Ashcroft 20-EI60R-025-0 Industrial Dial Thermometer

Ashcroft 20-EI60R-025-0 Industrial Dial Thermometer is an EI-series bimetal dial thermometer with a rear process connection and external adjustment for field calibration. It features a 2.5-inch dial and a 0 to 250°F scale, making it suitable for general-purpose temperature monitoring in heating systems, boilers, steam lines, and process vessels where a local, easy-to-read indication is needed. The sensing element is a bimetal strip that converts temperature changes into dial movement, providing a straightforward indication of process temperature. The external adjustment option enables calibration without disassembling the instrument, while the rear connection supports installation from the process side and keeps the front display accessible for quick readings. This model is designed for industrial environments requiring an analog temperature indicator and is specified for the 0–250°F range, identifiable by the 025 code in the part number, which denotes the 2.5-inch dial size. The part number also encodes the EI family (external adjustment) and the rear connection designation (R), helping to ensure compatibility when retrofitting or replacing older dial thermometers in existing installations that use rear-facing process connections.