Accuracy:   SpO2: (80%-100%) ±2%

Combination diaphragm/bell adult chest piece precisely machined from aluminum alloy

Runs on 2 C batteries (not included)

with an adjustable channel that supports future product options

ADC Adtemp 418N 8-Second Digital Thermometer Housebrand Accuracy: SpO2: (80%-100%) ±2%Large LCD display with color coded backlighting (green for readings in normal range and red for readings above 99. 5 degrees Fahrenheit), and ultra fast, 8 second measurement time. 2 year limited manufacturer warranty. FEATURES Oral, Rectal, or Axillary use Ultra fast, 8 second measurement Jumbo backlit display Color coded fever alert Flexible tip Dual Scale (F C) Replaceable 3V battery provides up to 2,000 measurements