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- Jan 9, 2020
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I’m picking up an an apex classic tomorrow and it comes with the vdm, pm1 (with temp, orp, ph), wxm module with a energy bar. The thing is, it doesn’t come with a base unit. I’m picking it all up for $50 so I know I’m getting a good deal but is the base unit necessary? I’m assuming it is but how much would it cost?