Coupling intuitive touchscreen display with low-noise drive electronics, QCL LAB Series features 0.4 µA RMS noise current and 1 nA/√Hz average current noise density up to 100 kHz, allowing lowest possible detection thresholds. Models are available with output currents of 500, 1,000, 1,500, and 2,000 mA in constant current mode. Operating stand-alone or via USB or Ethernet, drivers feature adjustable compliance voltage up to 20 V with 2–3 MHz analog modulation bandwidth.