S600 SERIES GROUP LOCK BOXES WITH KEY WINDOW
VISUAL VERIFICATION OF SECURED
KEYS DURING GROUP LOCKOUT
The S600 Group Lock Boxes from Master Lock are made of 430-grade stainless steel to withstand the toughest environments. The rugged construction offers enhanced design features, making these lock boxes stronger and easier to use. All three models – the S600, S601 and S602 – include a clear, impact-resistant window, allowing participants to see that keys are secured inside the box during a group lockout. The stackable design facilitates storage and simplifies transporting multiple boxes.