Power your specialty professional devices with Industrial 123 Lithium Batteries whether working in construction, facility maintenance, medical center, business office or classroom. They are 100 percent leakproof in standard usage. They operate in work-site temperatures ranging from negative 40 to 140 degrees Fahrenheit. Because these batteries hold their power with up to 10 years of shelf life, you won't have device downtime. When work depends on digital thermometers, glucose monitors, laser pointers and more, you can rely on the power and protection of these Industrial 123 Lithium Batteries.