Product Name: mine gas sensor test devices 

 Model: JZ-1 

 Coal safety mark No.: MFA060011 

 Description: 
 Operation of the product user-friendly interface, with beautiful appearance, convenient operation, firm structure, complete functions, a wide range of voltage regulation, measurement accuracy, the flow control and stability, pipe quick connector, easy to connect and save the gas source. Applies to the calibration of a variety of gas sensors, portable instrument. 

 The main technical indicators: 

 Item Specification 
 Detection frequency (0 to 5000) Hz, and resolution of 1Hz, 0.5 
 The output voltage (9 to 24) V be adjusted, display error ≤ 1% 
 Output current ≤ 5A 
 Working voltage AC220V 
 Dimensions 650 × 200 × 400mm 
 Weight 6kg