Gift ideas
To demonstrate the removal of heat during evaporation.
If you place a cup of water filled to the brim in front of a duck that is movably suspended in a frame and moisten its head, the duck will tilt its head into the glass.
As long as it can dip its beak in and moisten it, it will “drink”.
Temperature, air pressure and humidity | |
Diameter | 70/70 mm |
Material | Solid oak |
Assembling | Wall mounting |
Dimensions | (L) 92 x (B) 38 x (H) 170 mm |
Weight | 182 g |
With hanging loop, d=100mm
Delivery contents | Penetration probe thermometer, battery, instruction manual |
Measuring range temperature | -40...+200°C (-40...+392°F) |
Material | Plastic |
Power consumption | Batteries |
Batteries included | yes |
Batteries | 1 x LR44 1.5 V |
Dimensions | (L) 20 x (B) 16 x (H) 205 mm |
Weight | 29 g |
- Outside temperature and humidity via transmitter
- Room climate with indoor temperature and humidity
- Weather forecast with symbols, air pressure history
- Programmable alarm conditions, storm warning
- Radio clock with alarm and date, backlit display
Measuring time: 0.5 sec., display of the current temperature, maximum and minimum temperature during the measurement, hold and lock function, measuring range: -33...+220 °C, switchable °C/°F, accuracy ± 1.5 °C from 0 ... 50°C, otherwise ± 2.0°C or 2%, including battery CR 2032 button cell 68 x 37 x 18 mm, 75 g
Measuring range -50…+500°C (-58 °F…+932 °F)
Material: Plastic
Power consumption: Batteries
Batteries included
Batteries: 2 x AAA 1.5 V
Dimensions: (L) 39 x (B) 110 x (H) 144 mm
Weight: 144 g
High quality red light diode laser pointer.
Powered by 2xAAA batteries.
dimensions: 138 x 18mm
weight: 24g
Suitable to replace a standard E10 screw-base flashlight bulb. Introduce students to Light Emitting Diode (LED) technology and its uses in addition to incandescent bulbs. Voltage 2.5...6V, max power 0.12W. Dimensions: Ø11 x 28mm
The optical system consists of three lenses in a metal housing.
In a plastic box.
Plastic, 10, 25, 50, 100, 250, 500 and 1000ml
Wooden leaf and plant press for making herbarium.
Set includes 2 wooden panels and 6 cardboard plates. Dimensions 17 x 17 cm.
- For pool and pond
- Water temperature with highest and lowest values
- Display of indoor temperature and humidity
- Adjustable temperature alert
- Pool transmitter with 180 mm measuring depth and solar cells
- Radio-controlled clock with alarm and date
- Expandable by up to 7 temperature/humidity transmitters (optional)
To demonstrate the removal of heat during evaporation.
If you place a cup of water filled to the brim in front of a duck that is movably suspended in a frame and moisten its head, the duck will tilt its head into the glass.
As long as it can dip its beak in and moisten it, it will “drink”.
Temperature, air pressure and humidity | |
Diameter | 70/70 mm |
Material | Solid oak |
Assembling | Wall mounting |
Dimensions | (L) 92 x (B) 38 x (H) 170 mm |
Weight | 182 g |
Delivery contents | Penetration probe thermometer, battery, instruction manual |
Measuring range temperature | -40...+200°C (-40...+392°F) |
Material | Plastic |
Power consumption | Batteries |
Batteries included | yes |
Batteries | 1 x LR44 1.5 V |
Dimensions | (L) 20 x (B) 16 x (H) 205 mm |
Weight | 29 g |
- Outside temperature and humidity via transmitter
- Room climate with indoor temperature and humidity
- Weather forecast with symbols, air pressure history
- Programmable alarm conditions, storm warning
- Radio clock with alarm and date, backlit display
Measuring time: 0.5 sec., display of the current temperature, maximum and minimum temperature during the measurement, hold and lock function, measuring range: -33...+220 °C, switchable °C/°F, accuracy ± 1.5 °C from 0 ... 50°C, otherwise ± 2.0°C or 2%, including battery CR 2032 button cell 68 x 37 x 18 mm, 75 g
Measuring range -50…+500°C (-58 °F…+932 °F)
Material: Plastic
Power consumption: Batteries
Batteries included
Batteries: 2 x AAA 1.5 V
Dimensions: (L) 39 x (B) 110 x (H) 144 mm
Weight: 144 g
High quality red light diode laser pointer.
Powered by 2xAAA batteries.
dimensions: 138 x 18mm
weight: 24g
Suitable to replace a standard E10 screw-base flashlight bulb. Introduce students to Light Emitting Diode (LED) technology and its uses in addition to incandescent bulbs. Voltage 2.5...6V, max power 0.12W. Dimensions: Ø11 x 28mm
The optical system consists of three lenses in a metal housing.
In a plastic box.
Plastic, 10, 25, 50, 100, 250, 500 and 1000ml
Wooden leaf and plant press for making herbarium.
Set includes 2 wooden panels and 6 cardboard plates. Dimensions 17 x 17 cm.
- For pool and pond
- Water temperature with highest and lowest values
- Display of indoor temperature and humidity
- Adjustable temperature alert
- Pool transmitter with 180 mm measuring depth and solar cells
- Radio-controlled clock with alarm and date
- Expandable by up to 7 temperature/humidity transmitters (optional)