Coil building may be a fun hobby but it can also be dangerous. Rebuildables are only for vapers who know how to use a meter, or when a meter must be used, or how electronic devices work.
Be forewarned that faulty coils can blow electronic devices, so it is important to always test your freshly built coil on a reliable meter before firing it up on your mod. Coil Master has created the perfect tool to ensure that you and your vaping device are safe.
Made of fire-retardant ABS, the Coil Master 521 features high-grade stainless steel 510 threads with a spring-loaded brass contact. Precision ratings are extremely high, offering readings from 9.99Ω down to 0.01Ω.
Also included in the 521 kit is a removable voltage checker that accurately reads the output voltage of most mechanical mods and devices.
The Coil Master 521 tab is very easy to use. The three-way switch at the back lets you select between power off, meter reading, and firing options. You can work on your coil while the build deck is on the tab, eliminating the hassle of having to screw and unscrew the atomizer between testing.
The Coil Master 521 tab is powered by a single, high amperage 18650 battery (sold separately).
What's So Great About The Coil Master 521 Tab?
The Coil Master 521 tab is designed to make coil building more convenient for you and ensure that you are only building coils that are 100% safe for your mod.
The Coil Master 521 Tab is a square-shaped tool that is 84.5mm long, 69.5mm wide, and 49.5mm thick. It is made of flame retardant ABS plastic with an all-black finish. ABS is an ideal material for applications where impact resistance, strength, and stiffness are required.
The Coil Master 521 is big enough to provide a stable platform to work on, yet compact and lightweight to slide inside your tool box or pouch.
On top of the tab is a round build platform with red LED that lights up when the device is activated. There are two holes that connect to the removable voltage checker and the wire resistance checker that are included with the 521 Tab kit. In the middle of the build area is a spring-loaded 510 pin that can accommodate all types of atomizers.
On the tab itself are a dome-style firing button, a large OLED screen that displays resistance or voltage, and a LED indicator that glows blue when the burn mode is active.
On the side of the Coil Master 521 is a micro USB port for charging the battery that powers the device.
A two-way rocker switch at the back lets you select between fire mode and ohm check mode, with the default setting at power off.
Under the Coil Master 521 tab is a battery compartment that's accessible through a magnetic door. The 521 is powered by a single 3.7-volt lithium 18650 battery which you can easily swap out by pulling the ribbon.
The Coil Master 521 tab is primarily an ohm meter. The centerpiece features a versatile connector that can accommodate atomizers of all sizes – ranging from slim 15mm attys to massive 30mm attys.
To check the resistance of your coil, pick up your atomizer and screw the base onto the 510 connector on top. When you set the switch to the I position (ohm check), the LED ring will glow red to indicate activation and the OLED screen will automatically display the resistance of your build.
The voltage meter is a separate attachment that plugs into the two holes on the top of the 521 tab. This nice little gadget lets you check the voltage reading as well as the voltage drop of your mod.
The 521 voltage checker has two prongs and a recessed section that goes over the fire button. To use the voltage checker, push the device into the pair of connectors on top of the 521 tab and screw your mod or battery into the 510 threaded pin on top of the voltage checker. Set the switch to the I position and press the fire button of your mod or battery to check its voltage. You'll be able to monitor voltage drops as you keep firing.
Test Fire Workstation
When you set the switch to the II position (fire mode), the OLED screen will display a pipe symbol and the LED indicator will glow blue – which means the device is ready to fire. Press the dome-shaped button to test fire your build deck. This is a very useful feature that allows you to adjust your coils and wicks as you build them without having to use a mod.
Wire Resistance Checker
Also included in the Coil Master 521 kit are two alligator clip leads for checking wire resistance. You can use these to measure the resistance of atomizers that do not have a 510 pin. The test leads fit right into the same pair of connectors on top of the 521 tab that catches the voltage checker.
Coil Building Station
The Coil Master 521 tab provides you with a more convenient build station than a small, cramped atomizer stand or mod.
