QR10 is a resistance decade box with modern UI and communication port. (Click this link for Datassheet and Manual). It has been verified by dozens Kickstarter backers and companies for their professional projects worldwide.

Introduction:

As a candidate for replacing/upgrading conventional resistance decade box, QR10 has as good as, if not better than, the top class of the latter on the accuracy, range, resolution/step, repeatability, and temperature coefficient. It provides a " better operation experience " on the user interface, much higher rated power, and much smaller dimensions. More importantly, it's just a " programmable " resistance substitution box the way it should be – the user can either set desired output value by an integrated keypad or remotely control it via a USB-Serial COM port.

The COM port mentioned makes it suitable for advanced applications such as data acquisition and auto-tests, for example, sensor simulation and sensor auto-calibration.

QR10 Series Features:

• TRUE resistance generated by relay-resistor network
• Easy-to-use keyboard and useful OLED display
• USB to serial communication interface, support private AT instruction set
• Initial high accuracy (>500Ω): ±0.05%(class T)； ±0.02% (class B)
• NO RESIDUAL RESISTANCE
• Wide range: 1Ω -630kΩ (0.1Ω/0.07Ω steps) 1Ω -1.2MΩ (0.125Ω steps) 1Ω -8.4MΩ (1Ω step)
• Maximum power rating up to 2.0W
• Safety output limit(user definable)
• Latched output with ZERO power consumption
• Allow user field calibration (after calibration accuracy can follow reference meter’s for grade B)
• Rechargeable Li-PO battery
• Portable with small dimensions and solid metal housing: 5.5cm (OD)× 5.5cm (H) or 7.0cm (H)

QR101B-1M-R1 specification:

• 0.1 Ohm steps, 1 Ohm to 630k Ohm range
• 1 W rated power (up to 2 W for some points)
• >500 Ohm: ±0.02% accuracy @Cali.Temperature ±3℃; <500 Ohm: ±0.1 Ohm
• TCR: 25ppm (>100 Ohm, the Kickstarter version on sale)
• Built-in high accuracy temperature sensor
• Auto-scan function (config. via keypad)
• Allow user calibration (very powerful, can increase the accuracy to ±0.01%)
• With factory calibration cert in pdf format.

Comparison to competitive products

Our KS campaign:

For more info. please refer to our campaign page