The following Scholar™ product specifications are subject to change without notice: 

ECG 	 
	Number of Leadwires	3 or 5 (selectable)
	Lead Selection 		I, II, III, aVR, aVL, aVF, V 
	Gain Selection 		0.5 mV, 1 mV, 2 mV, 4 mV full scale 
				(all ±2%)
	Frequency Response 	Diagnostic: 0.05-100 Hz (-3db) 
				Monitor: 0.50-40 Hz (-3db) 
	Isolation 	Conforms to IEC 601-1	
	Sweep Speed 	6.25, 12.5, 25, 50 mm/sec 
	Electrosurgery Protection 	Yes 
	Defibrillation Protection 	Yes 
	Pacer Rejection 		Yes 
 	 
Heart Rate Display and Alarms 	 
	Range 	20-300 bpm 
	Update Time 	Every beat 
	Accuracy 	± 1 bpm or 1% (the larger) 
	Alarm Limit Range 	80-300 bpm (high) 20-150 bpm (low) 
	Alarm Indication 	Audio, visual 
	Alarm Silence 	Yes 
 	 
Non-Invasive Blood Pressure	 
	Technique 	Oscillometric upon inflation
	Measurement Cycle 	(0-300 mmHg: std. adult cuff) 
				<40 sec average Automatic Measurement Cycles 1, 2, 3, 4, 5, 10, 15, 30, 60 min Range of Pressure 30-300 mmHg Adult 20-150 mmHg Neonate Accuracy Greater of ±2% or ±2mmHg over full range Invasive Pressure (optional)
	 
	Isolation Breakdown Voltage	4kV RMS, 5.5 kV peak from ground-related currents
	Leakage current 	10µA 
	Pressure Range 		-10 to 350 mmHg 
	Zero Offset 		± 150 mmHg 
	Probe Impedance 	300-3500 ohm input 
	Frequency Response 	0-20 Hz 
	Input Impedance 	820 Kohms @20Hz
				>100 Mohms  @DC
	Transducer Sensitivity 	5 µV/V/mmHg (exclusive of transducer accuracy)
	Zero 	Auto push-button 
	Drift 	± 0.1 mmHg/°C 
	Accuracy 	±1 mmHg over full range (exclusive of transducer accuracy)
	Scale Ranges 	-10 to 10, 0 to 20, 0 to 40, 0 to 60, 0 to
			100, 0 to 150, 0 to 200, 0 to 300 mmHg
	Display 	Systolic, Diastolic, Mean Pressure 
 	 
Temperature
	Range 	20-45° C 
		68-113° F 
	Accuracy	± 1° C (20-45° C) (exclusive of transducer accuracy)
	Display Resolution 	0.1° C or 0.1° F 
	Probe 		YSI-400 series compatible 

Impedance Respiration 	
	Measurement Method	Impedance
	Range 		0 - 150 breaths per minute
	Accuracy	Greater of ±1% or ±1 breath/min. over full range
	Sensitivity 	0.3-10 W (Adult)
				0.1-10 W (Neonate)	 

Oxygen Saturation (%SpO2) 	 
	Range 	0-99% 
	Resolution 	1% 
	Accuracy 	± 2%, (70-99%) 
			± 3%, (50-70%) 
	Method 	Dual Wavelength LED 

Trends 	 
	Tabular	24 hours (1 sample/minute)
	Memory	24 hours 	 
 	 
Display 	 
	Type 	LCD or electroluminescent (EL)
	Max. Waveforms 	3 simultaneous
 	 
Electrical 	 
	Power Consumption	<80 W Voltage Input 110-220V, 50-60 Hz Classifications
	Type of Protection 		Class I Equipment
	Degree of Protection		Type CF Defibrillator-Proof Equipment
	Protection Against Liquids	IPX1, Drip-Proof Equipment

	Degree of safety of application in the presence of a flammable
	anesthetic mixture with air or with oxygen or nitrous oxide:

	Equipment not suitable for use in the presence of a flammable anesthetic
	mixture with air or with oxygen or nitrous oxide.

	Mode of operation:	Continuous operation

Physical Properties
	Dimensions	17.3 cm H x 35 cm W x 33 cm D
			(6.8" H x 13.8" W x 13" D)
	Weight	6.3 kg (13.9 lb.)

Environmental
	Operating Temperature	15 to 35°C (59 to 95° F)
	Storage Temperature	-20 to 60°C (-4 to 140° F)
	Humidity		10-90%, noncondensing
 	 
Back Panel Outputs and Connectors 	 
	Serial Printer or Computer 	DB-9
	Central Station			DB-9
	Expansion Module		DB-9
	Data I/O (to/from Data Card) 	PCMCIA	 
	Analog				BNC

Note:
•	Performance of the monitor may be adversely affected by exposure to high levels of electrostatic discharge.