Meritline offers the La Crosse Wireless Indoor Comfort Temperature Station, model no. WT-137U, for $14.95. Coupon code "MLCQ13RN" cuts it to $9.95. With free shipping, that's tied with our November mention and the lowest total price we could find by $2. This station displays the indoor temperature and humidity. It requires one AAA battery (not included). Coupon expires after 200 uses.