To start building your coil, install the base of your deck on top of the 521 tab. Insert the leads of your coil through the deck posts, tighten the screws, and trim any excess wire. Twist a sheet of organic cotton and thread it through the coil to set your wick.
If you want to adjust the spacing of your coil while test firing, we recommend that you use a pair of Coil Master ceramic tweezers for maximum heat resistance when working with high temperatures.
You can build dual coils and flood your deck with e-juice for some real vaping action!
You have two charging options when the Coil Master battery starts to drain. You can either take the 18650 cell out and charge it on an external device, or use the USB cable included in the 521 kit to charge the battery while it is inside the tab.
To charge your 18650 battery within the tab, plug one end of the USB cable into the micro USB port on the side of the Coil Master and the connect the other end to a power source such as a desktop computer, laptop, or USB hub. Charging progress and current battery level will be displayed on the OLED screen.
Coil Master 521 Tab Specifications:
3-in-1 table mod, ohm meter, voltage meter
Fire-retardant ABS housing
High-grade stainless steel 510 threads
Spring-loaded 510 brass contact
Voltage meter for mechanical and regulated mods
Resistance measuring range: 0.01Ω to 9.99Ω
Can fire resistances down to 0.2Ω
Voltage measuring range: 0.3V to 9.99V
Powered by one (1) high amperage 18650 battery (sold separately)
4.5V/750mAh micro USB charging
Reverse polarity protection
15-second safety cut-off
Dimensions: 84.5mm x 69.5mm x 49.5mm
1 x Coil Master 521 Tab 1 x Voltage Meter 1 x Micro USB Charging Cable 2 x Alligator Clip Test Leads
Vapor HQ E-Liquid products are designed strictly for adult recreational use. It is not intended for anyone who are below the legal smoking age in their jurisdiction.
Vapor HQ electronic cigarettes, cartomizers, e-liquids and other vaping supplies should be kept away from children and pets. Hardware parts can be choking hazards if swallowed. Some VaporHQ products contain nicotine, which is highly addictive and habit forming. If nicotine comes into contact with your eyes or skin, wash immediately with soap and water to avoid irritation. Nicotine, in very high doses, can be lethal if inhaled or ingested. Do not use Vapor HQ products if you are pregnant or breastfeeding, at risk for heart disease, hypertension, and diabetes, or taking medication for depression or asthma. Consult a doctor before use if you are allergic to nicotine, propylene glycol, or any combination of inhalants. If you experience side effects such as nausea, vomiting, dizziness, upset stomach, headache, or rapid heartbeat, stop using your the product and see a physician. Products are not designed to treat or cure any disease, physical ailment or condition. It is not a smoking cessation tool and should not be used by nonsmokers. Vapor HQ products have not been evaluated by the FDA or any other regulatory authority. Must be 18 years or older to purchase e-liquids.
Warning: Vapor HQ E-Liquid products may contain nicotine, a chemical known to the State of California to cause birth defects or other reproductive harm.
Proper Disposal - DO NOT pour e-liquid down a drain. To dispose of e-liquid, empty the fluid into absorbent kitty litter in a sealable plastic bag and throw it in the trash.This keeps the nicotine out of the groundwater and makes it difficult for second hand contact.
Electronic Cigarettes might include Li-ion battery cells which can explode or burst into flame if used improperly. Do not disassemble, crush, puncture, cut, short-circuit, incinerate, recharge (disposable cells only), or expose to water, fire, or higher temperatures. Improper use can lead to injury or damage. For mechanical mod users, please use 30 Amp batteries or higher. CHECK YOUR AMPS, and be safe! Any questions please contact us by email or phone. Batteries should be charged inside a fire-proof container, and be checked after charging and prior to use. By no means should you charge batteries unattended. Only use suitable chargers intended particularly for the battery, don't mix.
By buying these products, the purchaser assumes all dangers and liabilities related with lithium batteries. It's your duty and responsibility to know the dangers and the proper procedures for handling Li-ion based battery cells. Vapor HQ is not responsible or liable for any injury or death.