In the world of electronics repair and DIY prototyping and production, having the right tools can make all the difference between frustration and success. The SEQURE HT140 promises to be a game-changer with its innovative 2-in-1 design that combines hot tweezers and a soldering iron in one compact device. Here are my impressions after putting it through its paces.
 
SEQURE HT140 straight out of the case

SEQURE HT140 First Impressions

Right out of the box, the SEQURE HT140 impresses with its professional build quality and compact form factor. Measuring just 160×27×17.5 mm and weighing only 50 g, this lightweight tool feels comfortable in hand even during extended use sessions.

SEQURE HT140 display
The SEQURE HT140 features a 128×32-pixel OLED display.

The sleek design houses a 128×32-pixel OLED display that provides good visibility of all crucial information — important for those of us with older eyes who sometimes struggle with smaller screens.

The iron and all of its accessories come in a zippered carry case.

In the neat carry case, you’ll find:

  • The iron itself
  • A USB PD 65 W power supply with USB-C and USB-A outputs (with U.S. plug)
  • Adapter for European sockets (although other variants exist for Australia and U.K. outlets)
  • A very sturdy and heavy stand with sponge
  • A USB-C to USB-C cable
  • The necessary tools to switch out the tips


The device features both Type-C and DC5525 barrel connector power inputs, giving you flexibility in how you power it. It’s worth noting that versatility in power options is a significant advantage when working in different environments or on the go.

Performance and Functionality

Temperature Range and Heating

One of the HT140’s standout features is its impressive temperature range of 50–500°C (122–932°F). What’s even more remarkable is how quickly it reaches working temperature — it takes just two seconds to melt solder, drastically reducing wait times during projects.

The temperature control is exceptionally precise, with an accuracy of ±1%. This precision, combined with the relatively intuitive interface, makes it easy to dial in exactly the right temperature for whatever material you’re working with.

2-in-1 Versatility

The true innovation of the HT140 lies in its dual functionality. When used with only one of its heating elements, it functions as a standard soldering iron — precise and responsive. But switch to dual-sided heating, and it transforms into hot tweezers perfect for SMD component work.

This functionality truly shines when desoldering surface-mount components. What would typically require steady hands, hot air — and possibly multiple tools — becomes a simple operation with the hot tweezers functionality. The ability to heat both sides of a component simultaneously makes clean removal much more straightforward and reduces the risk of damaging PCB pads.

Smart Features

The HT140 comes loaded with intelligent features that enhance the user experience:

  • Three preset temperature settings for quick switching between common tasks
  • One-touch turbo boost for quickly increasing temperature
  • Auto sleep mode that activates after 60 seconds of inactivity, extending tip life
  • Temperature calibration and compensation for precision work
  • Adjustable display orientation and brightness
  • Multiple language support (English, Chinese, Russian)
  • Firmware update capability for future improvements

Power Options

The flexibility in power options is notable. The HT140 supports:

  • PD3.1/3.0/2.0 power delivery (via USB)
  • QC3.0/2.0 quick charge (via USB)
  • DC power from 5 V up to 28 V (via the barrel jack)
  • Lipo batteries (3S-6S compatible)
  • Power banks and various adapters

The device features a DC5525 connector (5.5 mm outer diameter with 2.5 mm inner diameter), which is specifically designed for higher power applications — a good match for the HT140’s maximum 140 W power capability. This is different from the more common DC5521 (5.5 mm outer diameter with 2.1 mm inner diameter) connectors often found on lower-power devices. If you have power sources with DC5521 outputs, you may need an adapter cable to connect to the HT140.

For portable use, I’ve explored two viable options:

  1. LiPo Batteries: While the manufacturer recommends 3S-6S LiPo batteries for optimal performance, I only had a 2S 7.4 V 1500 mAh battery on hand for testing. Even with this lower voltage option, the HT140 worked for basic soldering tasks, though with reduced power and slower heating. A 4S (14.8 V) LiPo would provide significantly better performance with faster heating times and more consistent temperature maintenance. You’ll need an appropriate adapter cable (such as an XT60-to-DC5525) to connect your LiPo battery to the HT140.

  2. USB-C Power Bank with PD/QC Support: Modern power banks that support USB Power Delivery (PD) or Quick Charge (QC) protocols can automatically negotiate higher voltages (9 V, 12 V, 15 V, 20 V) with compatible devices such as the HT140. This provides substantially better performance than standard 5 V power banks. Look for power banks that deliver at least 45 W for acceptable performance, though 65 W+ is recommended for optimal results — indeed the HT140 comes with a 65 W wall wart power supply with USB-C and USB-A outputs.

The HT140 has no internal battery — it requires an external power source at all times. This design choice does make it lighter, but you’ll always need it plugged in when you use it. Then again, no more bulky soldering base station brick.

Wide compatibility means you can use the tool in virtually any setting, making it viable for field repairs without access to wall power.

Compatibility and Versatility

The HT140 works with industry-standard C210 soldering tips and C120 hot tweezers cartridge tips, giving you a wide range of options for different tasks. This compatibility with established tip standards means you won’t struggle to find replacements or specialized tips for specific applications.

Whom Is This Tool For?

The SEQURE HT140 is an excellent choice for:

  1. Electronics hobbyists working with increasingly common SMD components
  2. Professional repair technicians who need a versatile, portable option
  3. Field service engineers who require reliable tools away from the workbench
  4. PCB designers who need to prototype and modify boards
  5. Anyone transitioning from through-hole to SMD work who wants to simplify the learning curve

Pros and Cons

Pros:

  • Innovative 2-in-1 design saves space and money
  • Fast 2-second heating time
  • Wide temperature range suitable for various materials
  • Exceptional temperature accuracy (±1%)
  • Multiple power options for versatility
  • Smart features such as auto-sleep and presets
  • Lightweight and portable design
  • Compatible with standard tip formats

Cons:

  • May require practice to master the hot tweezers technique
  • Maximum 140 W power might be insufficient for some specialized applications
  • Menu navigation takes some getting used to

Overall

The SEQURE HT140 2-in-1 Hot Tweezers Soldering Iron represents excellent value for money, combining two essential tools in one compact package without compromising on performance. Its innovative design addresses the growing need for SMD-capable tools in the electronics community while maintaining the versatility required for everyday soldering tasks.

For hobbyists looking to expand their capabilities or professionals seeking a portable, versatile solution, the HT140 deserves serious consideration. Its combination of smart features, precision control, and dual functionality makes it stand out in an increasingly crowded market of soldering tools.
 

 
Have you tried the SEQURE HT140? Share your experiences in the comments below.

Subscribe
Tag alert: Subscribe to the tag Review and you will receive an e-mail as soon as a new item about it is published on our website!