Rs electronics offers controller/indicator, which has incorporated dew point, humidity, and temperature meter, all three in one instrument. The programmable instrument can work with power supply of 90-265v ac, can accept temperature sensor, either rtd or `j` or `k` type sensor. Features: the on/off type instrument can accept the humidity/dew point sensor with working on linear voltage [linear current as optional] and show the dew point level from 69°c to 20.0°c, humidity range from 0.1 to 99.9 per cent rh with accuracy of +0.1 per cent on linear voltage, tubler, high accuracy, faster response [15 sec], low drift, performance, chemical resistance with operating humidity range of a-i 00 per cent rh.