Amazon.com: PKCELL 30Pcs LR41 Battery AG3 L736 LR736 SR41 392 384 1.5V Alkaline Battery for Thermometer : Health & Household
Amazon.com: Tenergy 1.5 Volt Battery Button Cell LR41, ag3 Batteries Equivalent, Ideal for thermometers, Watches, Laser Pointers, Small Toys, Portable Electronics, and More - 20 Pack : Health & Household