Suitable for small space cooling, semiconductor refrigeration, research solutions developed cooling equipment planning | Air cooling device, not used to cool the water, use water to dissipate heat, and eventually the water is hot, not cold | This kit is a finished product that does not need to be assembled | Stable work and low noise, no refrigerant required | Suitable for 20L space cooling, air temperature can be cooled to 5-8 degrees than normal

This instrument is simple and easy to operate, 4 ranges to be switchable. This pocket design makes it convenient and portable, easy to use and to get a Accuracy reading. | Operating Environment: 14 to 122 Fahrenheit or (-10 to 50 Centigrade), 10% to 90%RH; Measure Range:: 0.1~200,000Lux, 0.01~20,000Fc. | High Accuracy and Rapid Response: Accuracy: ±4%, Resolution: 0.1Lux / 0.01Fc, Measurement speed: 2 times / second. Unit: Lux and Fc. | Auto power off without operation after 15 minutes, energy saving, powered by one 9V battery(included). | Widely Applications:Digital Luxmeter, Digital Illuminance/Light Meter Handheld Actionometer Foot Candle Meter is widely use in school, office, family, industry, warehouse, laboratory etc.

EQUIPPED WITH BACKLIGHT: Convenient for reading. The display can be clearly seen even at night. | GOOD DURABILITY: Adopts high quality ABS material, durable and sturdy, anti ‑ shock, can be used for a long time. | HIGH PRECISION: Equipped with pointer dial, high accuracy, can directly display the measurement results。 | WIDE TEST RANGE: 60/300W power test, the maximum current sensitivity is 200uA±8%. | EASY TO USE: The control layout is convenient and the operation is simple. The electric meter is installed vertically.

EFFECTIVE: Installing one or several simulation monitors can be very effective in quenching and deterring thieves or criminals so that they don't dare to approach. | WIDE APPLICATIONS: Applicable to supermarkets, hotels, parking lots, libraries, offices, warehouses, bazaars, parks, residential areas, or some conspicuous locations. | Because our simulation monitors are and workmanship, the working mode is exactly the same as the real monitor. It is difficult to tell that this is a simulation product. | EASY TO INSTALL: bracket , easy and quick to install with mount bracket and screws. | BLINKING LED AND WIRING: Blinking LED and wiring make it appear to work as a real security camera both in day and night.

QUALITY ASSURANCE: Each wheel has to through 3 inspection processes from material to wheel, which can ensure a 99.9% pass rate | SPECIFIC FEATURES: The outside of the wheel is an artificial wheel shape, the color is yellow and black, which bring more three?dimensional appearance | GOOD PERFORMANCE: Rubber?coated wheel, which has the characteristics of smooth running and better gripping ability | WELL DESIGNED: Four?wheel drive smart car can realize left and right translation, large?angle drift, tilt 45¡ã direction movement, track movement and other movement modes | WILD RANGE OF APPLICATION: This robot Mecanum wheel is compatible with building blocks and for TT motors | | | | |