Clamp-on Meter Model 404

Introducing the TRMS Clamp-on Meter Model 404:

 This versatile instrument seamlessly measures AC Voltage up to 1200 V and DC Voltage up to 1700 V, making it an indispensable asset for tackling a wide range of electrical applications.

Accuracy and Safety

The Model 404 boasts exceptional measurement accuracy, ensuring that you can confidently gather reliable data for informed decision-making. It boasts current measurement up to 1000 A AC and 1500 A DC. 1000 V CAT IV  and 1500 VCAT III  safety ratings guarantee your protection even in the most demanding electrical environments, giving you peace of mind as you conduct critical tests.

Rugged Durability for Demanding Workplaces

Built to withstand the rigors of even the most challenging work environments, the Model 404 is IP54 rated, making it impervious to dust and water spray. This rugged construction ensures that your trusty tool will remain operational and reliable, even in demanding conditions.

Ergonomic Design for Effortless Operation

The Model 404 prioritizes user comfort with its ergonomic design, allowing for effortless one-handed operation. Function selection and button pushing can be easily accomplished even with gloves on, saving you time and effort while maximizing efficiency.

Unmatched Functionality for Diverse Applications

Beyond the standard measurements of volts, amps, frequency, resistance, diode checking, and continuity, the Model 404 offers an array of unequaled functions, including:

  • AC, DC, and AC+DC volts, amps, and Ohms
  • Diode checking
  • Continuity
  • Temperature and adapter function
  • True InRush®
  • Delta relative function

This comprehensive range of functionalities empowers you to tackle a wide spectrum of electrical challenges with confidence.

NOTE: Our complete catalog is not available for direct online purchase, refer to the Status Column for purchasing options. Items that do not have an Add to Cart button must be purchased from an Authorized Distributor.
Model Cat. # Description List Price Quantity/Status Distributor Stock Check
404 2139.22 Clamp-on Meter Model 404 $449.00
Model404
Cat. #2139.22
DescriptionClamp-on Meter Model 404
List Price$449.00

Model 403 - Cat. #2139.22: Includes a soft carrying case, (2) 5 ft color-coded silicone insulated test leads (red/black), (2) color-coded alligator clips (red/black), (1) black test probe, (1) red test probe, K-thermocouple with 4 mm integrated adapter, (4) 1.5 V AA batteries, and a user manual.

Print
Voltage Range DC: 1700 Vrms Autoranging
Voltage Range AC: 1200 Vrms Autoranging
Resolution Max: 0.01 V to 1 V
Current Range: 1000 Arms AC, 1500 ADC
Resolution: (0.01 to 1) A
Accuracy V Typical: 1% ± 4cts
Accuracy A Typical: 1% ± 3cts
InRush: 10 A to 1000 AAC, 1500 ADC
Continuity: Selectable from (0 to 999.9) Ω
Resistance: 100 kΩ
Diode Test: (0 to 3.2) VDC
Frequency: 5 Hz to 20 kHz in V
5 Hz to 2 kHz in A
Temperature K Thermocouple: (-76.0 to 2192) °F (-60 to 1200) °C
Adapter Function: Yes (0 mV to 10 V) DC, ( 5 to 10) V AC
LCD w/backlight: Yes
MIN/MAX: Yes
Power Source: 4 x AA, NEDA 15A, IEC LR6
Battery Life: >350 hours
Dimensions: (10.7 x 3.6 x 1.6) in (272 x 92 x 41) mm
Weight: 1.32 lbs (600 g) with batteries
Jaw Opening: 1.89" (48 mm)
Operating Temperature: (-4 to to 131) °F (-20 to 55) °C
Storage Temperature: (-40 to 158) °F (-40 to 70) °C
Operating Humidity: 90 % up to 131 °F (55 °C)
Pollution Degree: 2
Ingress Protection: IP54
EMC: EN61326-1
Safety Compliance: EN/IEC 61010-1
EN/IEC 61010-2-030 
EN/IEC 61010-032 to 1000 V CAT IV, 1500 V CAT III

User Manuals

Datasheets

Brochures

Comparison Charts

Application Notes

Videos

400 & 600 Clamp On Series Instructional Presentation

Model Cat. # Description List Price Quantity/Status Distributor 
Stock Check
2121.05 AC Line Splitter Model ALS-1 $18.00
2139.71 Thermocouple – K-thermocouple w/4mm Integrated Adapter (Replacement for Models 1821,1822, 5233, 5217, MTX 3292B/92B-BT/93B/93B-BT, 203, 401, 403, 601, 603, 607, 675 & 5217) $14.00
2139.72 Replacement Pouch for Clamp-on Meter Models 401, 403, 405, 601, 603 & 605 and Megohmmeter Models 6528 & 6529. Dimensions: 13.54 x 4.75 x 2.75” $18.95
5000.30 Probe - black test probe {Rated 1000V CAT IV, 15A, UL} replacement for Megohmmeter lead sets $6.00
5000.94 Lead - set of 2, 5 ft silicone color-coded (red/black) with 4mm straight/right banana plugs (Rated 1000V, CAT IV, UL) $26.50
5000.98 Probe - red test probe {Rated 1000V CAT IV, 15A, UL V2} $9.00
5000.99 Clip - Safety Alligator - Black (1000V CAT IV, 15A, UL V2) $11.50
5100.00 Clip - Safety Alligator - Red (1000V CAT IV, 15A, UL V2) $11.50
Model
Cat. #2121.05
DescriptionAC Line Splitter Model ALS-1
List Price$18.00
Model
Cat. #2139.71
DescriptionThermocouple – K-thermocouple w/4mm Integrated Adapter (Replacement for Models 1821,1822, 5233, 5217, MTX 3292B/92B-BT/93B/93B-BT, 203, 401, 403, 601, 603, 607, 675 & 5217)
List Price$14.00
Model
Cat. #2139.72
DescriptionReplacement Pouch for Clamp-on Meter Models 401, 403, 405, 601, 603 & 605 and Megohmmeter Models 6528 & 6529. Dimensions: 13.54 x 4.75 x 2.75”
List Price$18.95
Model
Cat. #5000.30
DescriptionProbe - black test probe {Rated 1000V CAT IV, 15A, UL} replacement for Megohmmeter lead sets
List Price$6.00
Model
Cat. #5000.94
DescriptionLead - set of 2, 5 ft silicone color-coded (red/black) with 4mm straight/right banana plugs (Rated 1000V, CAT IV, UL)
List Price$26.50
Model
Cat. #5000.98
DescriptionProbe - red test probe {Rated 1000V CAT IV, 15A, UL V2}
List Price$9.00
Model
Cat. #5000.99
DescriptionClip - Safety Alligator - Black (1000V CAT IV, 15A, UL V2)
List Price$11.50
Model
Cat. #5100.00
DescriptionClip - Safety Alligator - Red (1000V CAT IV, 15A, UL V2)
List Price$11.50

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