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TL SL SILVERAlarm Clock, Sweep MovementTL SL SILVER
  • Quartz alarm clock
  • Silent movement
  • Snooze and light
  • Matte silver effect case 

9.5 X 5.6 X 11 CM1x AA
TL TX17Transmitter
TL TX29-ITTransmitter
TL TX29DTH-ITTransmitter
TL TX38-ITTransmitter
TL TX45TH-ITTransmitter
TL WL1020TL WL1020 
Air quality monitor

Control is better than gut feeling

The new air quality monitor helps you to analyse and assess the air in the room independently of your personal perception. Based on the values determined, it provides you with recommendations for action so that you can react quickly and appropriately to changes in the quality of indoor air.
The built-in air quality sensor monitors the room climate around the clock, analyses the concentration of pollutants and reminds you to ventilate at the right moment.

...for a guaranteed healthy room climate and the preservation of health.

Display of air quality by 5 star symbols in 11 levels
The more star symbols are displayed filled in, the better the measured air quality
White background lighting with coloured ventilation recommendation:
Yellow lighting = ventilation recommended, red lighting = ventilation strongly recommended
Measurement via a powerful mixed gas (VOC) sensor for monitoring indoor air quality

additional functions:
Indoor temperature display in °C or °F
Indoor humidity display
Quartz clock
12/24 h time display
Alarm with snooze function
Low battery indicator
Table standing

Energy saving: the air quality is only displayed while using the USB adapter (incl.) to conserve the power of the batteries! Time, temperature and humidity
remain visible even in battery mode

TVOC and CO2 sensor information:
TVOC and CO2 (CARBON dioxide) adopt metal oxide sensors with long-term stability and low drift.
TVOC is the abbreviation of total volatile organic compounds, containing thousands of compounds.
CO2, the sensor does not directly detect CO2 in the environment, but the approximate value derived from other relevant parameters of the sensor.

Composition of air
Under indoor conditions, indoor air consists of approx. 78% nitrogen, approx. 21% oxygen, approx. 1% noble gases and approx. 0.03% carbon dioxide. The concentration of inert gases and carbon dioxide is crucial for assessing the quality of indoor air and its effect on our well-being and health.


Temperature measurement range: -9.9 - 50°C lower than -9.9°C indicates LL, higher than 50°C indicates HH
temperature resolution: 0.1°C
Humidity measuring range: 10-95%.
Humidity resolution: 1%
TVOC airborne particle detection range: 0 - 9,999 mg/m3
CO2 equivalent (Eq.) detection range: 400 - 9.999PPM Eq.

8,2 x 8,2 x 2,5 cm2 x AAA
TL WL1030TL WL1030
Air quality monitor

Air quality sensor for monitorung of indoor air quality
Non-dispersive infrared (NDIR) gas sensor with CO2 measuring range up to 5000 ppm
Ventilation recommendation on basis of CO2 concentration in the air
Indoor temperature display in °C or °F
Indoor humidity display
MIN/MAX value memory of last 24 hours with auto-scrolling feature
Adjustable CO2 value alert with obtional alarm sound
Adjustable alert for high or low temperature and humidity
Calibration feature for CO2, temperature and humidity
Low battery indicator
Built-in ROM memory to save settings
Backlight with adjustable brightness levels
Table standing

CO2 levels and guidelines
Below are some CO2 reference levels in general:


Background (normal) outdoor air level.


Typical level for occupied spaces with good air exchange.


Start ventilation of the room.


Level associated with complaints of drowsiness and poor air.
Ventilation recommended!


Level associated with headaches, sleepiness, and stagnant, stale, stuffy air. Poor concentration, loss of attention, increased heart rate and slight nausea may also be present.
Ventilation strongly recommended!


Exposure may lead to serious oxygen deprivation resulting in permanent brain damage, coma, and death.
Requires immediate ventilation!



Power supply: Power supply (included)
Temperature range: 0°C - 50°C / 32°F to 122°F
Temperature resolution: 0.1°C
Humidity range: 20% - 95% RH
Humidity resolution: 1%
Operating temperature: 0°C to 50°C / 32°F to 122°F <95%, non-condensing

Measuring range: 400 - 5000PPM
Resolution: 1PPM
Accuracy: +/- 5% +50PPM
Warm-up time: 1 minute

Display out of range
CO2: 400 (≤ 400PPM)
          HI (≥ 5000PPM)
Temperature: LO (≤ 0°C / 32°F).
                      HI (≥ 50°C / 122°F).
Humidity: 20% (≤ 20%)
                95% (≥ 95%)

Default settings
CO2 Alarm: Low -400, High 2000
RH% Alarm: Low 35%, High 70%.
CO2 Sound Alarm: Off
Temperature: °C
Display brightness level: High

9,4 x 14,5 x 5 cm
TL WS6440Weather Station, Radio Controlled, Alarm Clock, Wall Clock, Table Clock, LCDDCF-77 radio controlled clock with manual setting option. 12/24 h time display. Time zone setting (-1/+1). Date display. Indoor and outdoor temperature display (in C/F). Indoor and outdoor humidity display. MIN/MAX recording. Air pressure display and air pressure tendency. Forecasts of weather situations. Coloured LED display. 2 alarms with snooze function (programming avaible). Low battery indicator. Up to 3 sensors receivable. Hi - Lo Dimmer. Wall mounting or table standing. Including transmitter TX96-TH14,8cm x 5,4cm x 13,7cm3 x AAA (not included)
TL WS6449
TL WS6750
TL WS6760