My unit used to work, but now despite buying two other new tubs of strips all I get is E4. Any ideas?

Maybe you need to check the batteries. I don't know if this product has a QC (quality control) mode but we have this on our machines in hospitals. We perform QC checks to see that our machines always work. Hope this helps.

The strips for this are not available at the moment; are there any other brands of strips that are compatible with this device?

Unfortunately, due to the current circumstances things are taking slightly longer than usual. We are expecting to have stock in 3-6 weeks.

Does it come with a sim card that fits to side of monitor?

Each tub of test strips (whether they be Ketone or Glucose strips) come with their own chip (but it's not a "SIM" card as they go in mobile phones right?)

Do you need the ketone chip? As I can't find it anywhere to buy for your product. And it is not included in package.

The code chip is included in the On Call Ketone Test strips. These are not included with the meter.

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Glucose and Ketone Meter (excl. test strips, lancets, lancing device)

Product ID: 48379548

Details

Battery cell composition
Alkaline
Brand
ON CALL GK
Included components
digital-meter
Model name
Blood Glucose
Number of items
1

📊Dual glucose & ketone monitoring - all-in-one

📖Includes detailed instruction manual - easy start

🔋Alkaline battery powered - reliable energy

147 Lei

Duties & taxes included

In stock

Sold byAmazon RomaniaDelivered 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 Romania.

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Description

📈 Stay ahead of your health game with the ultimate dual glucose & ketone meter!

ERROR REDUCING TIPS - Optimized blood sample size guidance minimizes errors, so you get consistent, trustworthy results without the frustration.
USER FRIENDLY DESIGN - Comes with batteries and a clear instruction manual, ensuring hassle-free setup and reliable readings from day one.
COMPACT TRAVEL READY - Lightweight meter fits effortlessly in your bag, empowering you to monitor your metabolic health anytime, anywhere.
COST EFFECTIVE TESTING - Compatible with On Call Chosen strips, known for affordability without compromising accuracy—save on every test.
DUAL FUNCTION PRECISION - Seamlessly track both glucose and ketone levels with one sleek device, perfect for keto enthusiasts and health-conscious pros.

The On Call GK Dual Meter is a compact, battery-powered digital device designed for precise monitoring of blood glucose and ketone levels. Sold as a meter-only pack, it requires separate purchase of compatible test strips and lancets. Ideal for keto dieters and health-conscious professionals, it offers cost-effective testing with On Call Chosen strips, includes batteries and an instruction manual for easy setup, and supports accurate readings with user tips to reduce errors.

Specifications

ASIN	B0196U6MVA
Battery Cell Composition	Alkaline
Best Sellers Rank	96,455 in Health & Personal Care ( See Top 100 in Health & Personal Care ) 85 in Ketone Testing & Monitoring
Brand Name	ON CALL GK DUAL
Country of Origin	China
Customer Reviews	4.1 4.1 out of 5 stars (107)
Included Components	digital-meter, batteries, instruction manual
Model Name	Blood Glucose and Ketone Meter
Number of Items	1

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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.

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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.

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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

Khalid Z.

Great experience from order to delivery. Highly recommended!

1 week ago

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

2 months ago

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147 Lei

Duties & taxes included

In stock

Sold byAmazon RomaniaDelivered 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 Romania.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Sneha T.

Received my product in pristine condition. Great service overall.

1 month ago

Ayesha M.

The product exactly matches the description. Very satisfied with my purchase.

5 days ago

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