Amazon.com: Focket Temperature Sensor, 4-20mA High Precision IP65 Waterproof Wall Mounted Temperature and Humidity Collector Transmitter/ Sensor Hygrometer Thermometer Humidity Environment Test for Greenhouses : Appliances
Multi-Sensor Thermometer with 3 Temperature Sensors
Amazon.com: PerfectPrime TC41, 4-Channel K-Type Digital Thermometer Thermocouple Sensor -200~1372°C/2501°F, 20 x 4 Data Log Storage Function : Industrial & Scientific