Mwholesale via eBay offers this Luggage Scale and Temperature Sensor for $3.71 with free shipping. That's a buck below our mention from last month and the lowest price we've seen. (Outside of other eBay sellers, it's a current best by a buck.) It features an LCD display and supports up to 110 lbs.
Note: This item is priced at $5.07 Canadian, and the exchange rate to U.S. dollars may vary at final checkout. It ships from Hong Kong and may take two to four weeks to arrive. It also requires one CR2032 battery, not included.