Russ, go to AcuRites' Knowledgebase page. You can get there via the forum page. Search on VN1TX. You will see products in the results that bear that marking as at least part of their product ID. Hope that helps.
Russ if I see this right your 1010 is a mono chrome display for the 5 in 1 sensor, your VN1TX is a 5 in 1 sensor. You can replace your 5 in 1 with either the standard 5 in 1 or the pro model the choice is up to you.