It can be used in all bio-inner filters, outer filters, drop purification filtration systems and garden pond filters. Alumina Ceramic Ring,Alumina Textile Ceramic Ring,Alumina Ceramic Raschig Ring,Alumina Ceramic Seal Rings SHENZHEN HARD PRECISION CERAMIC CO.,LTD , https://www.hardcm.com
It is also particularly suitable for small biofilters as a highly effective and durable filter material. Biofilter cotton is used as a pre-filter material to avoid contamination caused by floating objects.
Since the ceramic ring is covered with micropores, it is suitable for the proliferation of nitrifying bacteria, which can play a role in purifying water quality.
Features:
It can be used efficiently in small filters.
The effect is fast - whether it is fresh water or seawater aquarium, the best water quality.
Keep fish and plants healthy.
Reduce the frequency of water changes.
Long service life.
It does not decompose itself and is resistant to seawater corrosion.
Can be used in most filters.
The unique pore structure makes the nitrifying bacteria live and work in peace.
Hail Reminder: The ceramic ring is divided into a large ring and a small magnetic ring. It is necessary to choose the size according to different containers, and the price is cheap.
How to choose the right wireless remote controller and common misunderstandings
The wireless remote controller is not very familiar to many newcomers. It is because they do not understand that various problems often arise. For example, if you have bought a wireless remote controller, you cannot match it? How far is your remote control distance? Do you have a garage door or electric door wireless remote control? And so on. To answer these questions, Remote tells you how to choose the right wireless remote control and several common mistakes. Select several common misunderstandings of the wireless remote control: 1. Appearance: One of the common misconceptions, many users mistakenly believe that choosing an appearance is the same as that of the original wireless remote control when matching the new wireless remote control to the original wireless remote control. Wireless remote controllers can be used. In fact, if they are matched, most remote controllers cannot replace the original remote controllers. When selecting a wireless remote control, the same brand or four parameters are selected (there are detailed wireless remote control selection methods), and the appearance of the remote control is not important. 2. Category: The second common misunderstanding, many users often ask: Do you have a garage door wireless remote control? Rolling door wireless remote control? Telescopic door wireless remote control? Electric door remote control? Car wireless remote control? Alarm wireless remote control? In fact, no matter where the wireless remote controller is used, if the four parameters of the wireless remote controller correspond to each other and the matching method is correct, these wireless remote controllers can be shared, and there is no need to say what kind of wireless remote controller is used. Simply put, the same wireless remote control, parameter correspondence and matching method are correct. The wireless remote controller can be used in any field: car, garage door, roller shutter door, curtain door, roll gate, road gate, alarm, etc. . 3. Distance: The third most common mistake, many users often ask: How far is your remote control distance? In fact, the distance of the wireless remote controller and the sensitivity of the receiving module are inevitably related, and it cannot be said how far the wireless remote controller is. In general, the same receiving module, the greater the transmission power of the wireless remote controller, the longer the distance, the higher the sensitivity and the anti-interference ability of the same wireless remote controller and the receiving module, and the longer the distance. The 50-meter wireless remote controller or the 100-meter wireless remote controller, which is often said, usually refers to the open distance of the wireless remote controller, which means the ideal environment, no interference environment, and the prerequisite is that it has a matching receiver or has a high sensitivity for some of them. The receiver of the wireless receiver module. For the above common misunderstandings, the correct wireless remote control selection method is as follows: A, select the wireless remote control operating frequency is the same (common frequencies such as 433MHz, 315MHz) B, select the wireless remote control chip model same learning code HS1527, EV1527, HT6P20B Such as fixed code HS2260, HS2262, PT2264 and other rolling code HCS301, HCS300, HCS200, etc. (If it is HCS type rolling code also need the same brand) Copy: with copy remote control, can use the function C, wireless remote control data ( Coding) Same as D, the wireless remote controller has the same pulse width and time. If it is a fixed code remote control, it also needs to be consistent with the coding. If it is a learning code, the wireless remote control must be coded with the previous receiver. If the original wireless remote controller is a wireless remote controller with fixed code or learning code, and you do not have professional knowledge, it is recommended to select the copy wireless remote controller. For copying the wireless remote controller, refer to the copy wireless remote control operating instructions. Seeing here, many users are puzzled, I do not know my wireless remote control operating frequency and encoding chip! How to do? Please open your wireless remote control shell to see the internal circuit board of the remote control: A. Frequency selection: Look at the number on the resonator of the wireless remote control board (some people are also called crystal) (315MHZ?433MHZ? Other 390, 418, 430 frequency?), select the same frequency as the original wireless remote control. B. Chip selection: IC on the remote control board (2260? 2262?2264?1527?2240?) The general IC prefix is ​​different, there may be differences in the oscillation resistance, but the IC's suffix must be the same or compatible, such as 2260/2262 / 2264 Several kinds of chips are compatible, this is the fixed code also called the welding code (need to weld the user's own custom code). If it is 1527 or 2240, this is also a fixed code (the code chip does not need to be coded when it is shipped from the factory). Therefore, this type of remote control needs to be paired with the receiving main board before it can be used. Therefore, it is often called a learning code. C. wireless remote control data This is not intuitive, you need to check the machine or the instrument to see. D. Pulse width time, also known as the oscillation resistance, is a resistor connected to the remote IC's oscillation pin. The commonly used oscillation resistance of the fixed code chip 2262/2264 is: 1.2M (125); 1.5M (155); 2.2M (225); 3.3M (335); 4.7M (475). The oscillation resistance of learning code chip 1527 is often 180K (184) 270K (274); 330K (334) and so on. A mismatch in the oscillation resistance may result in proximity, or if the wireless remote receiver is not operating. After reading the above introduction, would you like to add a few remote controls to your home wireless remote control? Yes, then choosing the copy/copy type remote controller can be matched. It is very simple, just like the principle of having a key on the outside. Before choosing to use the Duplicate Remote Control, confirm the two important parameters of your original old remote control: chip and frequency. All learning codes and fixed codes can be copied. Part of the rolling codes and brands can also be copied. In addition to the above-mentioned copy/copy type remote controller that can be matched, there is a method of giving someone a remote control. Using the YET-9001 copy machine, the original wireless remote controller is simply tested on a YET-9001 copy machine. Immediately display the four parameters, let you know at a glance, a word cool. Can copy the original remote control, but also according to your motor brand regeneration a new wireless remote control to solve your wireless remote control lost. To learn more about wireless remote control, YET-9001 copy machine features and information, visit /pwxykq.shtml