【Portable】Its size is similar to a pen, space saver and easy to handle.
【Fast heat-up】About 10 seconds from room temp to 300℃/500℉
【Custom and opensource APP】. Programming software is provided for specific soldering projects. Quick and easy processing.
【Auto sleep】Cool down when lay aside and fast reheat from sleep to preset temp
Power supply is included but could also use a Li app battery for better portability
Soldering iron tips are easy to assemble or disassemble, and replaceable for 2 types: PR-B2, PR-BC2.

ST-M5045 is a cost effective, high performance bi-polar two phase micro-stepping drive applying pure-sinusoidal current control technique. It is best suited for the applications that desired extreme low noise and heat. It operates well in an environment, where electricity supply experience instability and fluctuation

• Suitable for any small-and-medium automatic equipment with CNC controllers, such as  X-Y tables, labeling machines, laser cutters, engraving machines, and pick-place devices
• Suitable for a wide range of stepping motors, from NEMA size 17 to 34 
• For processing various pattern mold 
• For advising, such as brand, architectural mold, badge, nameplate, display boards, doorplate, furniture decoration, etc. 
• For carving portrait, scenery, handwriting, sealing, etc.

The Arduino Relay module allows a wide range of microcontroller such as Arduino, AVR, PIC, ARM with digital outputs to control larger loads and devices like AC or DC Motors, electromagnets, solenoids, and incandescent light bulbs.

This is a 5V 8-Channel Relay interface board, Be able to control various appliances, and other equipments with large current. It can be controlled directly by Micro-controller (Raspberry Pi, Arduino , 8051, AVR, PIC, DSP, ARM, ARM, MSP430, TTL logic) .

• 5V 8-Channel Relay interface board, and each one needs 15-20mA Driver Current
• Equiped with high-current relay, AC250V 10A ; DC30V 10A 
• Standard interface that can be controlled directly by microcontroller (Arduino , 8051, AVR, PIC, DSP, ARM, ARM, MSP430, TTL logic)   
• Indication LED’s for Relay output status

This Hand-held Refractometer, widely used in the manufacture or production of sugar, food, fruit, beverages etc. Versatile refractometer, perfect for sugar measurement, contribute much for the management of product quality, delivery inspection, sweetness classification and so on.

• Digital and Accurate Read
• Easy to handle
• Lightweight and durable with aircraft aluminum body
• ATC Automatic Temperature Compensation

Want more SainSmart Flexible TPU at a favorable price? We introduce you 2kg/4.4lb value pack. Same quality with more filament in a roll. 

• [Flexible and High strength] 95A hardness is similar to an o-ring. High abrasion resistance and low compression compared to rubber
• [Resistant to chemicals] resist oil, grease and etc. Durable performance even in the chemical harsh environment.
• [Easy to print] Excellent adhesion on heat bed, not necessary for extra adhesion like tape. Compatible with most Prusa i3 3D printers in the market. With bowden extruder needs to print slowly. 
• [Great for end-use parts or models] Can be used to print as functional parts or standalone prototypes. Like RC parts, case, or engineer design prototypes.