Milwaukee USB Rechargeable Green Cross Line Laser REDLITHIUM USB 3521-21 + FREE USB Hard Hat Headlamp 2163-21

MAXIMUM VISIBILITY LAYOUT PRECISION

For contractors managing high-efficiency fleets, the Milwaukee 3521-21 represents a significant upgrade in layout ROI by eliminating the constant overhead of alkaline batteries while delivering superior visibility. This USB rechargeable green cross-line laser utilizes high-intensity diodes to provide 4x the brightness of standard red lasers, ensuring your crews can maintain dead-accurate alignment even in well-lit interior environments up to 100 feet.

• / High-Intensity Green Beams: Delivers uncompromised visibility up to 100' for rapid leveling across large floor plans.
• / REDLITHIUM™ USB Power: Provides over 8 hours of continuous runtime, reducing downtime and eliminating disposable battery costs.
• / Integrated Micro-Control: Features a magnetic bracket with fine-point adjustment for faster point-to-point alignment over distance.
• / Rare Earth Magnets: Amplified magnetic grip ensures the unit stays put on steel studs and metal surfaces without drifting.

TECHNICAL SPECIFICATIONS

Working Range: 100 Ft.
Accuracy: +/- 1/8" @ 33 Ft.
Laser Color: Green (High Intensity)
IP Rating: IP54 (Water/Dust Resistant)
Battery Type: REDLITHIUM™ USB 3.0Ah
Self-Leveling Range: +/- 4 Degrees
Safety Class: Class 2 Laser

WHAT'S IN THE BOX

• / (1) USB Rechargeable Green Cross Line Laser (3521-21)
• / (1) REDLITHIUM™ USB 3.0 Battery
• / (1) 2-Foot Heavy Duty Micro-USB Cord
• / (1) Carrying Case

MAXIMIZE VISIBILITY WITH THE NEXT GENERATION OF REDLITHIUM USB ILLUMINATION

The 2163-21 represents a significant engineering shift in jobsite lighting, prioritizing ergonomic balance without sacrificing the high-definition output professionals demand. By reducing weight by 20% compared to previous generations, Milwaukee has addressed the primary cause of neck fatigue during extended shifts. This unit utilizes TRUEVIEW™ technology to deliver 600 lumens of neutral white light, ensuring that wire colors and fluid leaks are identified with surgical precision. The mechanical design features a detachable bracket, allowing the light to transition from a hard-hat mounted solution to a handheld inspection tool for navigating dense mechanical rooms or dark enclosures. Integrated with the upgraded REDLITHIUM™ USB 3.0Ah platform, this headlamp provides the runtime necessary for full-shift operation and the rapid recovery of USB-C charging.

• / 600 Lumens of TRUEVIEW™ High-Definition Output for accurate color representation and clear peripheral vision.
• / Detachable light head enables handheld use for illuminating tight, hard-to-reach mechanical spaces.
• / IP54 Rated for water and dust resistance, surviving 2-meter impacts in harsh industrial environments.
• / Five output modes including Hybrid, Spot, and Flood to optimize runtime and beam intensity.
• / USB-C internal charging port for 3x faster charge times and universal jobsite compatibility.

TECHNICAL SPECIFICATIONS

Lumen Output	600 (Hybrid), 400 (Flood High), 100 (Flood Low)
Mobility	180° Tilting Head
Power Source	REDLITHIUM™ USB 3.0Ah Battery
Charging Interface	USB-C
Ingress Protection	IP54
Impact Resistance	2 Meters
Warranty	Limited Lifetime (Light), 2-Year (Battery)

WHAT'S IN THE BOX

(1) REDLITHIUM™ USB Hard Hat Headlamp (2163-21), (1) REDLITHIUM™ USB 3.0Ah Battery, (1) 2ft Heavy Duty USB-C Cable, (4) Hard Hat Clips