Electronic humidistat Two step humidistat with fast response sensor Two independent volt-free control relays Visible "High RH" alarm Possible to use also for humidification Two closing contacts: Two independently programmable relays with adjustable hysteresis. Possible to use for both dehumidification and humidification. Suitable for Hi/Lo/Off control of one unit, On/Off control of two separate unit or On/Off control of one unit plus remote high/low RH alarm. Display and diodes: High visibility RH display (15 mm). Neon lamps indicate relay operation. Display flashes if ‘High RH’ set point is exceeded. Sensor: Honeywell fast response capacitive type moisture sensor. Factory calibrated (accuracy < ±2%RH). Optional: available for wall or duct mounting. Option: External display. Display and key set via a 25 m low voltage cable. DISPLAY: RJ9 cable low voltageStandard 25 m. Optional extension kit, (200 metres max). EH4 and standard room sensor IP65. Room sensor: low voltage 3 m. Optional 25 meters RJ9 extension cable (50 meters maximum) Option: duct sensor, IP-65

Dimensions: Height: 100 mm, depth 60 mm, width 100 mm Programming: Four push-buttons for programming Mounting: 4 screw holes, 04mm, towards the wall Option: Separate display box with 25 m or 50 m low-voltage cable IP65 duct sensor can also be mounted on wall Cable with amphenol plug to control single phase dehumidifier. combined with supply to the EH4 Measuring range: 0-99%RH (non condensing) Accuracy: <±2%RH in the full measuring range Response time: At low air speed, 30 second Mounting: Wall assembly Sensor type: Room sensor, 3 m sensor cable. Protection class: IP 65 (housing) Option: Ductsensor....