Microprocessor waterproof portable oxygen meter, dissolved oxygen measurement results in ppm or% saturation of dissolved oxygen. Show 0 至 temperature range 50 ° C, resolution 0.1. With automatic temperature compensation can also be manually height and salinity compensation. With a polarographic dissolved oxygen electrode, built-in temperature sensor. HOLD button to lock the reading. You can use battery (with a low battery function) or 12V power transformer. 
 Main Features 
 * A wide range of salinity and altitude compensation * waterproof design, suitable for field measurements 
 * Automatically * 100% single-point calibration measurement results to ppm (mg / L) or% said 

 Tips: In order to extend the life of the electrode, dissolved oxygen membrane for care and maintenance is very important. It is recommended that you regularly change the electrolyte 

 Dissolved oxygen 
 Measuring range 
 DO: 0.00 to 45.00 mg / L (ppm) oxygen saturation: 0.0 to 300.0% 

 Resolution 
 DO: 0.01 mg / L (ppm) oxygen saturation: 0.1% 

 Accuracy 
 ± 1.5% FS 

 Calibration mode 
 100% calibration in the air 

 Temperature 

 Degree 

 ° C 
 Measuring range 
 0.0 to 50.0 ° C 

 Resolution 
 0.1 ° C 

 Accuracy 
 ± 0.5 ° C 

 Salinity compensation range 
 0 to 80 g / L (ppt) (Resolution: 1 g / L) 

 Range of highly compensated 
 0 to 4000 meters (resolution: 100 m) 

 Temperature compensation 
 Automatic temperature compensation 0 to 50 ° C 

 Electrode type 
 H5HI76407 built-in temperature sensor dissolved oxygen electrode, 

 Automatic shutdown 
 Automatically shut down after 4 hours standby 

 Power mode 
 4 x 1.5 AA batteries or AC230V/12Vdc power adapter (with optional) 

 For the environment 
 0 to 50 ° C (32 to 122 ° F); RH max 100% 

 Dimensions Weight 
 Host size: 196 × 80 × 60 mm; Weight: 500g 

 Standard configuration: H5HI9146-04 
 Host, H5HI76407 dissolved oxygen electrode built-in temperature sensor, cable length 4 m, H5HI76407A / P oxygen membrane, H5HI7041S electrolyte, special carrying case, manual in English