Hall effect specs, best option for a magnet 10 millimeters away

[buck converter]

the magnets I am using:https://www.amazon.com/gp/product/B01M4FSVI0/ref=ox_sc_act_title_2?ie=UTF8&psc=1&smid=A282R8VORGGS6U

I like the DRV5000 series sensors for its low-power capabilities. For my project, there would be 2 of these cute magnets on rotating wheel next to each other with opposite poles facing a sensor. Using single latching hall sensor and a micro-controller, i could determine speed and direction after a few rotations. There are a few options for this sensor with varying sensitivity

Multiple Sensitivity Options (BOP / BRP)
– 1.3 / –1.3 mT (FA, see Figure 24)
– 2.7 / –2.7 mT (AD, see Figure 24)
– 6 / –6 mT (AG, see Figure 24)
– 12 / –12 mT (BC, see Figure 24)

http://www.ti.com/lit/wp/slyy058a/slyy058a.pdf
if I do not want the sensor to trigger until it is within 5-8mm, which sensor should I use? Or am I on the wrong track?

[ebclr]

http://ams.com/eng/Products/Magnetic-Position-Sensors