Trolmaster Dry Contact Station Filters Complies with NFPA standard 90A

Complies with NFPA standard 90A & 90B

Displays ambiant relative humidityDay and night setpoints adjustable from 20% to 90%Adjustable differentialOperating mode: humidification or dehumidification3-year warranty20AMPS/120V/60HZMade in North America

This organic fertilizer can be applied using a sprinkling can or clog free hose end garden feeder

variable and off

Trolmaster Dry Contact Station Filters Complies with NFPA standard 90AThe Trolmaster DSD 1 Dry contact module provides a simple and flexible solution to users who want to connect & control devices to the Hydro X using a dry contact or relay to activate the device. Some equipment requires either normally open or normally closed contact closure in order to activate the equipment. The DSD 1 is the product that you need to control those types of devices. * The DSD 1 plugs into a standard Nema 120 volt 15 20 amp power outlet