Bosean K-600 O2 Oxygen Gas Detector with Pump may be a new intelligent gas detector, that adopts an advanced integrated circuit, with normal intelligent level style technology, and proprietary digital analog hybrid communication technology. The Oxygen Gas Detector is of excellent sensitivity and repeatability, that makes it terribly simple to use and maintain.
Application: Petrochemical plant, Mining, Steelworks, Industrial area.

K-600 portable gas detector with built-in pump may be a new intelligent gas detector, that adopts an advanced integrated circuit, with normal intelligent level style technology, and proprietary digital analog hybrid communication technology. The detector is of excellent sensitivity and repeatability, that makes it terribly simple to use and maintain.
Application of K-600 Portable gas detector with built in pump: Industrial area,  Petrochemical plant, Mining, Steelworks.

Greystone CMD5B1100 Room Carbon Dioxide Transmitter is a device used to measure carbon monoxide levels measuring range of Upto 0 -300 ppm with the use of an electrochemical sensor for accuracy and reliability in the most critical applications. This Greystone Carbon Dioxide Transmitter has feature of  2-wire loop-powered output

Applications: Industrial and laboratory, HVAC, and Duct Units

Honeywell CMD5B1000 Carbon Monoxide Monitor CMD series carbon monoxide detector uses an electrochemical sensor to watch the CO level and outputs a factory calibrated 4-20 mA, 0-10 Vdc, or Modbus signal. Optionally, the device could also be designed with an alarm relay.

Applications: The HCMD5B1 series carbon monoxide detector is designed for use with electronic controllers in domestic or commercial heating and cooling systems