Does the probe fall out when the handle...
Does the probe fall out when the handle is not attached to the blade?
The probe only comes out when you want it too. I dig all day with the probe safely secured inside the shovel handle, and when the handle shaft is detached from the shovel blade, the probe is secured in the shaft by a spring clip on one end and the t-handle on the other. In short: the probe only comes out when you remove it via the removal of the T-handle.I've had this setup for 3 years.