This is a replacement battery for the Fingertip Pulse Oximeter (Drive Medical model # 18700). Replacement batteries are necessary as the battery may lose charge over time.

• 3.6V Lithium Battery for Fingertip Pulse Oximeter
• 1/2 AA Size
• Long lasting

• Actual Product Weight: 0.5 lbs
• Batteries: 1 - 3.6V
• Overall Product Height: 0.5"
• Overall Product Length: 0.86"
• Overall Product Width: 0.5"
• Primary Product Color: Silver
• Primary Product Material: Lithium
• Warranty: Limited Lifetime