Both Tendo Unit and Tendo Unit – WL measure and calculate the same parameters.
However, Tendo Unit and Tendo Unit – WL use different Sensor Units. Unlike the Tendo Unit sensor, Tendo Unit – WL sensor has extra sensor protection against the dropping barbell. The sensor protection is, therefore, making the WL sensor more durable and suitable for Olympic lift exercises.
The Tendo Unit – WL also offers a possibility to attach the sensor unit string safely on a special waist belt and measure leg’s power and velocity without positive influences of the back extension, i.e. it gives you the possibility to use the Tendo JumpMat.
This makes Tendo Unit – WL more versatile but bigger in size in comparison with standard Tendo Unit.
For detailed comparison check Tendo Unit – Compare