Shenzhen Sino Fitfaith Technology Co., Ltd.
Main products:oximeter,module
Contact Us
  • Contact Person : Mr. guo philips
  • Company Name : Shenzhen Sino Fitfaith Technology Co., Ltd.
  • Tel : 86-0755-26613951-802
  • Fax : 86-0755-26613951-804
  • Address : Guangdong,shenzhen,3-401 Shek Kwu Road, Xili, Nanshan, Shenzhen, Kim Tae-Building
  • Country/Region : China
  • Zip : 518055

LH800 EtCO2 Sensor

LH800 EtCO2 Sensor
Product Detailed
External Sidestream EtCO2 Sensor 1.Brand&New 2.Accurate Measurement 3.Type:patient/fetal/maternal monitor

Product Introduction:

       LH800 is an external plug and play sidestream co2 sensor. It does not occupy any host space and


connects to host just with one eight-pin plug. LH800 features cutting-edge technology for measurement of


instantaneous CO2 concentration, respiration rate, end-tidal CO2 concentration, inspired CO2


concentration, inspiration time and expiration time. It is generally used in patient monitor and anesthetic machine.


With a sampling rate low to 50 mL/min, it is ideal for use on adult, pediatric and infant patients; patients


undergoing procedural sedation; and short- term monitoring of intubated patients.


Product Features:

1.State-of-the-art Non-dispersive infrared (NDIR) technology, dual wavelength, no moving parts

2.Breath-by-breath CO2 monitoring

3.Sample rate low to 50 mL/min

4.Barometer pressure and temperature compensation

5.Range calibration in 0  15% by manufacturer

6.Fast warmup time ensures full accuracy within 5 minutes

7.oxygen, N2O and anesthetic compensation for accurate measurement

8.Low power consumption less than 2W

9.Fully compatible with Respronics Loflo sensor module

Technical Specifications:

Transducer Type

LH800 Sidestream CO2 sensor

Sample Rate

50 mL/min, 10mL/min.

Principle of Operation

Non-dispersive infrared (NDIR) single beam optics, dual wavelength, no moving parts

Initialization Time

Capnogram displayed in less than 5 seconds

Reaching full specifications within 10 minutes.

CO2 Measure Range

0 - 114 mmHg

0 - 15%

0 - 15.2kPa

CO2 Resolution

0.1 mm Hg 0 to 50 mm Hg

0.25 mm Hg 50 to 114 mm Hg

CO2 Accuracy

0 , 40 mmHg ,2 mmHg

40 , 114 mmHg ,5% of reading

Respiratory Rate

Range 2 to 120 Breaths Per Minute (BPM)

Accuracy 1 breath


No routine user calibration required


Automatic Barometer Pressure 400 - 800 mmHg.

User selectable O2 / N2O compensation.

Voltage Requirements

5.0 VDC 5%

Power Consumption

Less than 1.5 Watts typical.

Temperature and Humidity

Operating: 0º to 40ºC, 10 to 90% RH, non-condensing

Storage: -40º to 70ºC, <90% RH, non-condensing


Pin out:

1. VA 5.0V

2. Shield Shield

3. DGND Digital return

4. VSRC Unused

5. TxD Serial data from LH800

6. RxD Serial data from Host

7. AGND Analog return

8. SYNC Unused

Data Interface

RS232, bi-directional, 19200 baud rate, standard N-8-1

Fully compatible with Respironics LoFlo communication protocol

Data Output

CO2 gas concentration (mm Hg), End-tidal CO2, Inspired CO2, Respiratory Rate, Automatic barometric pressure compensation.

LH800 EtCO2 Sensor

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