The Paterson Photographic Thermometer is a high-precision glass spirit thermometer designed for monitoring chemical temperatures during photographic processing. With a length of 12 inches (30 cm), it features easy-to-read dual temperature scales in both Celsius (15°C to 65°C) and Fahrenheit (60°F to 130°F), marked in 0.5°C increments.

Calibrated and certified for accuracy within ±0.3°C, it ensures consistent results, making it an essential tool for both color and black & white film development. Its reliable performance and clear display make it ideal for use in darkroom environments, where maintaining the correct temperature is critical to achieving high-quality results.

Whether you’re processing color prints, developing black & white negatives, or working with alternative processes, the Paterson Thermometer delivers dependable accuracy and ease of use.