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thermostat
DIGItaL
HEAT MAT
HEAT MAT
Plant Type
Temperature
for seed
germination
Temperature for transplant
growth
Day
Night
Verbena Family
herbs, shrubs, trees
Flowering plants
65 75 65
70 60 50
70 75 65
70 60 50
70 75 65
70 60 50
70-80 60 50
70-75 75 65
Fruits and Veggies
Salvia
Alyssum
Aster
Calendula
Dahlia
Dianthis
Petunia
Marigold
80 75 65
80 75 65
80 75 65
80 75 65
Cucumbers
Eggplant
Melons
Peppers
80 75 65
Tomatoes
80 75 65
70 75 65
Nicotiana
70 75 65
Squash
70º
68º
108º
IDEAL TEMPERATURE CHART
The ideal temperature is crucial to growing strong, healthy plants.
Excessive temperatures (too cool or too warm) will result in poor quality
growth.
HORTICULTURAL PRODUCTS
by
www.hydrofarm.com
SET-UP INSTRUCTIONS
1. Place probe down into the rooting area about 1”–1-1/2”.
2. Position thermostat up and away from seedling trays and stray water. Do not
submerge.
3. Plug Heat Mat into thermostat.
4. Plug in thermostat power cord and set maximum desired temperature.
PROGRAMMING THE CONTROLLER
1. To adjust the temperature setting, press and hold ‘SET’ button for 3 seconds to
enter the temperature selection mode; press the ‘5’ or ‘6’ button to adjust the
temperature. Press ‘SET’ button again to select the displayed temperature as the
target.
2. Press ‘SET’ button to display the preset temperature; current measured
temperature will be shown when no button is activated.
3. To change unit display press and hold ‘6’ button for 3 seconds to display in
Celsius. Press and hold ‘5’ button for 3 seconds to display temperature in
Fahrenheit. The appropriate indicator LED will be lit.
4. When the unit is plugged in, the “POWER” LED becomes lit, the heat mat is on
only when the “HEATING” LED is lit
5. When the preset temperature is reached, the “HEATING” LED will turn o, and
there is no power to the heat mat.
ADDITIONAL INFORMATION:
• Ifthethermostatremains“on”(deliveringpowertotheheatmat)formorethan5
consecutive hours, this indicates desired temperatures are not being reached. To
achieve higher temperatures the mat may need to be placed on a more insulated
surface. Covering the seedling tray with a humidity dome will also aid heat
retention.
The Hydrofarm Heat Mat Thermostat™ is a digital temperature control device that allows gardeners to select and maintain optimum
rooting temperatures for faster seedling or cutting growth. It is compatible with all Hydrofarm Heat Mats and many other heat mats.
2249 S. McDowell Ext., Petaluma, CA
• Donotimmersecontrollerorprobeintowater.
• Thermostathasanautomaticsafetyshut-oifprobe’stemperaturereaches
108˚F.
• Donotexceedatotalof1000wattsofheatingdevicespluggedinto
thermostat.
• Aprobeholderwithsuctioncupisprovidedincasethereisanapplication
where air temperature is being controlled by a heating device.
GUARANTEE: The Heat Mat Thermostat™ is guaranteed to the original owner for one
full year against defects in workmanship and materials. Save your receipt. A copy is
required for all warranty work. Return to the place of purchase.