RM3548-50 - Portable Resistance Meter

Handheld four-wire DC milliohm meter, test current range 500 nA to 1 A, ten resistance ranges from 3 mOhm to 3 MOhm, backlight display, optional Bluetooth communication

€1,298.00*

Content: 1 Each

*Prices excl. VAT plus shipping costs

In stock in Germany

Available stock: 1

Product number: RM3548-50

EAN: 4536036015993

Length: 235 mm

Width: 199 mm

Height: 165 mm

Weight: 0.89 kg

Product information RM3548-50 - Portable Resistance Meter

Key Specifications

0.02 % basic accuracy
test current range 500 nA to 1 A
10 resistance ranges from 3 mOhm to 3 MOhm
0.1 µOhm maximum resolution
Optional Bluetooth communication with Z3210 adapter

Unique Advantages

Only portable meter for low resistances with high accuracies
Withstand DC voltages of up to 70 V

Typical Applications

High voltage connection tests in EVs
Motor Winding tests
Cable length testing
Mechanical connection tests

Detailed Product Overview
The HIOKI RM3548-50 Resistance Meter is a portable, highly sensitive milliohm meter designed for precise small resistance measurements. It delivers a basic accuracy of 0.02% and a resolution of 0.1 μΩ, covering a range from 3 mΩ to 3 MΩ. This makes it ideal for monitoring even slight changes in contact resistance, such as in electric vehicles (EVs), motor and generator windings, or for high-precision cable length measurements.

The RM3548-50 is compact and lightweight. Weighing less than 1 kilogram, this resistance meter allows for easy use in hard-to-reach places. Its rugged design and portability make it a convenient tool for fieldwork and maintenance tasks. With a high current capability of up to 1 A, it can measure low resistance values reliably, making it suitable for checking continuity in automotive ground lines and inspecting welds in aircraft fuselages.

The Resistance Meter RM3548-50 features temperature correction, ensuring accurate measurements by adjusting for ambient conditions. It also includes advanced functions like interval measurement, making it suitable for temperature-rise testing. The device requires no warm-up or zero adjustments, allowing for immediate operation.

With a memory capacity for 1000 data points and easy USB data transfer, the RM3548-50 is highly functional for on-site testing. The resistance meter's overvoltage protection up to 70 V DC and intuitive user interface further enhance its reliability and usability for professionals working in maintenance and testing applications. This four-wire resistance meter combines precision, portability, and ease of use, making it a versatile choice for a wide range of industrial applications.

When paired with the optional Z3210 Bluetooth adapter, measurement data can be wirelessly transferred to a smartphone or tablet. A backlit display ensures easy readings even in lowlight environments. A variety of optional test leads is available, covering both general measurement applications and specialized ones, such as measuring coated alloys or working in sensitive aircraft environments.

RM3548-50 Portable Resistance Meter
L2107 Clip Type Lead
Z2002 Temperature Sensor
Z5041 Instrument Protector
LR6 Alkaline battery (×8)
Instruction manual
USB cable (A to mini-B type)
Neck strap
Spare fuse

Related products

Z3210

Z3210 - Bluetooth Adapter

The HIOKI Z3210 Bluetooth Adapter allows wireless communication between compatible HIOKI products, enabling easy data transfer and remote operation.

€108.00*

View product

C1014

C1014 - Carrying Case for BT3554

Hard case for Battery Tester BT3554 Battery Tester and its accessories

€128.00*

View product

9465-10

HIOKI 9465-10 - Straight Test Lead with Pogo Pins

4-wire straight test lead (1,900 mm) with gold-plated pogo-pin tips for tight battery contacts, rated for 60 V DC. Compatible with BT3554 & RM3548.

€278.00*

View product

9465-11

9465-11 - PIN TYPE LEAD

Key SpecificationsType: Four-terminal test leads with straight pogo-pin tips Measurement type: DC resistance Tip type: Gold-plated spring-loaded pogo pins (Ø 2.9 mm, length 13.5 mm) Contact pressure: Approx. 190 g to 250 g (at 1 mm stroke) Lead length: Black 3.9 m, red approx. 2.0 m (joined for 1.75 m from instrument side)Construction: Four-terminal configuration with coaxial pogo-pin tips Detailed Product OverviewThe 9465-11 test leads are designed for precise DC four-terminal resistance measurements with the HIOKI RM3548 and RM3548-50 resistance meters. With a total cable length of 3.9 m for the black lead and approximately 2.0 m for the red lead, the 9465-11 provides convenient access to measurement points positioned farther apart. From the instrument connector, the red and black leads are joined over approximately 1.75 m before branching. The red lead extends about 5 cm beyond the split and terminates in an 18 cm handgrip with a straight pogo-pin tip. The black lead continues for about 2.0 m to an identical handgrip with a straight pogo-pin tip. This asymmetrical configuration allows measurements between test points spaced farther apart, while maintaining the mechanical stability of a partially joined cable section. Unlike the L2140 lead set, which combines a pogo-pin tip on the red lead with a crocodile clip on the black lead, both leads of the 9465-11 feature straight pogo-pin tips for precise contact on defined metallic surfaces. Each pogo-pin tip (Ø 2.9 mm) has a coaxial design, with the inner conductor acting as the SENSE line and the outer conductor as the SOURCE line. This minimizes contact resistance and noise, ensuring stable and repeatable low-resistance readings. The spring-loaded mechanism provides a defined contact pressure of approximately 190 g to 250 g at 1 mm stroke, enabling reliable connection on small pads or metallic terminals.

