test equipment

Siglent SMM3000X series source-measure unit with its 5-inch touchscreen
Siglent Releases the SMM3000X Source-Measure Unit With 10-Femtoamp Resolution
Workshop & Tools Electronics Tools
Siglent's SMM3000X source-measure units offer 6.5 digits, up to 210 V and 3.03 A DC (10.5 A pulsed), 10 fA and 100 nV resolution, 100,000 points per second, and 31.8 W per channel.
Siglent SDM4000A bench digital multimeter with its touchscreen display
Siglent Launches the SDM4000A Bench Multimeters, Up to 6.5 Digits and 50,000 Readings a Second
Workshop & Tools Electronics Tools
Siglent's SDM4000A bench multimeters come in 5.5-digit and 6.5-digit versions, with up to 2,200,000 counts, 50,000 readings per second, a 20 μs sampling interval, and a touchscreen.