Oregon Scientific THN132N Wireless Temperature Sensor is a low-cost sensor with a water-resistant casing and a battery cover thats easy to slip on and off. Can be set to one of three different channels. Red LED light notifies when data transmission has been sent.

Features:

• Transmits up to 100 feet from main unit (unobstructed)
• Temperature range: -22 to 140 degrees Fahrenheit
• Resolution: 0.2 degrees Fahrenheit
• Requires 1 AA battery (included)
• 1 year manufacturer warranty
• User Manual