€468.00*

View product

9465-90

9465-90 - Replacement Tip for Test Leads

9465-90 replacement Tip Pin, spare part for test leads 9465-10, 9465-11, L2020 and L2140, coaxial designed pogo pin, pack of one.

€68.00*

View product

9772-90

9772-90 - Tip pin

The Hioki 9772-90 is the replacement measurement tip for the Hioki 9772 test lead. Technical Detail: Coaxial pin, diameter: 1.8 mm Contact surface: gilded

€38.00*

View product

9772

9772 PIN TYPE LEAD

The Hioki 9772 Pin-Type Lead is designed for use in narrow spaces where making contact with the subject of measurement is difficult, such as when maintaining emergency batteries. The lead features two parallel, spring contact tips with a diameter of 1.8 mm, allowing for stable connection with the measurement object. Its four-terminal structure ensures precise measurements in confined spaces. Technical Details: Parallel tips, spacing: 2.5 mm Diameter singe tip: 1.8mm Continuous current: AC/DC 2 A Maximum rated voltage between terminal and ground: 60 V DC, 30 V AC RMS, 42.4 V AC peak Operating temperature range: 0°C to 40°C Storage temperature range: -10°C to 50°C Length: approx. 1900 mm Weight: approx. 180 g Accessories: Instruction manual Spare parts: 9772-90 tip pin

€278.00*

View product

L2107

L2107 - Four-wire measuring cable with Kelvin clips for 3540/3561/RM3548

The L2107 clip type lead with Kelvin clamps is an accessory for 3226, 3227, 3239, 3541, 3540, 3561, BT3562, BT3563, RM3548. Technical Details: • Operating environment: Indoors, Pollution Degree 2, altitude up to 2000 m (6562 ft.) • Operating temperature and humidity: 0°C to 40°C (32°F to 104°F), 80% RH or less (no condensation) • Storage temperature and humidity: -10°C to 50°C (14°F to 122°F), 80% RH or less (no condensation) • Dimensions: Overall length approx. 1100 mm (43.31"") • Mass: Approx. 125 g (4.4 oz.) • Rated current: 3 AAC/DC continuous • Maximum rated voltage to earth: 30 V rms, 42.4 V peak, 60 V DC • Cable flex service life: 15,000 times until a break develops (under conditions specified by Hioki) • Spring service life: 15,000 open/close cycles (under conditions specified by Hioki)

€168.00*

View product

9467

9467 - Four-wire measuring cable with large terminals

The 9467 four-pole design measurement lead features large alligator clips for clamping onto lead-acid battery terminals, supporting operating voltages up to 50V.Technical details: Compatibility: Hioki 3227, 3540, 3541, 3550, 3551, 3554, 3560, 3561, BT3554, BT3554-01, BT3562, BT3563 (for operating voltages below 50V), RM3548Mass: 165g Length: 1.3m

€248.00*

View product

L2105

L2105 LED COMPARATOR ATTACHMENT

The Hioki L2105 LED Comparator Attachment is designed for efficient judgment indication when connected to the COMP.OUT jack of compatible instruments. It allows users to easily check measurement results from a distance, with the LED indicator showing green for acceptable (IN) results and red for high (Hi) or low (Lo) readings.

€68.00*

View product

Z2002

Z2002 Temperature Sensor

The HIOKI Z2002 temperature sensor is a standard accessory for the HIOKI RM3548.

€78.00*

View product

Z5041

Z5041 - Instrument Protector for BT3554 and RM3548

HIOKI Z5041 Instrument Protector for BT3554 portable battery tester and RM3548 portable resistance meter

€38.00*

View product

9454

HIOKI 9454 - Zero Adjustment Board

Zero-adjustment board for HIOKI test leads L2100, 9461, 9465 and 9472; ensures accurate resistance measurements. Order now from HIOKI Europe.

€48.00*

View product

9453

9453 - Four-wire measuring cable

The 9453 is of 4-pole design. It can be used to perform the 4-pole resistance measurement method. The 9453 test lead has four separate tips in red and black. Two are small alligator clips and two are probes with tips. Technical details: Length: 1350mm Measuring devices (accuracy guaranteed): 3227, 3540, 3541, 3555, 3560, 3561, BT3562, BT3563 (operating voltage below 60V)

€118.00*

View product