What's the accuracy of this insulation resistance tester?

Base on their manual, it says 1m～200m ohm: +/- 3.0%+5, 200m～10g ohm: +/- 5.0%+5, 10g～200g ohm:+/- 10.0%+5

For the BT6688B insulation resistance tester, what is the test current for resistance measurements at rated voltages?

Do you mean what is the maximum current it can push if the resistance is very low? If not, the answer to this question will vary depending on which voltage setting you use and the resistance of the system you are testing. If for example, you test using the 1000v setting on a cable that has 2G-OHM resistance, the current is 1000 / 2,000,000,000 = .5 uA.

Can it measure polarization index measurement (pi) and dielectric absorption ratio measurement (dar)?

Yes, Both require a megaohmmeter, You just have to follow the correct sequence /procedure

Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

Help Track order

Account Cart

Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

Help Track order

Account Cart

BTMETER BT-6688B Megohmmeter 200 Gig Ohm Digital Insulation Resistance Tester, 500V/1kV/2.5kV/5kV Test Voltage, Auto Ranging, Backlight Display

BTMETER BT-6688B Megohmmeter 200 Gig Ohm Digital Insulation Resistance Tester, 500V/1kV/2.5kV/5kV Test Voltage, Auto Ranging, Backlight Display

Product ID: 66364272

Details

Brand
BTMETER
Color
BT-6688B
Item Weight
900 g
Power Source
Battery
Style
BT-6688B

⚡Up to 5kV test voltage

📊0.1MΩ to 200GΩ range

🔋Battery powered, portable

21802 som

Duties & taxes included

In stock

Sold byAmazon KyrgyzstanDelivered 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 Kyrgyzstan.

Secure transaction

Description

⚡ Power up your precision — test smarter, not harder!

SAFETY FIRST - Complies with IEC-1010 double insulation and overvoltage category II standards, keeping you protected during high-voltage testing.
RELIABLE SUPPORT - Backed by 24/7 professional tech support and a 1-year warranty, ensuring your investment is secure and your questions answered.
VOLTAGE FLEXIBILITY - Select from six test voltages (100V to 5000V) to tailor testing to any high-voltage equipment, making it the ultimate versatile tool.
USER FRIENDLY DESIGN - Auto-ranging with a backlit display and non-slip protective case means effortless operation even in dim or challenging environments.
PRECISION MEETS POWER - Accurately measures insulation resistance from 0.1MΩ to a staggering 200GΩ with ±3% accuracy, ensuring your diagnostics are always on point.

The BTMETER BT-6688B is a high-precision digital megohmmeter designed for professional insulation resistance testing. It offers a wide measurement range from 0.1MΩ to 200GΩ and selectable test voltages up to 5000V. Featuring auto-ranging, a backlit display, and robust safety certifications, it’s engineered for reliable, safe, and versatile use across transformers, motors, cables, and more. Portable and battery-powered, it’s supported by expert 24/7 tech service and a 1-year warranty, making it a trusted choice for electrical professionals.

Specifications

ASIN	B07C2SSH51
Best Sellers Rank	#40,938 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #6 in Insulation Resistance Meters
Brand Name	BTMETER
Color	BT-6688B (1MΩ-200GΩ)
Customer Reviews	4.2 4.2 out of 5 stars (201)
Included Components	1* User manual, 1* BT-6688B Megohmmeter
Item Dimensions	10.4 x 9.2 x 3.5 inches
Item Weight	900 g
Manufacturer	BTMETER
Measurement Type	Ohmmeter, Voltmeter
Minimum Operating Voltage	100 volts
Model	BT-6688B
Number of Items	1
Part Number	BT-6688B
Power Source	Battery Powered
Specification Met	IEC 1010
Style Name	BT-6688B
UPC	703546921777
Warranty Description	1 year

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

Fatima A.

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

3 days ago

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks 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.