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Introduction
The WS-55 is a thermometer / hygrometer for use at home. The WS-55 is not waterproof.
Intended use
The WS-55 is only intended for displaying the temperature and humidity in private spaces. The WS-55 is not suitable for professional purposes.
About this user's manual
This symbol indicates a warning. To ensure safe use, always follow the instructions provided in this documentation.
This symbol is followed by a user tip.
Always consult the Alecto website for the most recent version of this user's manual.
User tips
Keep in mind that an accurate temperature and humidity can only be displayed correctly after the WS-55 has been in the concerned space for several hours.
To avoid an incorrect display, don't place the WS-55 in direct sunlight or near lights or other heat sources.
Power supply
The WS-55 is powered by a CR-2025 button cell battery. The battery installed by the factory is activated by pulling away the isolation strip.
A nearly exhausted battery is indicated by the appearance of the "XX" symbol. Replace the battery by sliding out the battery holder and placing a new battery into the holder.
Please note that the battery only fits in one way, follow the + and - markings inside the holder.
Environment
This product may not be discarded as normal household waste at the end of its life span, you must bring it to a collection point for the recycling of electric and electronic devices.
Don't throw away exhausted batteries, but bring them to your local depot for Small Chemical Waste (SCW).
Operation
In standby mode, the display shows the temperature and humidity of the space where the WS-55 is located.
Press the °C / °F button at the back of the unit to switch the temperature display between degrees Celsius and degrees Fahrenheit.
Briefly press the MAX/MIN button at the back of the unit to display the measured maximum values. Press again to display the measured minimum values. Press the button a 3rd time to display the actual values.
Press and hold the MIN/MAX button for 3 seconds to reset the minimum and maximum values.
Comfort indication
The WS-55 shows the comfort level as follows:
too dry (humidity <40%)
optimal (humidity 40%~70% / temperature 20°C~25°C)
too humid (humidity >70%)
There's no comfort indication at humidity 40%~70% and temperature < 20°C or >25°C.
Frost alert
The frost alert icon "XX" appears when the temperature in the space is between 4°C and -1.0°C.
Technical specifications
Measurement range: -20°C tot +60°C (-4°F tot +140°F)
Accuracy:
±1°C (between 0°C and +40°C)
±2°C (between +40°C and +50°C)
Humidity: 20 to 95% relative
Accuracy:
±5% (between 40% and 80%)
±8% (<40% and >80%)
LL.L indication: measurement values are too low
HH.H indication: measurement values are too high
WWW.ALECTO.NL
SERVICE@ALECTO.NL
Documents / Resources
References
Download manual
Here you can download full pdf version of manual, it may contain additional safety instructions, warranty information, FCC rules, etc.
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