Aim-Tti Instruments Tf930.
FREQUENCY COUNTER, 10 DIGIT,0.001HZ-3GHZ; Bandwidth:-; Counter Measuring Functions:Frequency; Test Frequency Range:0.001Hz to 3GHz; No. of Digits / Alpha:10; Sensitivity:15mVrms; External Height:88mm; External Width:260mm; External Depth:235mm; Product Range:TF900 Series; Plug Type:AU, EU, UK, US; SVHC:No SVHC (15-Jan-2018); Counter Voltage:9V DC; Frequency Counter Type:Universal; Manufacturers Warranty:3; Supply Voltage:30VDC; Time Base Stability:1ppm; Weight:950g