200A True RMS Open Jaw Clamp Meter (CM200)The Triplett Model CM200 True RMS Open Jaw Clamp Meter can measure AC current up to 200A without breaking the circuit and fits into tight spaces where a standard clamp meter jaw is unable to close. Read More > DESCRIPTION The Triplett Model CM200 True RMS Open Jaw Clamp Meter can measure AC current up to 200A without breaking the circuit and fits into tight spaces where a standard clamp meter jaw is unable to close. This saves time and the circuit