Oakton WD-35626-00 Acorn Thermistor Thermometer, Temp 4, -40 to 125°C, 5.5" L x 2.7" W x 1.3" H

Thermistor thermometry is based on the principle that metal oxides change resistance with a change in temperature. Our thermistors decrease in resistance as the temperature increases. This resistance change is detected by the meter where it is converted and displayed as a temperature reading. Why Choose a Thermistor? Thermistors have the excellent accuracy over the biological or ambient temperature ranges when compared to RTDs or thermocouples. Response times are generally faster than RTD probes. Ideal for routine temperature measurements, these thermometers offer the convenience and functionality of expensive meters at an economical price. Max/min key momentarily displays maximum or minimum value; or use with HOLD key to update display only on new maximum (minimum) value. Additional features include under range and over range error messages and manual user calibration. The rugged, dependable Acorn Temp 4 meter is compatible with all Series 400 thermistor probes, allowing you to customize your probe to your specific application, or use with probes you already have! Ideal for routine temperature measurements, these thermometers offer the convenience and functionality of expensive meters at an economical price. Max/min key momentarily displays maximum or minimum value; or use with HOLD key to update display only on new maximum (minimum) value. Additional features include under range and over range error messages and manual user calibration. Specifications: Temp Range: –40 to 257°F (–40 to 125°C). Resolution: 0.1°F (0.1°C) from –147.8 to 391.8°F (–99.9 to 199.9°C); 1.0°F (1.0°C) outside this range. Accuracy: +/- 0.4°F (+/- 0.2°C) from –147.8 to 391.8°F (–99.9 to 199.9°C); +/- 4.0°F (+/- 2.0°C) outside this range. Input connector: 6.3mm phono jack. Display: single-line LCD. Power: four 1.5 V AAA batteries (included), for >200 hours continuous use. Probe: one 400-series thermistor probe (not included). Dimensions: 5.5" x 2.7" x 1.3" (14 x 7 x 3.5 cm). Weight: 0.9 lb (408 g) Oakton #: WD-35626-00