• Preheated probe and sensor technology improves accuracy and repeatability.
• Soft, comfortable probe cover keeps the probe tip clean to help ensure accurate readings.
• Automatic probe cover eject button for quick and easy removal of used probe covers.
• Easy to read LCD display.
• Prominent memory button conveniently recalls last reading.
• Ergonomic design makes it easy to take temperatures on patients of all ages.

Welch Allyn/Braun ThermoScan Pro 4000 Specifications:
Calibration Accuracy: +/- 0.4°F (0.2°C) at 95.9 - 107.6° F (35.5 - 42.0°C).
Response Time: 3-7 seconds.
Power Source: Two, 1.5V AA disposable batteries or rechargeable battery pack.