noisy environments
  • Separate fuse (2) and battery compartment
  • IR serial interface
  • cULus 61010-1
  • CAT II – 1000V, CAT III – 600V


 Model 183A Specifications
 DC Volts  Maximum Input: 1000V

Maximum Resolution: 0.1mV

Accuracy: +/-0.05%

 AC Volts  Maximum Input: 750V

Maximum Resolution: 0.01mV

Accuracy: +/-0.4%

 DC Amps  Maximum Input: 10A

Maximum Resolution: 0.01μA

Accuracy: +/-0.8%

 AC Amps  Maximum Input: 10A

Maximum Resolution: 0.01μA

Accuracy: +/-0.75%

 Resistance (Ohms)  Maximum Input: 40MΩ

Maximum Resolution: 0.1mΩ

Accuracy: +/-0.05%

 Frequency  Maximum Input: 10MHz

Maximum Resolution: 0.01Hz

Accuracy: +/-0.05%

 Capacitance  Maximum Input: 4000µF

Maximum Resolution: 0.01nF

Accuracy: +/-3%

 Inductance  N/A

(K-Type Thermocouple)

 Maximum Input: 2372°F (1300°C)

Maximum Resolution: 0.1°F / °C

Accuracy: +/-2%

 Continuity  Audible at less than 300Ω
 Diode  2.7V at 1mA maximum output
 Duty Cycle  Range: 0.1 to 99.9%

Accuracy: 0.1% + 1 count

 True RMS Responding  Yes
 Conductance  No
 Pulse Width  No
 Data Hold  Yes
 Min/Max Record  Yes
 Time Stamp Logging  No
 Relative Mode  Yes
 Protective Boot  Yes (standard)
 Display Type  4000 count LCD, 2 times per second update
 Range Selection  Auto/Manual
 Operating Temperature  0° to 40°C (32° to 104°F)
 Storage Temperature  -10° to 50°C (14° to 122°F)
 Relative Humidity  0% to 80%
 Size  33mm x 86mm x 187mm (1.3in x 3.4in x 7.4in)
 Weight  12oz (340g) with boot
 Battery Type  1.5V “AA” Alkaline (2)
 Battery Life  200hrs Typical
 OverInput Category  CAT III 600V
 Agency Approval  cULus 61010-1, IEC 61010-1
 Warranty  3 Years


Model 183A Applications

  • Test run and start capacitors
  • Measure ambient and duct temp
  • Test control (thermostat, thermocouple, flame safety) and line voltages
  • Measure resistance and test for continuity
  • Line current up to 10amps (in series)

Tech Tips

Category Ratings:

  • Category I: Usually electronic equipment or equipment where measures have been taken to limit transient over voltages.
  • Category II: Single phase loads like appliance personal computers, television sets, and other household loads. Outlets located more than 30 feet froma CAT III source or more than 60 feet from a CAT IV source.
  • Category III: Distribution level fixed installations like distribution panel devices, short branch and feeder circuits, three phase loads, and single phase commercial lighting.
  • Category IV: Equipment and lines located on the power line side of a service panel or where a low voltage connection is made to utility power


Frequently Asked Questions

1. Is there a way to measure higher current with a TPI DMM?

TPI DMMs (except the 120 and 126) have the capacity to read up to 10A AC/DC. Optional adapters are available for all models to increase the current range. Our shunt adapters are available to increase the range up to 1,000A AC/DC.

2. What other adapters are available for TPI DMMs?

Various adapters including carbon monoxide (A771), pressure (A620/630), and clamp-on low current (A254) are available. Contact TPI for additional information.

3. Which of the TPI DMMs will measure temperature?

All TPI DMMs can measure temperature by using the optional A301 K-Type thermocouple temperature adapter.

4. Which TPI DMMs can measure DC millivolts?

All TPI DMMs measure millivolts. Models are available with 1 or 0.1 millivolt resolution.

5. Which TPI DMMs can measure DC microamps?

The TPI 126, 133, 135, 153, 163, 183, 190, 194, 196, and 440 all have this capability.

6. Which TPI DMMs will measure capacitance?

The TPI 135, 183, 190, 192, 194, and 440 all have this capability.

7. What is continuity?

Continuity refers to a test performed on wires and circuits to see if a break(open) exhists. If the wire or circuit is continuous, the resistance reading will be at or near zero. The continuity range on a meter provides audible indication of a continuous circuit, allowing quicker tests without having to take your eyes off the circuit or wire under test.

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