Create your next promotion with promotional products from GarrettSpecialties.com. Choose from a large selection of diverse logo items and advertising specialties. Thermometers. Be prepared when the flu and cold season returns. A thermometer is a device used to measure temperature so you can catch a fever. We offer promotional thermometers such as Digital display thermometers, ear thermometer and thermometers with large displays. So get your brand recognition that Custom Thermometers can provide by imprinting your logo or message.