Digital verification thermometers verify sample temperatures inside refrigerators and incubators without the use of a cable. Accurate temperature reading without sample contamination is achieved by using the liquid or glass bead filled bottle (included), which mimics the sample. All models include accredited calibration documentation that meets the requirements of ISO 17025. d and calibrated in H-B's exclusive triple accredited/registered ISO/IEC 17025:2005, A2LA accredited laboratory (Cert #2448.01), against equipment whose calibration is traceable to NIST. Includes multi-language instructions (English, French, German, Italian, Portuguese, and Spanish). Individually serialized, CE marked. Note: Not for use in ovens or freezers. Research, industrial and healthcare professionals rely on SP Scienceware for their sample handling needs. Sold worldwide, Bel-Art and H-B Instrument brand laboratory supplies include over 5,000 items from safety wash bottles to fume hoods, thermometers, racks, desiccators, hydrometers, ice buckets, scoops and spoons. Custom calibration services, plastic molding, specialty coatings and wire manufacturing are also available. Wilmad-LabGlass brand laboratory glassware complements Bel-Art and H-B Instrument with over 7000 items including NMR and EPR consumables and specialty glassware, as well as custom fabrication for individual glassware, glass repair services and OEM glass parts. SP Scienceware is a division of Warminster, PA based SP Industries which also include SP Scientific laboratory, thermal management, and pharmaceutical production equipment and SP Ableware aids for daily living.