Petri New Single-Coil RDA Review

 　　The Petri series products produced by Dotmod are well-known among electronic users, impressing with their high-quality craftsmanship, vibrant colors, and excellent user experience, all at a reasonable price, making them a popular choice among high-end devices. With the changing market and the introduction of new devices, Petri has taken the brand to new heights by releasing both pre-made and RTA tanks. Now, in August 2017, they have launched another significant new product - the Petri Single-Coil RDA.

  　　The new single-coil structure RDA features a revolutionary spring-loaded clamp, a 24K gold-plated brass base, adjustable airflow, and Dotmod's signature anodized aluminum atomizer cap. It comes with a resin drip tip, a set of hollow electrode posts and screws, and is compatible with a bottom-filling system with a large space of 1.5mm x 3.9mm, accommodating high freedom coil building methods. The simple drip tip design and a base depth of 4.8mm provide a large e-liquid capacity, and using the included dotkey, you can easily install and remove the heating wire without any additional tools.

  　　The outer packaging still uses the classic black box typical of the Petri brand.   　　Upon opening, it includes the new RDA, a PEI drip tip, a numbered card, spare O-rings, a bottom-filling kit, pre-made fancy coils, and spare springs, all packaged in a small glass bottle with a cork, which is one of the main reasons for the high-quality impression of the Petri brand.   　　Among these accessories, there is also a "key" with a gold-plated hollow Dotmod logo, which is actually a unique screwdriver for this atomizer, subtly enhancing its high-end impression.   　　Its dimensions are 36mm*24mm, and it continues to use the anodized aluminum cap and gold-plated base design, inheriting excellent craftsmanship. In terms of aesthetics, Petri atomizers have always been among the best in the market, a point recognized by all players.   　　The difference in the design of this RDA is that the drip tip is replaced with a PEI drip tip fixed by threads, indicating that it cannot be swapped with other drip tip products like conventional atomizers. Another point is its airflow design, which differs in height from the dual-coil version released later; the dual-coil version has airflow holes located in the upper middle of the cap, while the new single-coil version has them in the lower half of the cap, with angled openings to direct airflow straight to the heating wire.   　　PS: The PEI drip tip has a good surface treatment, preventing players from inhaling any condensation, but condensation beads may stick to the inner wall of the drip tip, which is a slight visual regret.   　　The biggest charm of this new version lies in its single-coil electrode structure. When Dotmod officially released images on social media, players were skeptical about this single-coil design. There are two reasons: one is the ease of coil installation, and the other is whether the PEEK insulating component in the middle would burn out due to high temperatures.   　　First, looking at the disassembly diagram, it belongs to a clamp-style locking method. Although there are many components, there is no need to disassemble it for daily use, so there are no cleaning troubles.   　　Before explaining the electrode structure, it is important to note that the bottom-filling kit requires the replacement of the bottom electrode screw and the upper locking screw to connect with the middle oil channel.   　　At the lower electrode, there is a slightly larger spring between the electrode and the PEEK insulating kit; at the upper electrode, a smaller spring is used, allowing both parts to have a self-rising function.   　　From the above diagram, it can be clearly seen that the rising order is that the lower electrode rises first, followed by the upper one.   　　Although its single-coil design does not have slots for securing the wire and lacks actual pressure points, in practice, the ease of coil installation is far from being as difficult as imagined, and compatibility with fancy coils or regular single wires poses no issues. After tightening, the coils do not experience jumping resistance or displacement. As for the reserved length of the wire legs, they can be trimmed during installation to prevent obstruction when placing two coils.   　　The only thing to note is that the distance between the coil and the PEEK insulating part should not be too close, so under normal installation spacing, after high-intensity firing tests, the PEEK component shows no damage, ensuring quality and reliability.   　　In the cotton filling step, the 4.8mm deep oil channel and the space left by the single-coil structure allow for a large amount of cotton to be placed, making its endurance outstanding compared to ordinary dripping products.   　　#p#分页标题#e#For those familiar with the Petri dripping series, its essence lies in the slightly tight airflow setting, which provides an extremely delicate flavor performance in daily use. When using fancy coils, this delicate airflow further enhances the rich flavor characteristics, allowing the e-liquid's taste to show more layers; when paired with regular coils, its flavor is also more refined compared to other 24mm atomizers, making it an excellent choice for players pursuing flavor in daily use.   　　When pairing with fancy coils, it is recommended that players choose a conventional dual-core Clapton coil wound 5-6 times (the factory-configured pre-made coil is wound 7 times, making it more suitable for regulated devices); when choosing regular coils, to match the airflow, it is recommended to pair with a 0.6mm A1 coil wound 6-7 times, while a 0.5mm wire diameter will also yield surprising results when airflow is reduced. As for the choice of coil diameter, 2.5mm leans towards flavor perception, while 3.0mm is more balanced, so players should choose according to their usage habits.   　　For an atomizer, creating novelty in such a small space is a challenging task, so when design becomes a highlight, the user experience naturally leaves a good reputation; conversely, if it becomes a drawback, it will turn into a product that is only a gimmick and goes unnoticed, which is a harsh and realistic situation. However, this brand new single-coil Petri dripping clearly belongs to the former category, as the brand's impeccable craftsmanship and eye-catching appearance have been preserved, while the spring-loaded clamp locking mechanism and single electrode pillar perfectly combine innovative concepts with visual and practical experiences. Therefore, considering the above aspects of electronic cigarettes, this new concept dripping from Petri is worth every enthusiast trying.