A pulse oximeter is used to measure the oxygen content of your blood. Most modern day pulse oximeters fit over the tip of your finger and measure the oxygen saturation indirectly.
A pulse oximeter measures the oxygenation of patient's hemoglobin. To use a pulse oximeter you simply put the sensor on your index finger.
A pulse oximeter measures the blood's oxygen levels. Usually attached to a person's finger, it measures the amount of hemoglobin saturated by oxygen. It uses two wavelengths of lights which are used to make the calculation based on how much of the wavelength is absorbed by the hemoglobin.
Pulse oximeter.
The combination of an appropriately placed oximeter and I knowledge of minute by minute normal oxygen targets should guide resuscitation.
A=Spirometer(Answered by Teshome Seya)*source-Tbar's medical dictionary.A spirometer is a device that measures the volume of air inhaled and exhaled by the lungs.A spirometer is used to measure breathing.Spirometerspirometeryou donta stethascope. 
I would say the Pulse Oximeter is the better than the Handheld Pulse oximeter becasue Pulse Oximeter - Turner Medical specializes in providing our customers with high-quality, low-cost pulse oximeter from the most trusted manufacturers. Also the Pulse oximeter coast you abound $90 while the handheld pulse oximeter will coast you aroung $289
Oximeter is usually used to monitor patient's pulse, Nonin Medical was the first company in the world to present and produce the bluetooth oximeter which is attached to a patient's finger and then his pulse can be monitored wireless from distance.
A pulse oximeter measures the oxygenation of patient's hemoglobin. To use a pulse oximeter you simply put the sensor on your index finger.
The price of Nonin Pulse Oximeter vary depending on which one you'll get. They range from normal Pulse Oximeter, to handheld Oximeter. The prices ranges from $69-$500.
A pulse oximeter provides non-invasive testing of oxygen saturation levels in the blood.
An oximeter is a device to measure the oxygen saturation level in blood. I believe that a "pulse" oximeter has a sensor to measure pulse as well, though it wouldn't surprise me if some devices not having such a sensor but otherwise looking and working like a pulse oximeter were casually called that too.
Pulse Oximeters shine infrared light through the fingernail to operate.
You can purchase a pulse oximeter on Overstock.com. They offer many different options at different price points.
ear pulse oximeter
A pulse oximeter measures the amount of oxygen carried by the blood. It usually clips onto a finger and gives a readout on a digital display. Numbers should be assessed by a trained healthcare provider.
Most modern oximeters have a built in pulse reader. Your finger is placed in the oximeter, also measuring your pulse along with the % of O2 in your blood.
A pulse oximeter is a medical device that is attached to ear lobe or the finger. It measures the amount of oxygen that is in a person's blood. A pulse oximeter also measures a person's pulse rate. Doctors use this device because it gives them a non-invasive way of estimating how well a patient's heart and lungs are working. A high reading on the pulse oximeter may indicate carbon monoxide poisoning. A low reading may indicate a respiratory disease, such as chronic obstructive pulmonary disease (COPD).