The Vetrax Sensor's dimensions are are 56mm L x 27mm W x 17.5mm H and it weighs 0.8 oz.

The base-plate is 62mm L x 21.5mm W x 16.5mm H and weighs 0.2 oz.

Together the Vetrax Sensor and base-plate's dimensions are 62mm L x 27mm W x 17.5mm H and weighs 1.0 oz.