This offer was fetched from reverb.com. You cannot contact the seller via ModularGrid. You have to visit their site.
Look up onUp for sale is an Analogman AMAZE1 — the tap tempo and modulation controller designed specifically for the Analogman ARDX20 Analog Delay. This is the updated, smaller 2017 revision of the original AMAZE0, and it’s a relatively low-production boutique unit straight from one of the most respected names in the pedal world.What it does: The AMAZE1 gives your ARDX20 tap tempo (including dotted eighth note subdivisions and more), multiple modulation types with adjustable speed, and 8 programmable preset banks — each with its own stored delay time and modulation settings. Connects to the ARDX20 via TRS stereo cable (included). The right jack doubles as a remote footswitch input (e.g. Boss FS-6), a tap tempo output to sync other pedals, or even a MIDI tap tempo controller.

If you had an Unicorn Account you could see a chart with the price development of this module and the average price asked for this module.
About the Unicorn AccountDisclaimer: Modules listed for sale on the ModularGrid Marketplace are offered explicitly by their respective owners. ModularGrid is not affiliated to the sellers and takes no legal responsibility in any transaction. The internet is a rough place and fraudulent behavior can occur. Always prefer having Buyer Protection when you make a purchase using PayPal. Don't use Friends & Family unless the seller is your friend or family!