Bulgaria's Allterco reports 91% y/y jump in Q1 cons IoT device sales Allterco/All rights reserved SOFIA (Bulgaria), April 6 (SeeNews) - Bulgarian IoT products maker Allterco [BUL:A4L] said that its consolidated sales of IoT devices in the first quarter of 2021 jumped by an annual 91% to 13.8 million levs ($8.3 million/7.1 million euro). The bulk of sales was formed by devices from the home automation brand Shelly, which accounted for 12.7 million levs of the total sales over the quarter, Allterco said in a stock exchange filing on Monday. Allterco sold 610,664 Shelly devices in the review period, of which 594,251 in Europe and 16,413 in the US.