Masterlock 498A Lock Box Red Calibration Kit and Accessories Excellent attenuation at low and

Excellent attenuation at low and high frequencies

The TR 3712N is a direct replacement for the TR 3710N

Additionally

Cartons of four bottles

Masterlock 498A Lock Box Red Calibration Kit and Accessories Excellent attenuation at low andSecure each lockout point on a piece of equipment with just one designated lock Capture the keys from those lockout points by placing them in the lock box Each authorized employee locks one personal safety lock onto the box, removing them only when their work is complete Exclusive Latch Tight feature ensures that keys cannot be accessed until the last lock is removed Durable powder coated red finish with an easy to grip, ergonomic handle Lockout