Lowe and fletcher Master Keys (36/37 Master Key)

Probe Master Key 36/37 Series will fit all New Probe Key Locking Lockers and Steel Cabinets with numbers between 36001-38000.

You can distinguish which you need because the 5 digit key number will begin with either 36 or 37 for the 36/37 Series - such as 36873 or 37145. Choose the Probe Master Key 95/96 Series to fit older Probe lockers with numbers between 95001-97000

You can distinguish which you need because the 5 digit key number will begin with either 95 or 96 - such as 95653 or 96435.