Overview Trying to raise humidity inside the grow room can be a difficult job. Commonly available small scale humidifiers often prove too small to increase humidity to a satisfactory level. These humidifiers are the only units capable of doing the job effectively and consistently. With a choice of a basic Analogue Humidistat or a more advanced Digital Humidistat that will also control a heater, you will have full control of this important factor. General Information For use in spaces up to 150m2. The units dimensions are 370mm x 370mm x 480mm. Benefits Gives control over humidity levels Improves plant growth and development Connects to any water reservoir Power consumption: 90W Humidification capacity: 2500/4000cc/hour (2.5 - 4 litres/hrs) How to Use Use with soft, purified or RO water only. Not for use with hard water as this will cause limescale build up which can break the unit.