Pulse Oximetry

920M Plus Handheld Oximeter

Oxygen saturation meter

The 920M Plus and 2500A handheld pulse oximeters provide on-the-spot oximetry readings, and are designed to be easy to use for both healthcare professionals and patients. They feature a bigger display, better performance and a 72-hour memory.

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Specifications Show all

Oxygen Saturation Range
0 to 100%
Pulse Rate Range
18 to 300 beats per minute
General system
13.8 cm x 7.0 cm x 3.2 cm (5.4" x 2.8" x 1.3")
Weight (with alkaline batteries)
210 g (7.4 oz)
Weight (with NIMH rechargeable battery pack)
230 g (8.1 oz)
3 years
Oxygen Saturation
70-100% +/- 2 digits for adults using Finger Clip Sensors/70-100% +/- 3 digits for adults using Flex, Flexi-Form, or Reflectance Sensors/70-100% +/- 4 digits using Ear Clip Sensors/70-95% +/- 3 digits for neonates using Infant or Neonatal Sensors
Pulse Rate
+/-3, +/-1 digit
Operating temperature
-20°C to 50°C (-4°F to 122°F)
Storage/Transportation temperature
-30°C to 50°C (-22°F to 122°F)
Memory Capacity
72 hr
Pulse Quality
LED, tri-color
Numeric Displays
3-digit, 7-segment LED, red
Low battery
LED, yellow
Operation humidity
10 to 90% non-condensing %
Storage/Transportation humidity
10 to 95% non-condensing %
Operating altitude
Up to 12,000 meters (40,000 feet)
Hyperbaric pressure
Up to 4 atm
Power Options
Four 1.5 V AA size alkaline batteries (100 hours typical operation)
Rechargeable battery pack
NIMH rechargeable battery pack (45 hours typical operation)
AC Power
Charging stand