City Tech Automotive O2 Oxygen Sensor AA428-210 with Molex Connector

Chemical identification AO2 Oxygen CiTiceLĀ® Electrochemical sensor to detect Oxygen (O2).

Composition / Information on ingredients
Electrolyte containing potassium acetate, lead, proprietary catalyst alloy electrodes, enclosed in a plastic based housing with attached metal connections. After a short period of use, lead acetate will develop inside the sensor.  

Key Features:

  • Molex connector
  • Linear Output from 0-100% Oxygen


Measurement Range        : 0 to 100%
Response Time (T90)       : Less than 5 secs
Number Of Electrode        : 3
Output                               : 9 to 13 mV in Air
Electrical Connection         : 3 Pin Molex Connector 22-29-2031

Physical and chemical properties

  • Red, plastic sensor with Molex connector.
  • Sensor is a sealed unit

Hazards Identification 

The electrolyte and the lead inside the sensor constitute the main potential hazards, and these may become exposed should the housing be damaged.

  1. Electrolyte (will contain lead acetate)
  2. Inhalation of electrolyte: Inhalation is not an expected hazard unless heated to high temperatures. Mist or vapour inhalation can cause irritation to the nose, throat, and upper respiratory tract.
  3. Ingestion of electrolyte: May cause irritation of the mouth, throat, and stomach.
  4. Skin or eye contact of electrolyte: May cause redness, pain, blurred vision, and eye burns.
  5. Aggravation of pre-existing conditions - Electrolyte: Persons with pre-existing skin disorders or eye problems, or impaired respiratory function may be more susceptible to the effects of the substance. Lead acetate may cause harm to the unborn child and a possible risk of impaired fertility. Danger of cumulative effects.

Hazards - Lead: Exposure can cause brain damage. May cause damage to blood-forming, nervous, urinary and reproductive systems. Systems of exposure include loss of appetite, metallic taste in the mouth, anxiety, constipation, nausea, pallor, excessive tiredness, weakness, insomnia, headache, nervous irritability, muscle and joint soreness, tremors, dizziness and abdominal pain. 

Aggravation of pre-existing conditions - Lead: Exposure is more likely to cause a problem for those suffering from diseases of the blood-forming, nervous, urinary and reproductive systems. Exposure to lead may result in injury to a developing foetus.

We are the Distributor of Honeywell | City Technology Oxygen (O2) Sensors 

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