Digital Thermometer Humidity Meter for Greenhouse & Hydroponics HY303

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  • Humidity and thermometer HY-303 for gardening, greenhouse and hydroponics
  • The indoor humidity meter HY303 comes with a built in stand
  • The indoor humidity meter HY303 has a hole for hooking to a wall. It has a switch to select temperature display in Celsius or Fahrenheit.
  • The humidity meter HY303 comes with one long lasting AAA battery,


New Digital Temperature and Humidity Meter HY303

Great Tool to adjust your Air Conditioner or Dehumidifier

Ships quickly from St. Paul, MN, USA!

This meter will allow you to check the humidity level and temperature quickly. The sensor is located at the back of the meter for good air circulation and fast readings. Place the meter in a room and after 5 minutes it will give you a stable reading of the current conditions. You then can use the readings to adjust the humidifier and air conditioner in each room.

This meter is frequently used by gardeners and orchid growers to monitor conditions in a greenhouse or hydroponics growing area.

It will also display the comfort level and the trend (rising, steady, falling) for temperature and humidity.

Temperature Range: - 4 to 120 °F /  -20 to 50 °C
Easy Switch between °F and °C
Humidity Range: 10% to 95% relative humidity
Resolution 1%
Accuracy: +/-5%
Memory: min/max for temperature and humidity
Dimensions: 4" x 4 1/4" x 3/4"
Large display for easy reading
Weight: approx 130g / 4.5 oz
Battery: 1x 1.5 Volt AAA (included!)

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Warranty Information

1 year warranty
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