Amazon.com: Digital Greenhouse Thermometer - Max Min Thermometer for Greenhouse or Garden Maximum and Minimum Temperatures Indoor Outdoor Greenhouse Accessories : Patio, Lawn & Garden
Triple Display with Wireless Sensor, Min/Max Thermometer
Digital MIN-MAX Precision Thermometer | Zoo Med Laboratories, Inc.
Analog + Digital Mercury-Free Min/Max Thermometer – Sper Scientific Direct
Indoor/Outdoor Min/Max Digital Thermometer
Hi-Lo Memo Thermometer (Min/Max) | Agri-Pro Enterprises of Iowa