6 botellas de 14ml Para medidores de Nitrato LAQUAtwin B-741, B-742, B-743, NO3-11, NO3-11C y NO3-11S …
The CI-340 Handheld Photosynthesis System features a new design concept and compact solid-state structure. The entire system: the display, key…
Experiment with static electricity that causes lightning, make clouds in your palm, build a desktop water cycle model, watch air…
The DHT-1 features a sturdy pistol-grip handle, with an extra-rugged probe shaft made from aircraft aluminum. The LED screen provides…
New ultra-thin design Displays indoor and outdoor temperature and humidity Displays 12 and 24 forecasts Remote wireless temperature and humidity sensor 24 hour barometric…
Automate devices based on weather conditions. Install an Alarm Output Module in your WatchDog Weather Station and program it to trigger…
Professional grade solutions for: Plant growth monitoring Early pest/disease forecasting Efficient irrigation management This powerful…
Use to measure soil, air or water temperature. Range from -30 degrees to 100 degrees C. Accuracy is +/-1degree F.…
Measure surface temperature of leaves and other applications with this micro-sensor. Range: -22° to 212°F. Accuracy ± 1°F.…
The key is knowing both when and how much to water! Maintaining a healthy water balance is essential for producing…
Three cosine corrected Quantum sensors (spaced 4.6in/11.7cm) average their readings to minimize the effects of small shadows such as below…
This 9mm eyepiece offers a wide field of view and superior optical performance at a bargain price Great eye relief so…
Description Biological microscope with 360° revolving monocular head, focal lenght 160mm, supplied with 10x WF eyepiece and four achromatic objectives: 4x,…
La FreeHand de Carson puede utilizarse como una lupa de mano o pas uso a manols libres (vea el video).…
Series 4000 Eyepieces: Serious telescope users own generally 4 to 6 eyepieces, for higher and lower magnifications, and for wide-angle…
Series 4000 Eyepieces: Serious telescope users own generally 4 to 6 eyepieces, for higher and lower magnifications, and for wide-angle…
Series 4000 Eyepieces: Serious telescope users own generally 4 to 6 eyepieces, for higher and lower magnifications, and for wide-angle…
The Sirius EQ-G supports up to a 30-lb. load for all your visual or astrophotographic applications Select from among 42,900 celestial…