The EX505A heavy duty true RMS industrial multimeter measures AC/DC voltage, current, resistance, capacitance, dual sensitivity frequency (electric 1kHz/electronic 10MHz), type K thermocouple -20°C to 760°C (-4°F to 1400°F), and bead wire temperature probe -20°C to 250°C (-4°F to 482°F). It features a 6000 count backlit LCD screen, 0.5% basic accuracy, relative/data hold, and an auto power function. With a CAT IV-600 V safety rating and an IP67 rating for water and dust, the EX505A is an ideal tool for electricians, HVAC technicians and benchtop technicians who require accuracy, durability, and safety in their electrical testing equipment.

The Extech EX505A-NIST Heavy Duty True RMS Multimeter w/NIST # EX505A-NIST is manufactured by Extech. Valley Instrument Service is an authorized Extech dealer offering full sales support, NIST-traceable calibration, and expert technical assistance.

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NIST Calibration	Yes
AC Current	0.1 µA to 10 A
AC Voltage	0.1 mV to 1000 V
Capacitance	0.01nF to 100 µF
Continuity	Yes
DC Current	0.1 µA to 10 A
DC Voltage	0.1 mV to 1000 V
Diode Test	Yes
Duty Cycle	0.1 to 99.9%
Frequency	Electrical: 5 Hz to 1 kHz / Electronic: 0.001 Hz to 10 MHz
Resistance	0.1Ω to 40 MΩ
Temperature (Type K) Max Resolution	-20°C to 760°C (-4°F to 1400°F)
True RMS	Yes
Certifications	CE, UL
Dimensions	183 mm × 83 mm × 55 mm (7.1 in × 3.2 in × 2.1 in)
Display	6000-count segment LCD
IP Rating	IP67
Power	1 × 9 V battery
Safety Category	CAT IV-600 V
Warranty	3 years
Weight	365 g (12.9 oz)

Model	Description	Price
EX505A	The EX505A heavy duty true RMS industrial multimeter measures AC/DC voltage, current, resistance, capacitance, dual sensitivity frequency (electric 1kHz/electronic 10MHz), type K thermocouple -20°C to 760°C (-4°F to 1400°F), and bead wire temperature probe -20°C to 250°C (-4°F to 482°F). It features a 6000 count backlit LCD screen, 0.5% basic accuracy, relative/data hold, and an auto power function. With a CAT IV-600 V safety rating and an IP67 rating for water and dust, the EX505A is an ideal tool for electricians, HVAC technicians and benchtop technicians who require accuracy, durability, and safety in their electrical testing equipment.	Request Quote	View Details →
EX505A-K	The EX505A heavy duty true RMS industrial multimeter measures AC/DC voltage, current, resistance, capacitance, dual sensitivity frequency (electric 1kHz/electronic 10MHz), type K thermocouple -20°C to 760°C (-4°F to 1400°F), and bead wire temperature probe -20°C to 250°C (-4°F to 482°F). It features a 6000 count backlit LCD screen, 0.5% basic accuracy, relative/data hold, and an auto power function. With a CAT IV-600 V safety rating and an IP67 rating for water and dust, the EX505A is an ideal tool for electricians, HVAC technicians and benchtop technicians who require accuracy, durability, and safety in their electrical testing equipment.	Request Quote	View Details →
EX505A-NISTCurrent	The EX505A heavy duty true RMS industrial multimeter measures AC/DC voltage, current, resistance, capacitance, dual sensitivity frequency (electric 1kHz/electronic 10MHz), type K thermocouple -20°C to 760°C (-4°F to 1400°F), and bead wire temperature probe -20°C to 250°C (-4°F to 482°F). It features a 6000 count backlit LCD screen, 0.5% basic accuracy, relative/data hold, and an auto power function. With a CAT IV-600 V safety rating and an IP67 rating for water and dust, the EX505A is an ideal tool for electricians, HVAC technicians and benchtop technicians who require accuracy, durability, and safety in their electrical testing equipment.	Request Quote	Viewing

NIST Calibration	Yes
AC Current	0.1 µA to 10 A
AC Voltage	0.1 mV to 1000 V
Capacitance	0.01nF to 100 µF
Continuity	Yes
DC Current	0.1 µA to 10 A
DC Voltage	0.1 mV to 1000 V
Diode Test	Yes
Duty Cycle	0.1 to 99.9%
Frequency	Electrical: 5 Hz to 1 kHz / Electronic: 0.001 Hz to 10 MHz
Resistance	0.1Ω to 40 MΩ
Temperature (Type K) Max Resolution	-20°C to 760°C (-4°F to 1400°F)
True RMS	Yes
Certifications	CE, UL
Dimensions	183 mm × 83 mm × 55 mm (7.1 in × 3.2 in × 2.1 in)
Display	6000-count segment LCD
IP Rating	IP67
Power	1 × 9 V battery
Safety Category	CAT IV-600 V
Warranty	3 years
Weight	365 g (12.9 oz)

Model	Description	Price
EX505A	The EX505A heavy duty true RMS industrial multimeter measures AC/DC voltage, current, resistance, capacitance, dual sensitivity frequency (electric 1kHz/electronic 10MHz), type K thermocouple -20°C to 760°C (-4°F to 1400°F), and bead wire temperature probe -20°C to 250°C (-4°F to 482°F). It features a 6000 count backlit LCD screen, 0.5% basic accuracy, relative/data hold, and an auto power function. With a CAT IV-600 V safety rating and an IP67 rating for water and dust, the EX505A is an ideal tool for electricians, HVAC technicians and benchtop technicians who require accuracy, durability, and safety in their electrical testing equipment.	Request Quote	View Details →
EX505A-K	The EX505A heavy duty true RMS industrial multimeter measures AC/DC voltage, current, resistance, capacitance, dual sensitivity frequency (electric 1kHz/electronic 10MHz), type K thermocouple -20°C to 760°C (-4°F to 1400°F), and bead wire temperature probe -20°C to 250°C (-4°F to 482°F). It features a 6000 count backlit LCD screen, 0.5% basic accuracy, relative/data hold, and an auto power function. With a CAT IV-600 V safety rating and an IP67 rating for water and dust, the EX505A is an ideal tool for electricians, HVAC technicians and benchtop technicians who require accuracy, durability, and safety in their electrical testing equipment.	Request Quote	View Details →
EX505A-NISTCurrent	The EX505A heavy duty true RMS industrial multimeter measures AC/DC voltage, current, resistance, capacitance, dual sensitivity frequency (electric 1kHz/electronic 10MHz), type K thermocouple -20°C to 760°C (-4°F to 1400°F), and bead wire temperature probe -20°C to 250°C (-4°F to 482°F). It features a 6000 count backlit LCD screen, 0.5% basic accuracy, relative/data hold, and an auto power function. With a CAT IV-600 V safety rating and an IP67 rating for water and dust, the EX505A is an ideal tool for electricians, HVAC technicians and benchtop technicians who require accuracy, durability, and safety in their electrical testing equipment.	Request Quote	Viewing

EX505A-NIST Heavy Duty True RMS Multimeter w/NIST

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EX505A-NIST Heavy Duty True RMS Multimeter w/NIST

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