

FNIRSI S1 digital multimeter
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Description
Product information
FNIRSI S1 digital multimeter
If you are fascinated by the world of electronic technology, the FNIRSI S1 will become your reliable ally in your daily DIY. This advanced digital multimeter with an inverted, clear VA HD display is not just an ordinary tool, it's your reliable partner ready for any challenge. From repairing PCBs, household appliances, computers, automobiles and mechanical devices to the tasks of an electrician or installer, the FNIRSI S1 will satisfy even the most demanding users.
Versatility that makes everyday work easier
The FNIRSI S1 multimeter offers support for AC/DC voltage measurement, continuity test with audible signal, battery capacity, resistance, Hz frequency, NCV voltage test, built-in diodes, phase and neutral wire checking, temperature reading, as well as functions for automatic identification, burnout protection, automatic shutdown, data hold (hold data) and True RMS measurement. In addition, it is equipped with a flashlight and a function for intelligent measurement with minimum deviation - crucial when dealing with irregular current waveforms.
Smart solutions
Thanks to its built-in computing chip, the FNIRSI S1 works quickly, accurately and safely. The Smart Anti-Burn function with full overload and burnout protection eliminates the risk of damaging the device with faulty operation. Automatic range switching and a hold date function allow you to focus on your work as much as possible.
For the sake of the environment
The device is powered by a built-in 1,000 mAh lithium battery, charged via USB-C connection. No more replacing button or AAA batteries - it's both convenient and environmentally friendly.
Features that make every test easier
The FNIRSI S1 multimeter offers NCV voltage detection with light and sound indication, allowing you to quickly identify a live wire. With dual-function use as a multimeter and electrical test pen (Zero/Live Wire Check), the device will be perfect for both home and professional workplaces.
Included
- digital multimeter
- table-top pen tip
- temperature probe
- USB charging cable
- user manual
| Manufacturer | FNIRSI |
|---|---|
| Model | S1 |
| Diodes | Built-in |
| Automatic shutdown | Supported |
| Flashlight | Supported |
| NCV induced voltage | Supported |
| Live Mode | Supported |
| Data retention | Supported |
| Analog | Supported |
| Low voltage indication | Supported |
| Maximum range | 9999 |
| Valid value | 50Hz - 1kHz |
| Material | ABS |
| Display | VA color screen |
| Weight | 135 g |
| Power supply | Rechargeable lithium battery with 1000 mAh capacity |
| Size | 143 x 75 x 19 mm |
| Safety level | Level III 1000 V |
Warranty: 24 months
FNIRSI S1 digital multimeter
If you are fascinated by the world of electronic technology, the FNIRSI S1 will become your reliable ally in your daily DIY. This advanced digital multimeter with an inverted, clear VA HD display is not just an ordinary tool, it's your reliable partner ready for any challenge. From repairing PCBs, household appliances, computers, automobiles and mechanical devices to the tasks of an electrician or installer, the FNIRSI S1 will satisfy even the most demanding users.
Versatility that makes everyday work easier
The FNIRSI S1 multimeter offers support for AC/DC voltage measurement, continuity test with audible signal, battery capacity, resistance, Hz frequency, NCV voltage test, built-in diodes, phase and neutral wire checking, temperature reading, as well as functions for automatic identification, burnout protection, automatic shutdown, data hold (hold data) and True RMS measurement. In addition, it is equipped with a flashlight and a function for intelligent measurement with minimum deviation - crucial when dealing with irregular current waveforms.
Smart solutions
Thanks to its built-in computing chip, the FNIRSI S1 works quickly, accurately and safely. The Smart Anti-Burn function with full overload and burnout protection eliminates the risk of damaging the device with faulty operation. Automatic range switching and a hold date function allow you to focus on your work as much as possible.
For the sake of the environment
The device is powered by a built-in 1,000 mAh lithium battery, charged via USB-C connection. No more replacing button or AAA batteries - it's both convenient and environmentally friendly.
Features that make every test easier
The FNIRSI S1 multimeter offers NCV voltage detection with light and sound indication, allowing you to quickly identify a live wire. With dual-function use as a multimeter and electrical test pen (Zero/Live Wire Check), the device will be perfect for both home and professional workplaces.
Included
- digital multimeter
- table-top pen tip
- temperature probe
- USB charging cable
- user manual
| Manufacturer | FNIRSI |
|---|---|
| Model | S1 |
| Diodes | Built-in |
| Automatic shutdown | Supported |
| Flashlight | Supported |
| NCV induced voltage | Supported |
| Live Mode | Supported |
| Data retention | Supported |
| Analog | Supported |
| Low voltage indication | Supported |
| Maximum range | 9999 |
| Valid value | 50Hz - 1kHz |
| Material | ABS |
| Display | VA color screen |
| Weight | 135 g |
| Power supply | Rechargeable lithium battery with 1000 mAh capacity |
| Size | 143 x 75 x 19 mm |
| Safety level | Level III 1000 V |
Warranty: 24 months

































































































































































































