GRAPHTEC midi Logger GL820 instrument auction prices

As of 6 November 2026, hammerhistory.com has recorded 3 auction sales of the GRAPHTEC midi Logger GL820 instrument with a published hammer price, closed on 4 October 2026, on 1 auction site in 1 country. One sale is free to read: a 2011 GRAPHTEC midi Logger GL820 instrument sold for EUR 225 on 4 October 2026.

Known model 3 sold with a price 0 at auction now 3 seen at auction

2 hammer prices are still locked. With only 3 sales we do not sell a year of this model, because we cannot promise another sale will come in. Open a sale and buy that price on its own, EUR 2.90 each.

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All sales 3

Sold	Built	Hours	Auction house	Place	Photos	Hammer price
2026-10-04 GRAPHTEC - midi Logger GL820 - Multichannel Data Logger - 2011	2011	unknown	surplex.com	St. Georgen, DE	10	EUR 225 FREE
2026-10-04 GRAPHTEC - midi logger GL820 - Multichannel data logger	unknown	unknown	Auction house	DE	12	locked
2026-10-04 GRAPHTEC - midi logger GL820 - Multichannel data logger	unknown	unknown	Auction house	DE	11	locked

Click a sale to see that instrument with its photos and details. A hammer price under EUR 100 is free to read.

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Questions about GRAPHTEC midi Logger GL820 auction prices

How many GRAPHTEC midi Logger GL820 auction sales are on record?

3 sales with a published hammer price, closed on 4 October 2026, on 1 auction site in 1 country. 0 more closed without a sale.

Is a GRAPHTEC midi Logger GL820 at auction now?

Not at the moment. The lots of this model that come to auction appear on this page while they are open, and every sale that closes with a price is added to the table.

Are the GRAPHTEC midi Logger GL820 hammer prices free to read?

The oldest sale of every model is free to read, and so is every hammer price under the site's floor. Every other hammer price opens with an account, one sale at a time.

Hammer prices are what the auction house recorded when the lot closed, before the buyer's premium, in the currency of the sale. A sale listed on a house's own site and on its platform counts once. Doubt a figure? Open the sale and its listing is linked there. How prices are recorded.