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7. Problems and interference with operation
Problem & cause
Remedy
Distance between the transmitter and
receiver too long
Reduce distance between the transmitter and receiver to
receive signal
High shielding materials between the
units (thick walls, steel, concrete,
isolating aluminum foil, etc.)
Find a different location for sensor and/or receiver. See also
item ‘transmission range’ below
Interference from other sources (e.g.
wireless radio, headset, speaker, etc.
operating on the same frequency)
Find a different location for the sensor and/or base station.
Neighbors using electrical devices operation on the same signal
frequency can also cause interference with reception
No reception after adding extension
cables
Find a new location for the sensor and/or base station.
Poor contrast LCD or no reception or
low batteries in sensor or receiver
Change batteries ( check low battery indicator on the LCD)
Temperature, humidity, or air pressure
is incorrect.
Check/replace batteries. If multiple remote sensors are in use,
check location with corresponding “boxed numbers”. Or move
away from sources of heat/cold. Adjust relative air pressure to a
value from a reliable source (TV radio, etc.).
8. Specifications
Outdoor data
Transmission distance in open field
: 100 meters max.
Frequency
: 433MHz
Temperature range
: -40
o
C to +65
o
C (show OFL if outside range)
Resolution
: 0.1
o
C
Measuring range rel. humidity
: 20%
̚
95%
Humidity accuracy
: +/-5% under 0-45
o
C
Measuring interval thermo-hygro sensor
: 48 sec
Water proof level
: IPX3
Indoor data
Pressure / temperature
: 48 sec
Indoor temperature range
: 0
o
C to +60
o
C
Resolution
: 0.1
o
C
Measuring range rel. humidity
: 1% ~ 99%
Resolution
: 1%
Measuring range air pressure
: 700hPa – 1100hPa
Resolution/Accuracy
: 0.1hPa/1.5hPa
Alarm duration
: 120 sec
Power consumption
Base station
: 3 x AA 1.5V LR6 Alkaline batteries
Remote sensor
: 2 x AAA 1.5V LR03 Alkaline batteries
Battery life
: Minimum 12 months for base station
: Minimum 24months for remote sensor
