The FNIRSI 2C53T is a 3-in-1 portable digital instrument that combines a 2-channel 50 MHz oscilloscope, a multimeter with an accuracy of up to 19999 units, and a 50 kHz signal generator. It is equipped with a 2.8" color display, a 3000 mAh battery, waveform storage, and USB-C charging.

FNIRSI 2C53T is an advanced combined measuring instrument that combines the functions of an oscilloscope, multimeter and signal generator in one compact device. The dual-channel oscilloscope with an analog bandwidth of 50 MHz and a sampling rate of 250 MS/s enables accurate signal acquisition with the possibility of pre- and post-triggering. It supports various trigger and display modes (YT, Rolling, XY) and allows mathematical functions and FFT analysis.

The built-in multimeter with a resolution of 4.5 digits (19999 counts) measures AC/DC voltage up to 1000 V, current up to 9.999 A, resistance, capacitance, diode, temperature and audio continuity. The signal generator provides output up to 50 kHz with 13 waveforms (sine, square, sawtooth, noise, etc.) and adjustable amplitude and duty cycle.

The 2.8-inch color display with a resolution of 320 x 240 pixels clearly displays measurements, and the "infinite afterglow" function allows you to preserve the trace of the waves. The device is built on the ARM + FPGA + ADC architecture and has overvoltage protection (CAT II 300 V). The durable ABS plastic housing with silicone protection and a 3000 mAh battery allow up to 6 hours of operation in the field.

– 3 in 1: oscilloscope, multimeter, signal generator
– Two-channel oscilloscope 50 MHz / 250 MS/s
– 13 types of output signals up to 50 kHz
– 2.8" high-resolution color TFT display
– Built-in memory and USB-C data export
– Automatic measurement setup and image storage
– 3000 mAh battery, up to 6 hours of operation

Technical features:
– Model: FNIRSI 2C53T
– Color: Black
– Display: 2.8" color TFT, 320 x 240 px
– Power supply: 5V / 1A (USB-C)
– Battery: 3000 mAh lithium
– Operating time: up to 6 h
– Dimensions: 167 x 89 x 35 mm
– Weight: 300 g

Oscilloscope:
– Channels: 2 (independent)
– Bandwidth: 50 MHz
– Sampling rate: 250 MS/s
– Storage: 1 Kpts
– Input impedance: 1 MΩ ∥ 15 pF
– Maximum voltage: ±400 V
– Vertical sensitivity: 10 mV/div – 10 V/div
– Time base: 10 ns – 20 s
– Display modes: YT, Rolling, XY
– Trigger modes: Auto, Normal, Single
– Trigger types: rising/falling edge, pulse width, video, slope
– Functions: FFT, mathematical operations, unlimited trace
– Waveform saving and export: supported

Signal generator:
– Frequency: 0–50 kHz (1 Hz step)
– Output voltage: 0–3 V
– Waveforms: 13 (sine, square, triangle, sawtooth, noise, etc.)
– Duty cycle: 0-100%

Multimeter:
– DC voltage: up to 1000 V
– AC voltage: up to 750 V
– DC/AC current: up to 9.999 A
– Resistance: up to 19.99 MΩ
– Capacitance: up to 99.99 mF
– Temperature: –55 to +1300 °C
– Diode test and continuity: yes
– Protection category: CAT II 300 V

Package includes: 1x FNIRSI 2C53T 3-in-1 measuring instrument, 1x Measuring probe, 1x Crocodile probe, 1x Multimeter test lead set, 1x USB-C charging cable, 1x Carrying case, 1x Instructions

Warranty: 12 months

Dimensions: 167 x 89 x 35 mm

Weight: 0.300 kg

Manufacturer:

Shenzhen FNIRSI Technology Co., Ltd.
8F, Weihuada Industrial Park C building West, Li Rong Road Da Lang Street, / Longhua District
518109 Shenzhen
China
jason@fnirsi.com

Data of the responsible person in the EU:

Tech Trade doo Trzin
Blatnica 8
1236 Trzin, Slovenia SL
info@techtrade.si

Same summary

The Fnirsi 3-in-1 2C53T digital multimeter with oscilloscope is suitable for those users who want to perform basic electrical measurements simply and clearly, whether at home or in small workshops. Due to its digital design and handheld form, it is especially convenient for field work and quick repairs, where portability and easy reading are important. The device is a suitable choice for consumers who need a wide measuring range up to 1000 V, but may not be the most optimal for completely demanding laboratory or industrial applications, where more advanced functions or greater robustness are required. Users should pay attention to the correct selection of the measuring range according to the planned use and check the basic safety protection of the device.

Recommendation source: Enaa guides and team experiences.

User view

This type of multimeter is often used by DIYers and hobby electricians looking for a practical tool to quickly check voltages, batteries or to troubleshoot home electrical installations. It is also useful in environments where it is important to move quickly between different measuring points, such as when working on cars or in the garage, as it combines several functions in one device. Its digital design also allows beginners to perform measurements more confidently without unnecessary complications.

Users also often appreciate the diverse range of products from the Fnirsi brand, which is known for its practical solutions for measuring tasks in everyday and more technically demanding situations.

Why buy at Enaa

At Enaa, you can choose from a wide range of proven multimeters, with each device selected according to the current needs of users. Our expert team follows technical guidelines and proven experience when selecting tools, making it easier to find the right model for you.

Answers to frequently asked questions

What measurements is this multimeter best suited for?

It is best suited for basic electrical measurements such as checking voltage, resistance, continuity and basic signal analysis, but is also suitable for quick diagnostics in the car or at home.

Can I use the device in humid rooms?

Use is possible in normal environments, but we recommend taking extra caution and avoiding use in very humid or demanding weather conditions if the device does not have special protection against moisture.

What does the combination of multimeter and oscilloscope functions mean?

This means that in addition to standard electrical measurements, you can also use the same device to monitor the course of electrical signals, which is useful for more detailed device diagnostics.

Is the device also suitable for beginners?

Yes, because it is a digital version and has clearly marked connections and a simple user interface, it is also suitable for those who do not have much experience with measurement technology.

Do I need additional equipment for normal use?

For basic measurements, measuring probes are included, but for special extensions or advanced use (e.g. precise signal analysis), additional equipment can be purchased as needed.

Description updated: April 2026