Jinan zhongwei casting and forging Grinding Ball co., LTD is specialized in manufacturing heat treatment of wear resistant steel rods, Steel Ball factory, shandong province famous trademark, steel ball steel products is shandong famous brand products, the company has independent research and development of rotary forging steel ball automatic production line, heat treatment rod mill grinding bar automatic production lines, access to the national equipment manufacturing technology and heat treatment technology patents, to fill the gaps of domestic industry, has reached the world advanced level.The annual output of the company is 150,000 tons of Steel Balls and heat treatment grinding rods, and the products are exported to more than 30 countries and regions such as South Africa, Europe and Australia, with the annual export earning over 100 million yuan, leading the position in China. Stainless Steel Rod,Round Steel Rod,B2 Steel Round Bars,B2 Grinding Rod Jinan Zhongwei Casting And Forging Grinding Ball Co.,Ltd , https://www.cngrindingballs.com
combustible gas detector with good quality and competitive priceÂ
Applications:
JCB4 portable combustible gas detector is an intrinsically safe and explosion-proof instrument and is designed to deter combustible gas.
JCB4 combustible gas Detector is a low-cost, maintenance-free single gas monitor designed to protect personnel from dangerous combustible gas exposure in the most extreme conditions. Despite its compact size, the JCB4 combustible gas Detector includes features usually found only in larger multi-gas monitors including a large, OLED display, internal audible/visual alarms and simple push-button operation.
The monitor continuously displays ambient combustible gas readings and will alert the user when gas concentrations exceed the preset low or high levels. Added features include adjustable alarm setpoints, calibration gas values, and choice of text-only display selected by the user through a simple, push-button routine. JCB4 combustible gas Detector also has a peak/hold feature to show the highest reading during a shift and includes a special flip-cap calibration adapter for quick and simple calibration. JCB4 combustible gas Detector is covered by a two-year warranty from the date of manufacture.
It is used at the underground coal mine and mine safety inspection mainly. Certainly, it is also applied to fire fighting, confined space, chemical industry, oil and all kinds of environment that needed to measure the combustible gas.
Feature
Benefit
2-year warranty
Lowers the overall cost of ownership by providing a full 24 months of warranty coverage.
Weight of 102g
Light weight and compact size, can be worn on the belt, shirt pocket, coveralls or hard-hat.
Flip-cap calibration feature
Portable O 2  detector has a unique, built in calibration adapter to make calibration easy and eliminates the need to search for a calibration cup.
OLED display
Provides continuous display of the actual concentration of combustible gas  in the ambient environment as well as remaining battery life.
Adjustable low and high alarm setpoints
The user can configure Portable  O 2  detector r  to suit a number of different applications.
High visibility case
From a distance, it's color makes it easy for Safety Professionals to verify that workers are protected.
5 second delay shut-off protection
Portable O 2  detector  cannot be accidentally shut off since the on/off button must be depressed for five continuous seconds.
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Technical specification: Â
Â
Sensors:
Catalytic combustion sensor (combustible gas)
Range :
0-100% ( LEL )
Accuracy :
0.1%
Resolution :
0.1%
Power Source:
1500mAH Â lithium battery ; rechargeable battery
Temperature  Range :
-4°F  to 122°F (-20°C to 50°C) typical Â
Humidity  Range :
0 to 95% RH typical
Alarms:
Adjustable low and high alarm setpoints
Explosion protection
Exibd I
Protection grade
IP54
Dimensions:
 93mm × 49mm × 22mm
Weight:
102g
combustible gas detector with good quality and competitive priceÂ
Applications:
JCB4 portable combustible gas detector is an intrinsically safe and explosion-proof instrument and is designed to deter combustible gas.
JCB4 combustible gas Detector is a low-cost, maintenance-free single gas monitor designed to protect personnel from dangerous combustible gas exposure in the most extreme conditions. Despite its compact size, the JCB4 combustible gas Detector includes features usually found only in larger multi-gas monitors including a large, OLED display, internal audible/visual alarms and simple push-button operation.
The monitor continuously displays ambient combustible gas readings and will alert the user when gas concentrations exceed the preset low or high levels. Added features include adjustable alarm setpoints, calibration gas values, and choice of text-only display selected by the user through a simple, push-button routine. JCB4 combustible gas Detector also has a peak/hold feature to show the highest reading during a shift and includes a special flip-cap calibration adapter for quick and simple calibration. JCB4 combustible gas Detector is covered by a two-year warranty from the date of manufacture.
It is used at the underground coal mine and mine safety inspection mainly. Certainly, it is also applied to fire fighting, confined space, chemical industry, oil and all kinds of environment that needed to measure the combustible gas.
Feature
Benefit
2-year warranty
Lowers the overall cost of ownership by providing a full 24 months of warranty coverage.
Weight of 102g
Light weight and compact size, can be worn on the belt, shirt pocket, coveralls or hard-hat.
Flip-cap calibration feature
Portable O 2  detector has a unique, built in calibration adapter to make calibration easy and eliminates the need to search for a calibration cup.
OLED display
Provides continuous display of the actual concentration of combustible gas  in the ambient environment as well as remaining battery life.
Adjustable low and high alarm setpoints
The user can configure Portable  O 2  detector r  to suit a number of different applications.
High visibility case
From a distance, it's color makes it easy for Safety Professionals to verify that workers are protected.
5 second delay shut-off protection
Portable O 2  detector  cannot be accidentally shut off since the on/off button must be depressed for five continuous seconds.
Â
Technical specification: Â
Â
Sensors:
Catalytic combustion sensor (combustible gas)
Range :
0-100% ( LEL )
Accuracy :
0.1%
Resolution :
0.1%
Power Source:
1500mAH Â lithium battery ; rechargeable battery
Temperature  Range :
-4°F  to 122°F (-20°C to 50°C) typical Â
Humidity  Range :
0 to 95% RH typical
Alarms:
Adjustable low and high alarm setpoints
Explosion protection
Exibd I
Protection grade
IP54
Dimensions:
 93mm × 49mm × 22mm
Weight:
102g
Good Quality and Competitive Price Combustible Gas Detector
Model NO.: JCB4
Humidity Range: 0 to 95% Rh Typical
Alarms: Adjustable Low and High Alarm Setpoints
Explosion Protection: Exibd I
Protection Grade: IP54
Trademark: Topsky
Transport Package: Hard Plastic Case
Specification: SGS
Origin: Beijing China
HS Code: 9027100090
Model NO.: JCB4
Humidity Range: 0 to 95% Rh Typical
Alarms: Adjustable Low and High Alarm Setpoints
Explosion Protection: Exibd I
Protection Grade: IP54
Trademark: Topsky
Transport Package: Hard Plastic Case
Specification: SGS
Origin: Beijing China
HS Code: 9027100090