HB Instrument Company Dual-Scale Bi-Metal Dial Thermometers 225 Mm 87/8" Stem Length. Combining top-notch and uncompromising quality with an affordable price the HB Instrument Company Dual-Scale Bi-Metal Dial Thermometers 225 Mm (87/8") Stem Length 21690/ 61161-036 can fulfill your laboratory needs while still offering a great value for the money. Product Category Description: Read in C and F Stems in Varying Lengths Rugged easily-read temperature gauges for laboratory and industrial use. Stainless steel case polycarbonate lens and external dial adjustment by Allen screw. Stainless steel connecting nut with 12.7mm (1/2") NPT threaded connection. Celsius scale marked in red and Fahrenheit scale in black. Accuracy within 1percent of range over entire scale. Head diameter: 76mm (3"). Stainless steel stem in standard lengths as listed. For correct temperature indications the stem should be immersed at least 50mm (2") in liquids and 100mm (315/16") in gases. Precisely calibrated bi-metal element. Specifications for HB Instrument Company Dual-Scale Bi-Metal Dial Thermometers 21690 225 Mm (87/8") Stem Length : Range: 10 to 260 C (50 to 500 F) Unit: Each (Please note that the description and stock photo may not correspond to the specific model listed above) We offer only genuine HB Instrument Company products authorized for sale in the U.S. and other markets so you can be sure that you are buying authentic Labware & Accessories with a full manufacturer's warranty in addition to our own 100percent Satisfaction Guarantee. We are your premier online distributor for HB Instrument Company Labware & Accessories. We are an authorized supplier to all federal and state government agencies as well as to research and educational institutions and can facilitate volume orders on many types of laboratory equipment lab consumables and other products to help fulfill your specific needs. We offer Free Shipping and FREE USPS shipping to APO and FPO addresses on all orders in our store over 49. Please refer to our APO/FPO Shipping and Export Restrictions for more information on export to APO/FPO addresses. In addition to the HB Instrument Company Dual-Scale Bi-Metal Dial Thermometers 225 Mm (87/8") Stem Length 21690/ 61161-036 we carry a full complement of Labware & Accessories as well as other product offerings from HB Instrument Company. We also carry a full line of HB Instrument Company accessories to help meet your laboratory and scientific needs. For a complete selection of HB Instrument Company Labware & Accessories please visit our HB Instrument Company page. For more brand name Labware & Accessories please visit our Labware & Accessories store section. To see our complete line of lab medical industrial and scientific products please see our science and lab equipment online catalog. HB Instrument Company Dual-Scale Bi-Metal Dial Thermometers 21690 225 Mm (87/8") Stem Length