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Palmer Wahl developed the first thermometer made in America — the Foster Cup, for use in measuring the flash point of fuel oil, in 1852. Since then, the company has continued to produce a number of other industry firsts, including the first red reading mercury in glass thermometer and the first and only NIST traceable miniature irreversible temperature recording labels. According to the company, their modern offerings include:
- Technology that includes tested know-how and state-of-the-art electronic instruments.
- Heat Spy Thermal Imaging cameras.
- Self-checking RTD digital thermometer equipment.