One of the benefits in selecting the Waterproof ph tester is that you can now replace the electrode whenever needed  keeping the body tester intact. When the tester fails to calibrate, gives fluctuating readings in buffers or shows error messages ‘E2’ or  ‘OR’ in a buffer and the procedures in the maintenance section do not  help, you need to change the electrode.

Compact, rugged and easy to use. Just aim and push the button, read current surface temperatures in less than a second. Safely measure surface temperatures of hot hazardous or  hard–to-reach objects without contact.
How it works
Infrared thermometer measures the surface temperature of an object. The unit’s optics sense emitted, reflected and transmitted energy which is collect and focused  onto a detector. The unit’s electronics translate the information into a temperature reading which is displayed on the unit. For increased ease and accuracy the laser pointer makes aiming even  more precise.

Poor air quality may cause tiredness, inability to concentrate, and even illness (i.e., Sick Building Syndrome). This instrument is ideal for monitoring indoor air quality in crowded public spaces with potentially high levels of CO2 (carbon dioxide) such as offices, factories, classrooms, hospitals and hotels. The same measurement parameters can also be used to test air from HVAC equipment. Backlit simultaneous display of CO2 level, humidity and air temperature, or the user may choose a rotating display of dew point and wet bulb temperature instead of air temperature.