Does this use a button top or flat top 18650?

we suggest flat top,but in face,both of the button top and flat top 18650 can be used

What is the correct battery for this device? What should it be rated at?

18650 - But, you're not going to be doing much other than pulsing....If you want to be on the safe side, installed a Molicel P26A - Tough battery, rated at 35A, and long lasting charge. Check out 18650batterystore.com - Only a few bucks for the battery.

How in the world do you open the battery door? Do I stick something in that long thin slot to press something?

There is a smaller slot right at the edge of the battery cover. you can open it with your fingernail or a small screwdriver

What is the USB port used for?

For charging. Still requires one “18650” battery.

Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

Help Track order

Account Cart

Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

Help Track order

Account Cart

521 TAB Mini Coil Burning Measure Building Platform V3 Ohm Resistance Tester

521 TAB Mini Coil Burning Measure Building Platform V3 Ohm Resistance Tester

Product ID: 66788936

Details

Brand
Tuopuke
Color
Black
Item Weight
9.07 g
Power Source
Battery With
Style
Platform

⚡12V min operating voltage

🔋Battery powered + USB charging

🌡️Up to 100°C high-temp protection

KSh7598

Duties & taxes included

In stock

Sold byAmazon KenyaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Kenya.

Secure transaction

Description

🔥 Build smarter, safer, and trendier coils every time!

PRO GRADE TESTING - Burn cycle feature to identify hot spots and ensure even coil heating.
USER FIRST DESIGN - Easy-to-use interface with voltage testing and high temperature safeguards.
COMPACT POWERHOUSE - Palm-sized design with built-in battery level indicator and USB charging port.
PRECISION COIL SAFETY - Avoid dangerous builds with accurate ohm readings and short circuit protection.
VERSATILE COMPATIBILITY - Supports various coil materials and mod types with reverse battery protection.

The 521 TAB Mini Coil Burning Measure Building Platform V3 is a compact, battery-powered ohm resistance tester designed for coil DIY enthusiasts. Featuring a 12V minimum operating voltage, USB charging, and high temperature protection up to 100°C, it ensures safe, precise coil building with advanced features like burn cycles, short circuit protection, and battery level monitoring. Ideal for professionals and hobbyists seeking reliable, on-the-go coil testing and optimization.

Specifications

ASIN	B07DWNV135
Best Sellers Rank	#282,521 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #406 in Multi Testers
Brand Name	Tuopuke
Color	Black
Compatible Devices	Vaping Devices
Customer Reviews	4.4 4.4 out of 5 stars (197)
Item Weight	9.07 g
Manufacturer	CoiledVapr
Measurement Type	Ohmmeter
Minimum Operating Voltage	12 volts
Model	CV03
Number of Items	1
Number of Packs	1
Part Number	CV03
Power Source	Battery Powered With Usb Charging
Style Name	Platform
UPC	782123450848
Unit Count	1 Count
Upper Temperature Rating	100 °C

Common Questions

Are the products genuine and authentic?+

Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

How long does delivery take and is it reliable?+

Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

What is Desertcart? Is it safe to order from?+

Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Meera L.

Smooth transaction and product arrived in perfect condition.

3 weeks ago

Reema J.

Perfect platform for hard-to-find items. Delivery was prompt.

1 month ago

View all Trustpilot reviews

Shop Global, Save with Desertcart

Value for Money

Competitive prices on a vast range of products

Shop Globally

Serving millions of shoppers across more than 100 countries

Enhanced Protection

Trusted payment options loved by worldwide shoppers

Customer Assurance

Trusted payment options loved by worldwide shoppers.

Desertcart App

Shop on the go, anytime, anywhere.

KSh7598

Duties & taxes included

In stock

Sold byAmazon KenyaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Kenya.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Fatima A.

Best international shipping I've ever tried. Worth every penny!

3 days ago

Farhan Q.

The delivery time was excellent, and the packaging was secure.

2 months ago

View all Trustpilot reviews