Eberline E-120 Survey Meter

Measures 0 - 50 mR / h over three scales for gamma.
Indicates 0 - 60,000 CPM over three scales for beta.
This model also has a manually adjustable response time.
Uses (2) "D" size 1 1/2 Volt Batteries and changeable probes with a BNC Connector.
Dimensions: 6 3/4" Long x 3 1/2" Wide x 6 3/4" Tall