Already answered above but yeah some items don't have any tracking/configs on them including toxic blowpipe, tridents, ring of recoils, dodgy necklaces, BUT with dodgy necklaces it's easier because the item disappears when it runs out so we can always assume a dodgy necklace has >0 charges.
On my thiever bot I use dodgy necklaces and I simply ask how many necklaces to bring, usually 3 or so per trip.