• Beijing Zetron Technology Co., Ltd
    Hello, I already used the equipment in an aluminum smelting plant in Mexico and I was surprised by the function of your company's laser device.
  • Beijing Zetron Technology Co., Ltd
    Good gas leak detection instrument !!! High accurate test values :D
Contact Person : Lisa Niu
Phone Number : +86 15699785629
Whatsapp : +8615699785629

CRH Fixed Gas Detector 4 LED Numerical Code Display Infrared Carbon Dioxide Transmitter

Place of Origin China
Brand Name Zetron
Certification CE, ISO13485, ISO9001
Model Number CRH Series
Minimum Order Quantity 1
Delivery Time 3-7 days
Payment Terms T/T, D/A, L/C, D/P, Western Union, MoneyGram
Supply Ability 1000 set/month

Contact me for free samples and coupons.

Whatsapp:0086 18588475571

Wechat: 0086 18588475571

Skype: sales10@aixton.com

If you have any concern, we provide 24-hour online help.

Product Details
Measurement CH4 Warming Up Time 30s
Size 195*145*195mm Weight 15 Kg
Color Blue Type Fixed Gas Detector
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CRH Fixed Gas Detector


ISO13485 Fixed Gas Detector


CRH Carbon Dioxide Transmitter

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Product Description

Infrared Methane Gas Transmitter



CRH series infrared carbon dioxide transmitter is used in online monitoring and to display the carbon dioxide concentration in the air, and to transmit the signal to the control center. It has high precision, long service life, good stability, and high cost performance.




• Adopt international advanced NDIR non-dispersed infrared gas analysis technology.
• Short response time, high precision.
• Stable performance, long calibrating period, less maintenance.
• Can be used in anaerobic atmosphere .
• Long service life, no sensor intoxicating phenomenon .
• 4 LED numerical code display.
• Has the function of temperature compensation, automatic zero correction.


General Parameter
Measurement method Electrochemical
Components CO, H2S
Range C0:0-100ppm, 0-500ppm
  H2S:0-100ppm(can be customized)
Warm-up time 30S
Response time T90 < 20 s at 20 ℃
Working voltage 8-25V
Output RS485/4-20mA
Woking temperature -10-55 ℃
Dimension 195*145*105mm
Lifespan 5 years




Fixed CO2 gas transmitter is an ideal instrument with alarm function to monitor the concentration of CO2, which is widely used in chemical industry, mine, fermentation areas in wineries, metallurgy, dairying, workshop, storage as well as the leakage of CO2.

6 in 1 Portable Multi Gas Detector 2




Q: When do you reply to messages?
A: We will reply you for your inquiry in 24 hours.

Q: When do you send the products? And how do you send it ?
A: For the small order, we will send out the goods with 5 days,If have stock ,we will send immediately.
We send them by ups, fedex, tnt or dhl. For big order, normal is 20 days will finish.

Q:Do you accept OEM or revised logo, color, model,size?
A:Yes, we accept OEM for the qualify buyer. We can make the products according to customer personal requirement.

Q: How about the quality of the managements ?
A: We have a complete quality control system , all of our products will be fully pre-inspection by QC departments before ,shipping to you . We have the certification of ISO,CE we could send the certification test of our company to you.

Q: How about your after-sale service?
A: After sending, we will track the products for you , until you get the products.
When you got the goods, test them, and give me a feedback.
If you have any questions about the problem, contact with us, we will offer the solve way for you.