Product Details
Wide - Range Oxygen Sensor KGD - ZS - 321
Product Introduction
The KGD - ZS - 321 oxygen sensor is a five - wire planar wide -
range oxygen sensor. There is no need for a regulating resistor on
its connector. This type of sensor does not require a reference air
sample. Instead, it uses the reference pump current as a fixed
reference source to compare and calculate the oxygen content of the
measured gas.
Product Features
- New design of sensing element
- Three - layer protective tube for higher reliability and service
life
- Reduced heater voltage requirement
- High stability resistance
- Wide operating temperature range
- Fast light - off time
Technical Parameters
Item | Details |
Heater Resistance | 9Ω ± 1.5Ω |
Operating Voltage | 12V - 14V |
Maximum Operating Current | 0.65A |
Operating Temperature / Exhaust Gas Temperature | ≤930°C |
Lambda Value Output by Oxygen Sensor at 450mV | 1.002 ± 0.004 |
Light - off Time | ≤15s |
Company Profile
Xi'an Kacise Optronics Co.,Ltd. is a professional manufacturer of
measuring instruments , located in China xi’an City. Since 2008,
Xi'an Kacise focused on the development and production of pressure,
level and flow measuring instruments .

We have been specializing in manufacturing pressure, level and flow measuring instruments and related products for 10 years. Based on experienced technical
and management personnel, through efforts of our entire staff, we
have become a professional measuring instrument manufacturer and
solution provider. And we are continuously trying to improve
product quality.

Xi'an Kacise is qualified with ISO 9001-2008, GJB 9001B-2009, CE,
intrinsic safety explosion-proof and isolated safety
explosion-proof certificates, etc. which ensure that our products
comply with international standards.

Kacise sensors have already been exported to America, Spain,
Australia, Chile and 20 other countries and regions, and received
many favorable feedbacks. Our overseas distributers are also
increasing. We regard “reasonable prices, efficient production time
and good after-sales service” as our tenet, and hope to cooperate
with more customers for mutual development.

Our goal is simple: to sell the best products at the best prices,
and provides industry-leading customer service. We personally get
to know each of our customers, and we know how to discover the most
valuable part of our business , to help others achieve their goals.