CritiCare - 503DX
by CritiCare

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Pulse Oximeter 

Detect and assess changes in oxygen saturation in record time. The miniSPO2T has the same advanced DOX digital technology as Criticare's multiple parameter vital signs monitors and lets you evaluate oxygen saturation and heart rate in a broad range of patients, from neonatal to adult. Small, lightweight, and easy to use, the miniSPO2T is ideal for spot-check and transport monitoring in hospitals, clinics, private offices, and EMS.

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  • Advanced DOX SpO2 and Heart Rate for routine, periodic spot-check measurements and transport monitoring. 
  • With just one compact, ultra-lightweight, handheld monitor, accommodate all of your patients - from neonatal to adult. 
  • Unique DOX digital SpO2 technology for improved pulse recognition and artifact rejection. 
  • Fully compatible with our comprehensive line of high-quality reusable and disposable sensors.


Height5.75 in
Length 1.3 in
Pulse Rate Range18-300 BPM
Weight10 oz with battery
Operating Life24 hr
SpO2 Range0-100%
Width3.6 in

Additional Specifications

  • Pulse Oximetry Range: 1% to 99%  Resolution:1%  Accuracy: 70% to 99% range: ±2% 40% to 69% range: ±3% <40%: unspecified
  • Method: Dual wavelength LED
  • Heart (Pulse) Rate-Range: 20 to 300bpm Resolution: 1bpm Accuracy: ±1bpm or ±1%, whichever is greater
  • Displays Type: LED
  • Parameters: SpO2; pulse rate; pulse bar
  • Status: Sensor; Low Battery
  • Battery Type: 4; AA alkaline (included); life: 24 hr continuous operation
  • Operating Temperature: 0º to 45º C;32º to 113º F
  • Storage Temperature: -20º to 50º C; -4º to 122º F
  • Operating Humidity: 15% to 90%, noncondensing 4

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