Best Thomas Hydrometers

Combination of all three with a resolution of 0.01 degree and an accuracy +/-0.05 degree C within +/-2 degree C of standard range. Units read in degree C and degree F. Stainless-steel probe supplied with units 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", stem length of 6.25", overall length of 9" and a cable length of 5 feet. Absolute high-precision thermometer is ideal for measuring temperatures in water baths, cuvets, gas systems, reagents, standards solutions, ovens, incubators, pharmaceuticals, petroleum products, foods, and wastewater. Display 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 0.1degree 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. To assure accuracy an individually serial-numbered Traceable certificate is provided by our ISO 17025 calibration laboratory accredited by A2LA. It indicates traceability to standards provided by NIST (National Institute of Standards and Technology). High-impact, chemical-resistant ABS plastic case. Measures 2.75" width by 4.25" height by 0.75" thick. Weight is 5 ounces. Stand, Velcro, magnetic strips, and wall mount allow placing thermometer anywhere. Supplied with a Traceable Certificate, stainless-steel probe, and two AA batteries for continuous, 1-year always-on monitoring.