Choose the display you prefer for these tough soil thermometers.Built of tough, corrosive-resistant stainless steel, these pocket-sized testers are available with digital or analog easy-to-read displays. Dual mode digital tester features slow updates at 15-second intervals or fast updates every second. Measures temperatures from 0° to 160° F with ± 2°F accuracy. Economical analog tester measures 25° to 125°F with ± 1°F accuracy. Adjustable nut provides quick calibration.