1、The combination of red pen and lighting flashlight, the design of more maintenance work understanding. 2、Built-in over-current protection circuit, no need to worry about overload damage to the machine. 3、600mAh large capacity lithium battery, low loss, long-lasting standby, 8 hours long theoretical standby time. 4、Adopt high-quality laser head, longer penetration distance and longer service life. 5、Replaceable ceramic core design, effectively extend the life of the red pen. Features: 1. The combination of red pen and lighting flashlight, the design of more maintenance work understanding. 2. Built-in over-current protection circuit, no need to worry about overload damage to the machine. 3. 600mAh large capacity lithium battery, low loss, long-lasting standby, 8 hours long theoretical standby time. 4. Adopt high-quality laser head, longer penetration distance and longer service life. 5. Replaceable ceramic core design, effectively extend the life of the red pen. 6. Flip-top pen cap to protect the laser head, tap the side button to open the flip cover, more convenient to operate. Specification: Model: SGV-15 Output Power: >10mW Rated Power: 15MW Output Wavelength: 650nm Measuring Distance: 1-15km Interface Type: 2.5mm universal adapter Working Temperature: -20 to +60 ° C Storage Temperature: -40 to +85 ° C Power Supply Mode: Built-in lithium battery Package List: 1 x Red Light Pen 1 x USB Cable 1 x Ceramic Core 1 x Lanyard