i-Tronics via Amazon offers the ThermoPro TP63 Digital Wireless Hygrometer / Thermometer for $27.99. Clip the $3 off coupon on the product page and apply code "SLDREPHG" to knock that to $19.39. With free shipping, that's the lowest price we could find by $9. It displays indoor and outdoor temperature in Fahrenheit or Celsius and shows high and low temperature and humidity records. Features include a 3" backlit LCD, rechargeable outdoor sensor with 200-foot range, and magnetic mount. Deal ends February 1.