FNIRSI HS-03 Plus USB-C Soldering Iron 65W with OLED Display

For electronics repair technicians and DIY enthusiasts who need a fast-heating, portable soldering solution, the FNIRSI HS-03 Plus delivers professional-grade performance in a compact USB-C powered package. This iron reaches 300°C in about 8 seconds, so you can move from cold start to soldering almost immediately. The 0.87-inch OLED display provides clear temperature readout, while the two-button interface offers intuitive control over the full 80–420°C range.

Key specifications

• Max power output: 65W
• Input interface: USB-C (Power Delivery 3.0 / Quick Charge 3.0 supported)
• Input voltage range: DC 9–20V
• Temperature range: 80°C – 420°C (176°F – 788°F)
• Heating time: ~8 seconds to 300°C
• Temperature stability: ±2%
• Display: 0.87-inch OLED
• Soldering tip compatibility: TS-series (e.g., TS101, TS80P)
• Body material: aluminum alloy
• Automatic sleep mode and auto-shutdown
• Temperature calibration and unit switching (°C/°F)
• Firmware upgradeable via USB-C
• ESD safe

Why choose it

Fast heat-up and steady temperature control make soldering joints cleaner and more reliable. The USB-C input means you can power it from a standard USB-C PD power bank or charger, offering true portability without a dedicated power station. Its lightweight aluminum body reduces hand fatigue during long sessions, and the sleep/auto-shutdown functions enhance safety and save energy.

Ideal use cases

• Electronics repair and rework
• PCB prototyping and through-hole soldering
• DIY projects and hobbyist work
• On-site service calls where portability is key

Good to know

To achieve full 65W output, a USB-C Power Delivery source capable of 9–20V is required (not included). The package includes one K-type soldering tip and a user manual. The iron is compatible with a wide range of TS-series tips, allowing you to adapt it to different soldering tasks.