Non-Contact Alcohol Detector / Alcohol Checker TANITA HC-310 Set of 2 Used 6 times, 21 times, 25 times, 214 times Uncertain purchase date. Used item. The "sensor" sign, which indicates the sensor life of 1000 tests, is not displayed. The number of uses displayed are 6, 21, 25, and 214. Except for the one used 214 times, they are almost unused. However, the purchase date is unknown, so the one-year replacement guideline may have passed. Shipping costs are included in the bid price, so there is no additional burden. If you have a desired number of units to purchase, please ask in the questions section. The color may not be accurately reproduced due to the lighting. At first glance, there appear to be no problems that would hinder use, but there may be defects that we have not noticed. Please judge the condition from the images, and no claims or returns are accepted. Cancellations and returns due to the bidder's circumstances are not accepted under any circumstances, so please consider carefully before bidding.