This is the mount you'll need for electronics with T-Slot mounting.
• T-Bolt measures 0.5" x 0.5" (12.7mm x 12.7mm)
• Powerful suction pad attaches to any smooth, flat, non-porous surface including windshields and windows
• Full range of motion under the electronics: 210° Tilt, 360° Turn & 360° Rotation
• Ratcheted arm has 140° vertical motion; knob locks arm into place
• Suction pad is 3.4" (86.4mm) in diameter
• Overall length is approximately 4.5" (114.3mm)
• Recommended for electronics weighing up to 3 lbs. (1.4kg)