The ET3240 series of four-and-a-half-digit multimeters are full-featured, stable-performance true RMS dual-display digital multimeters. This meter uses the STM32 chip with external main technical indicators dual-integral AD to provide accurate measurement and stable performance. The 3.5-inch 320*480 high-resolution TFT LCD display has clear readings, rich displays, and good visual effects. This meter is powered by AC power and provides full-function, full-range overload protection. The fresh and simple appearance design combined with excellent performance makes it an electrical specification model ET3240 5T3241 ET3241B ET3242 ET3243 A must-have for electronics enthusiasts, engineers and university laboratories.
Accurate measurement value for lab and production teams The ET3240 series four and a half digit multimeter is built to give buyers a dependable Digital Multimeter for precision measurement tasks where stable readings matter. As a Benchtop Multimeter, it combines true RMS dual-display performance with full-function, full-range overload protection, making it a practical choice for engineering labs, equipment verification stations, and production test benches. The instrument is designed to deliver clear, trustworthy results across routine inspection and more demanding measurement workflows, helping operators reduce uncertainty when checking voltage, current, resistance, and other electrical parameters in daily test and validation work. Stable internal architecture for consistent test output This model uses an STM32 chip with external main technical indicators dual-integral AD, a design choice that supports accurate measurement and stable performance over repeated use. The 3.5-inch 320*480 high-resolution TFT LCD provides clear readings, rich display information, and good visual effects, which helps technicians review results quickly during test procedures and reduces errors caused by unclear displays. For procurement teams and system integrators comparing Measurement Instruments and Electronic Test Equipment, the ET3240 stands out as a reliable bench tool with professional-grade display clarity and measurement consistency, suitable for test environments that value repeatability and easy monitoring. Practical fit for test benches, service work, and multi-instrument setups Powered by AC and designed with a fresh, simple appearance, this meter is well suited to controlled workspaces where continuous operation and organized bench layouts are important. It fits naturally alongside a Programmable DC Power Supply, DC Electronic Load, Precision Digital Bridge, LCR Meter, or Multi-channel DC Power Supply in electronics assembly, maintenance, quality control, and equipment calibration setups, and it can also serve teams that already rely on higher-end tools such as a 6.5 Digit Multimeter when a stable companion meter is needed for everyday checks. For distributors, service centers, plant engineers, and repair operators, this Digital Multimeter offers a balanced mix of function, readability, and operational reliability that supports efficient test workflows in real-world use.
Key Advantages
Stable Measurement Structure for Professional Use The ET3240 series is built as a true RMS Digital Multimeter with dual-display output, STM32 control, and external main technical indicators dual-integral AD processing. This structure supports accurate and stable readings when users need repeatable results across electrical testing tasks, which is a practical advantage for procurement teams, service departments, and test benches that depend on dependable measurement instruments rather than short-term display speed alone. Clear Display and Practical Integration Its 3.5-inch 320*480 TFT LCD makes readings easy to view, and the AC-powered design with full-function overload protection supports long-term operation in bench environments. For teams that already use a Benchtop Multimeter, LCR Meter, Precision Digital Bridge, Programmable DC Power Supply, DC Electronic Load, or Multi-channel DC Power Supply, this meter fits as a stable companion instrument in a test system built around electronic test equipment and routine maintenance needs.
Features ■ 4 5/6-bit resolution, maximum display digits 66000 ■ Basic accuracy: 0.0 2% ■ Maximum DC current 12A, maximum DC voltage 1100V; ■ Period and frequency measurement: Maximum frequency is 20MHz; ■ Additional functions: data retention, data storage, data readback; ■ Capacitance function: Maximum 10mF capacitance measurement; ■ True RMS AC voltage and AC current measurement, bandwidth up to 100kHz; ■ Dual parameter display, can display two parameters of the same input signal (for example, in AC voltage measurement, can display AC voltage value and AC frequency value at the same time) ■ Trigger mode: automatic trigger, single trigger, external trigger; ■ 12 basic measurement functions: AC/DC voltage, AC/DC current, two-wire/four-wire resistance, period, frequency, diode, continuity, limit test, duty cycle, AC+DC measurement; ■ Mathematical functions: upper limit comparison, lower limit comparison, statistics (maximum value, minimum value, average value), reciprocal, relative, dB, dBm, percentage, MX+B; ■ Temperature measurement: 10 types of thermocouples: K/N/R/S/T/B/E/J/TWRe325/WRe526, 4 types of thermal resistors: PT100/PT50/Cu50/Cu100; ■ Measurement speed: fast, medium, slow; ■ Provide system settings, you can configure the language (Chinese or English), buzzer, screen brightness, and interface style adjustment; ■ Use 3.5-inch TFT wave crystal screen display (resolution 320*480), the screen brightness can be adjusted; ■ Communication interface: USB Device, support SCPI programming protocol, (RS232 optional); General Technical Specifications: ■ Power supply voltage: 220VAC±10% or 110VAC±10%, 45-65Hz; ■ Working environment: 0~40C, relative humidity <80%; ■ Storage environment: -10~50°C, relative humidity <80%; ■ Screen display: 3.5-inch TFT LCD screen, resolution 480x320; ■ Dimensions: 265mm*105mm*305 mm (width*height*depth); ■ Product weight: 2.3kg; Standard accessories: ■ 1 three-core power cord; ■ 1 pair of three-core test leads; ■ Backup power fuse Optional accessories: ■ RS232 serial port cable (32P04); ■ USB data cable (32P05)
Use Scenarios
Production Test and Laboratory Bench Measurement In production lines, repair stations, and laboratory benches, operators often need to confirm voltage, resistance, and other electrical values without unstable readings affecting the workflow. In these environments, the meter serves as a reliable Benchtop Multimeter for checking device performance, verifying calibration points, and supporting routine inspection work, which makes it well suited for teams that require stable measurement instruments during repeated daily testing. System Debugging and Equipment Verification During the setup of a Programmable DC Power Supply, DC Electronic Load, or Multi-channel DC Power Supply, engineers need a dependable instrument to verify output behavior, confirm wiring, and compare values across channels. The ET3240 series works as a practical Digital Multimeter in these environments because its clear display, overload protection, and stable performance help operators identify issues quickly and maintain control over electronic test equipment during commissioning and maintenance tasks.
FAQ
Q1. What measurement functions does this Digital Multimeter support? It is a true RMS dual-display Digital Multimeter with comprehensive functions and stable performance. Our ET3240 series is designed for accurate electrical measurement, and its dual-display layout helps operators read results clearly during routine test bench work.
Q2. How does the display help with daily testing on a bench? The unit uses a 3.5-inch 320*480 high-resolution TFT LCD, so readings are clear and the visual presentation is strong. For panel builders and lab teams using a Benchtop Multimeter, our display format supports fast verification and practical day-to-day operation.
Q3. What makes the measurement performance stable and accurate? The meter uses an STM32 chip with external main technical indicators and dual-integral AD to provide accurate measurement and stable performance. That architecture is suitable for users who need consistent results from a precision Measurement Instruments platform in controlled test environments.
Q4. What power and protection features are included? The unit is powered by AC power and provides full-function, full-range overload protection. This makes it well suited for fixed workstations where operators need dependable test equipment with built-in protection during routine measurement tasks.
Q5. Can this meter be used alongside other laboratory test equipment? Yes, it fits naturally into setups that include a Programmable DC Power Supply, DC Electronic Load, or LCR Meter. Our customers can use it as part of a broader bench environment for electrical testing, calibration checks, and routine instrument verification.
