The Traceable WD-90000-23 Extreme-Accuracy Thermometer shows minimum/maximum and current temperatures. MIN/MAX monitors readings overnight, on weekends, or for any time period and displays the exact time and date when the MIN/MAX temperature occurred. Alarm provides two visual (LEDs) and two audio alerts when temperature rises above or falls below high and low set points. Unit displays the exact time and date when dual thermometer alarms are triggered. Alarms are programmable in 0.1° increments. Visual and audible alarms signal continuously (for days) even if temperature returns to non-alarm range. First thermometer ever designed to permit user one-button calibration.

Stainless-steel probe supplied with WD-90000-23 shows the slightest temperature change. Probe is triple purpose for liquid, air/gas, and semisolids. Accurate readings with tip penetration of 1/3-inch. Probe has a diameter of 1/8-inch, stem length of 6-1/4 inches, overall length of 9 inches and a cable length of 5 feet. Absolute high-precision thermometer is ideal for measuring temperatures in water baths, cuvettes, gas systems, reagents, standards solutions, ovens, incubators, pharmaceuticals, petroleum products, foods, and wastewater.

Traceable® Products have an individually-numbered Traceable® Certificate provided with each unit, that assures accuracy from our ISO/IEC 17025:2017(1750.01) calibration laboratory accredited by A2LA. It indicates traceability of measurements to the SI units through NIST or other recognized national measurement institutes (NMI) that are signatories to the CIPM Mutual Recognition Agreement. Each product goes through an intense vetting process before it can carry the Traceable name, thus saving users both time and money by not having to calibrate separately.