Chauvin Arnoux CA 850 [P01184101] Manometer Digital with Carry Case, -100 to 100 psi. The Chauvin Arnoux CA850 Manometer Digital with Carry Case is designed to provide accurate air pressure measurements. It can obtain both relative and differential readings, making it useful for checking the functioning of air conditioning units and medical equipment. The digital manometer features two connection pipes which are used to read the air pressure environment. Pressures within the range of -6.89 and 6.89 bar can be measured precisely by the manometer, and 0.3% full-scale accuracy is offered. With features such as the auto-stop function and measurement hold option, users have the flexibility to perform a manometer test quickly. The digital manometer can also be used for maximum and minimum pressure monitoring, in order to detect any spurious faults. A manometer designed for use on the go, the Chauvin Arnoux CA850 Manometer Digital with Carry Case is highly portable. The handheld device weights in at just 220g, and is less than 19 centimetres in length. With dimensions like these, it is easy to see why it is the tool of choice for professionals who carry out pressure tests in a variety of places.  The six-button user platform of the Chauvin Arnoux CA850 Manometer Digital with Carry Case couldn’t be more straightforward. Each function is clearly labelled, including the instant power button. Above this interface is a wide digital display, which is backlit for use in dark environments. Every time you collect a reading with digital manometer or carry out a full manometer test, the recording will be stamped with a time and date. This makes it much easier to organise results in an efficient manner.