Digital rolling measuring ruler with LCD display
A pocket-sized electronic ruler that rolls along flat, curved and irregular surfaces and shows the length on a backlit LCD screen.
No reviews yet$73.99 / each
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- Measures curved, flexible and irregular surfaces
- Up to 9.99 m per pass, 99.99 m cumulative
- 200 mAh battery, charges over the Type-C cable
Arrives Oct 6 – Oct 16 · ships from our international warehouse
Specifications
- Materials
- Plastic
- Weight
- 76–380 g
- Country of origin
- China
Shipping & returns
Arrives Oct 6 – Oct 16 with tracking. 30-day returns from the day of delivery.
Product safety
- Materials
- Plastic
Built for shapes a straight ruler cannot follow
You roll the wheel along the surface and the reading appears on the screen. That works on curved edges, fabric, clothing and other irregular objects where a rigid ruler or a stiff tape is awkward.
Clear readings on a 1.8 inch screen
The 1.8 inch VA LCD shows large digits with a backlight you can set between 30 and 180 seconds. A buzzer can be switched on or off, and 10 groups of past measurements can be called up again.
Fits in a hand or a pocket
The body measures 53 mm across and 15 mm thick and weighs 35 g, with an aluminium alloy and silicone shell and a 4H hard screen cover. Three keys handle the operation, so there is little to learn.
Charges with the included Type-C cable
The built-in 200 mAh lithium battery is charged directly through the Type-C port, so there are no batteries to replace. Measuring accuracy is 0.5 percent and can be adjusted steplessly.
How it works
- 1
Charge it
Connect the included Type-C cable to the port on the side and let the battery charge before first use.
2Set it to zero
Switch the device on with the three keys, choose your settings such as backlight and buzzer, and zero the reading.
- 3
Roll and read
Run the wheel along the edge or surface you want to measure. The length appears on the screen, and further passes can be added up to a cumulative total.
What's in the box
- 1 x electronic ruler
- 1 x Type-C charging cable
How it compares
| Feature | Digital rolling measuring ruler with LCD | Typical retractable tape measure |
|---|---|---|
| Digital readout on an LCD screen | ||
| Follows curved and irregular surfaces | Rolling wheel | Limited |
| Stores past measurements | 10 groups | |
| Power source | Rechargeable, Type-C cable | None needed |
| Cumulative measuring | Up to 99.99 m | Manual |
FAQ
Does it use a laser or infrared?
No. The supplier states that the product does not include laser or infrared functions. It measures by rolling the wheel along the surface.
How far can it measure?
Up to 9.99 m in a single measurement. With automatic accumulation, the total can reach 99.99 m.
How accurate is it?
The stated accuracy is 0.5 percent, with stepless adjustment support.
How is it powered?
It has a built-in 200 mAh (0.74 Wh) lithium battery that is charged through the Type-C port. A Type-C charging cable is included.
What do the multipack options contain?
You can choose Black (single), Black 2PCS, Black 3PCS or Black 5PCS. Each pack contains that number of electronic rulers.
How long is delivery and can I return it?
Every order ships with tracking. The delivery window for your country is shown next to the price and again at checkout, because it depends on which warehouse has your item in stock.
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