Pictured and featured in this condensed catalog are the company’s temperature and surface-sensing thermostats. Listed are features of the Series 2000 linear temperature sensor and the Series 5024. In regard to surface-sensing thermostats, featured are the Series 6600 PC board thermostat, Series 6700, Series 5003, Series 5004, Series 5005, and Series 5011. On the back cover is information and pictures of immersion-sensing thermostats, including the Series 5020, Series 5021, Series 5100, and Series 6024. The company says it specializes in customer-specific thermal sensing products for hvac.