Nellcor N-85 CO2 Monitor

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Nellcor N-85 Features

The Nellcor N-85 hand-held capnograph/pulse oximeter with OxiMax technology combines two highly advanced technologies in a convenient, portable device. Microstream Capnography helps ensure accurate end-tidal CO measurements and crisp waveforms, an extensive selection of Microstream breath sampling accessories allows you to monitor intubated and non-intubated patients including those receiving supplemental oxygen.

The Nellcor N-85 monitor delivers exceptional pulse oximetry performance even during low perfusion and signal interference. Nellcor specialty sensors include the forehead SpO2 sensor and nonadhesive SpO2 sensors.

  • Accurate monitoring even with weak pulse signals
  • Interfaces with the Nellcor™ OxiNet III remote respiratory monitoring system
  • Reliable CO2 monitoring, even in high-humidity environments
  • The low sample flow rate of 50 mL/min allows monitoring of the widest range of patients, from neonates to adults
  • Customizable and scalable to meet specific hospital and patient needs
  • Real-­time, centralized viewing of monitored patients’ respiratory status
  • Report/communicate patient information with enhanced trend-reporting tools, pinpointing significant events

Nellcor N-85 Specifications


  • Weight: N-­85: 1.87 lbs (850 g) NPB-­70: 1.66 lb (750 g)
  • Size: 8.11 in H x 3.46 in W x 2.06 in D (206 mm x 88 mm x 53 mm)
  • Displayed Parameters: N-­85: CO2 and plethysmographic waveforms, etCO2, SpO2, pulse rate, respiration rate, trend data
  • Display: Graphic LCD display (128 x 64 dots) with LED backlight (contrast and backlight control); two numeric fields, three digits each, using seven-­segment LED; two-color LED alarm bar



  • Display range: 0 to 99 mm Hg (0-­13.2 kPa and 0-­13.0 vol% at sea level)
  • Sampling rate: 50 ± 7.5 mL/min
  • Warm-­up time: 30 seconds typically; reaches steady-­state accuracy 20 minutes after power up


  • 0 to 38 mm Hg ±2 mm Hg
  • 39 to 99 mm Hg ±5% of reading
  • Respiration Rate: 0 to 150 breaths/minute

Pulse Oximeter

  • Display range: SpO2: 0% to 100%
  • Pulse rate: 20 to 250 beats/minute


Saturation (% SpO2 ± 1 SD)

  • Adults: 70% to 100% ± 2 digits
  • Neonates: 70% to 100% ± 3 digits
  • Low perfusion: 70% to 100% ± 2 digits
  • Pulse rate: 20 to 250 bpm ± 3 digits
  • Low perfusion: 20 to 250 bpm ± 3 digits

Communication Interface

  • RS-­-232 interface @ 9,600 baud; full duplex serial interface via RJ-­45 connector



  • Power requirements: AC input of 100 to 230 VAC @ 60/50 Hz


  • Type: Rechargeable NiMH
  • Battery capacity: Supplies power for four to seven hours (depending on power management); Fully recharges in approximately 4.5 hours


Operating Temperature

  • 32°F to 113°F (0°C to …45°C)
  • Storage temperature: -­31°F to 158°F (-­35°C to 70°C)

Operating and Storage

  • Pressure: 430 mm Hg to 795 mm Hg
  • Altitude: -­1,250 ft to 15,000 ft (-­381 m to 4,572 m)
  • Humidity: 10% to 95% non-condensing
  • Shock test: IEC 68-­2-­27
  • Sinusoidal vibration test: IEC 68-­2-­6
  • Random vibration wide band test: IEC 68-­2-­34
  • Drop test MIL-­STD-­810E, method 516.4-­II


  • IEC 60601-­1/EN 60601-­1, EN60601-­1-­2 second edition, EN 864, EN 865, UL 2601-­1, EN 475, EN 55011-­Class, B-­Group 1, CSA C22.2 No.601.1-­M90



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