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A: The display will show “- - -” when the wireless connection with the remote
thermo-hygrometer is lost for 15 minutes
Check or replace the batteries in remote sensor. Then press and hold DOWN button on
the main unit to enforce a search for the remote signals.
If this does not work, check the wireless transmission path from the remote
thermo-hygrometer to the main unit and change their locations if necessary.
The following may be the cause of reception problems:
• The remote thermo-hygrometer and a main unit are too far from each other.
• The signal shielding materials, such as metal surfaces, concrete walls or dense
vegetation, are in the path of transmission.
• There is interference from the wireless devices (such as cordless phones, radio
headsets and baby listening devices) and electronic appliances.
Precautions
This product is engineered to give you years of satisfactory service if handled carefully.
Here are a few precautions:
• Do not immerse the units in water.
• Do not clean the units with abrasive or corrosive materials. They may scratch
the plastic parts and corrode the electronic circuits.
• Do not subject the product to excessive force, shock, dust, temperature, or
humidity, which may result in malfunctions, shorter lifespan, damaged batteries,
and damaged parts.
• Do not tamper with the product’s internal components. Doing so will invalidate
the warranty and may cause damage. The product contains no user-serviceable
parts.
• Use only fresh batteries. Do not mix new and old batteries.
• Read the user's manual thoroughly before operating the product.
Specifications
Radio Frequency: 433 MHz
RF Reception range: 328 feet (100 m)
Temperature
Range: -40°F to 176°F (-40°C to 80°C)
Resolution: 0.2°F (0.1°C)
Accuracy: 2°F (1°C)
Transmitting Interval: around 47 seconds