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122 Digital Multimeter

122 Digital Multimeter


Compact DMM with adapter range for optional accessories, 0.5% DCV basic accuracy.

In stock

SKU: 122 Category: Tags: , ,


Compact DMM with adapter range for optional accessories, 0.5% DCV basic accuracy.

  • 2,000 mvDC (2 DCV) adapter range
  • 2,000 count display
  • 0 to 600 volts AC and DC
  • 0 to 2,000 ohms
  • Audible continuity
  • 10 MOHM internal impedance
  • 0.5 % DCV basic accuracy
  • cULus 61010-1
  • CAT II – 1000V, CAT III – 600V


 Model 122 Specifications
 DC Volts Maximum Input: 600V

Maximum Resolution: 1mV

Accuracy: +/-0.5%

 AC Volts Maximum Input: 600V

Maximum Resolution: 1mV

Accuracy: +/-1.2%

 DC Amps N/A
 AC Amps N/A
 Resistance (Ohms) Maximum Input: 2KΩ

Maximum Resolution: 0.001Ω

Accuracy: +/-0.5%

 Frequency N/A
 Capacitance N/A
 Inductance N/A

(K-Type Thermocouple)

 Continuity Audible at less than 100Ω
 Diode N/A
 Duty Cycle N/A
 True RMS Responding No
 Conductance No
 Pulse Width No
 Data Hold Yes
 Min/Max Record No
 Time Stamp Logging No
 Relative Mode No
 Compare Mode No
 RS-232 Output No
 Process Loop Output No
 Sleep Mode / Auto Off No
 Protective Boot Yes (standard)
 Display Type 2000 count LCD
 Range Selection Manual
 Operating Temperature 32°F to 104°F (0°C to 40°C)
 Storage Temperature 14°F to 122°F (-10°C to 50°C)
 Humidity 80% non-condensing
 Size 6” x 3.1” x 1.2” (187mm x 86mm x 33mm) with boot
 Weight 12oz (340g) with boot
 Battery Type 9V Alkaline (NEDA 1604)
 Battery Life 500hrs Typical
 OverInput Category CAT III 600V
 Agency Approval IEC 61010-1
 Warranty 3 Years


Model 122 Applications

HVAC/R Applications:

• Line voltage
• Control circuit voltage
• Heating element resistance (continuity)
• Compressor winding resistance
• Contactor and relay coil resistance
• Continuity of wiring

Electrical Applications:
• Measure line voltage
• Continuity of circuit breakers
• Voltage of direct drive DC motors.

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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