Amprobe RS-3 Rotary-Scale Clamp-On Accessories accompany the vintage RS-3 Rotary Scale Clamp-On Meter, with Extendo Leads and the A-47L accessory listed as compatible options. The RS-3 itself is a 1 A, 600 V analog clamp meter with AC voltage ranges of 0–150, 0–300, and 0–600 V, AC current ranges of 0–6, 0–15, 0–40, 0–100, and 0–300 A, and an ohms scale centered around 25 Ω; it operates on 50/60 Hz with Volts and Amps accuracy of ±3% of full scale. Extendo Leads are referenced as RS-3 accessories, available from Amprobe distributors, and the A-47L is noted as another compatible accessory for extended measurements.
