BATTERY OPERATED HUMIDITY INDICATOR

RHT802 is a microcontroller-based, high performance battery operated, RH+T Indicator. The product is certified Flameproof (Explosion-proof / Ex d ) for Gas Groups I, IIA and IIB. The enclosure is IP65 certified. It has an integral dual 4-digit LCD display. The circuit is designed for ultra-low power consumption. This gives a battery life in excess of 1 year with a standard 9 volt alkaline battery. Parameters which can be configured are unit, bias and sampling interval. 

It is available in two versions.

Basic Version : This is an Indicator with no external push-buttons available to the user. Parameter programming can be done using the keys inside the enclosure. The enclosure has to be opened for this purpose. 

Version with MIN/MAX function : This is the Basic Version, with two external Push-button Switches provided. Using these, the user can operate the MIN/MAX function, and also change programmable parameters without opening the enclosure.