Sensitive gas detector for multi gas like EX, Co, O2, H2S (flammable gas sulfide, carbon monoxide, oxygen, hydrogen) NM-4

1 Piece
$120.93(1 - 499 Pieces) $102.33(500 - 1999 Pieces) $93.02(>=2000 Pieces)
Sensitive gas detector for multi gas like EX, Co, O2, H2S (flammable gas sulfide, carbon monoxide, oxygen, hydrogen) NM-4
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Warranty: 1 year
Customized support: OEM, ODM
Place of Origin: Jiangsu, China
Μάρκα: NORM
Model Number: NM-4
Πιστοποίηση: IECEE
Βασικές πληροφορίες
Place of Origin: Jiangsu, China
Μάρκα: NORM
Πιστοποίηση: IECEE
Model Number: NM-4
Πληρωμής & Αποστολής Όροι
Packaging Details: Aluminum box
Περιγραφή προϊόντων


In the daily production of petrochemical, iron and steel and chemical engineering industries, workers often encounter various flammable and toxic gases, and are prone to accidents without proper safety protection.
As a personal safety protection instrument, explosion-proof portable methane gas detector for personal safety plays an important role in industrial production safety.


Model NM-4
Gas types EX H2S CO O2
Measuring range (0~100)%LEL (0~100)PPM (0~1000)PPM (0~30)%VOL
Measuring accuracy ±3%FS ±3%FS ±3%FS ±3%FS
Resolution 1%LEL 1PPM 1PPM 0.1%VOL
Low alarm 20%LEL 10PPM 200PPM 19.5%VOL
High alarm 50%LEL 20PPM 500PPM 23.5%VOL
Response time <30s <30s <30s <30s
Display real-time data and system status on the LCD screen
Working environment -20℃~50℃, <95% RH (no condensation)
Working voltage DC3.7V (lithium battery of 2000mAh)
Charging time 6h~8h
Standby time >8 h
Lifespan of the sensor 2 years
Warranty 1 year
Size of product and package
Product Package Carton(12pcs)
130*60*45mm /200g 205*150*80mm/650g 45*35*25cm /9kg


Transportation and payment

Our Company


1. Q :Are you a trading company or a factory?
A :Factory (We produce, we sell).

2. Q : Is your company accept customization?
A : We do customizing service for customers. OEM/ ODM is welcome. Any logo and any color is up to you.The English copy of manual is also available.

3. Q : What's the MOQ?
A : Regular products only 1 standard carton. but no limit for sample order!

4. Q : How to place an order?
a: Send us an inquiry
b: Confirm your wanted products
c: Confirm the price, freight and other details
d: Complete the payment in Alibaba
e: We start production and arrange the shipment
f: You got your products
g: We get the payment

5. Q : What's the delivery time after an order placed?
A : It depends on whether we are in stock or not. Our standard arrangement time is 3 days if we have stock, otherwise it will be decided by factory production. Generally, it needs 10-45 days of production according to the quantity of your order.

6. Q : What Shipping way Customer can choose?
A : DHL/FEDEX/UPS/EMS all is ok, it is base on Customer's prefer! and we can advise the suitable shipping way base on the customer's order quantity!

7. Q : What's the warranty of the product?
A : We offer 12month warranty. Our policy: Within the warranty period, If there is any quality problem, please send us photos to show the problem.And then we will decide to send you parts or you send the instrument back to us to repair or exchange. Please make sure to contact us first instead of sending it to us directly. You only need to pay double-run freight.

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