Measurement function
State AC current, DC current, AC voltage, DC voltage, resistance, continuity, frequency, temperature, or inrush. A meter that only clamps AC current cannot be lined up with a dual AC/DC jaw even if both say 400 A.
True RMS clamp meter for sale means a quoted configuration
LinkScope Sourcing 52 coordinates factory answers. The phrase true rms clamp meter for sale does not mean a unit is sitting in a cage. It means the supplier is willing to price a named model, with a named RMS method, on a named commercial basis.
Prepare a Telecom RFQFields each supplier must price on the same row
Range and resolution
Record the top of the range and the counts. A 4000-count display and a 6000-count display change the least digit. Ask where the range changes and whether accuracy resets at that break.
Accuracy and frequency range
Measurement accuracy needs a band. Write the supplier figure, such as 2.0% of reading plus 5 counts from 45 Hz to 65 Hz, and a second figure if the band extends to 400 Hz. Crest factor 3 at half scale is a common place the error grows. Confirm the actual curve.
Input category and probes
Ask for the CAT rating and the voltage it is paired with, for example CAT III 600 V. Probe leads are a separate impedance and fuse question. Calibration traceability is a document, not a sentence in the email subject.
Trade-off, new versus refurbished: a new meter may include a full 12-month calibration interval dated near shipment and a warranty that names the factory. A refurbished meter may be the only way to replace a discontinued jaw, but the buyer should demand the last calibration date, the hours or cycles if known, and a statement of which parts were replaced. Both can be valid. They are not the same line item.
Trade-off, factory jaw versus a compatible add-on probe: the original jaw is designed with the meter input. A compatible flexible probe can reach a larger conductor, yet its connector, scaling factor, and stated accuracy belong to that probe, not to the meter face. Request the probe datasheet and do not add the meter percent to the probe percent without a written combination note.
Questions that keep the RFQ from splitting into side emails
Which model and revision is priced?
Family names hide firmware and jaw changes. The quotation should print manufacturer, model, and the datasheet revision the accuracy table came from. An IEEE equipment overview does not prove two meters interoperate with a recorder. That pairing needs the exact interface note.
What is excluded from the unit price?
Case, leads, batteries, calibration certificate, freight, duties, and a spare fuse are frequent exclusions. List them as zero or as separate lines. A blank cell is not a free inclusion.
What evidence arrives with the serial?
Ask for a current datasheet, a calibration certificate tied to the serial or the batch rule the factory uses, and any applicable safety file. If the meter includes a radio for logging, FCC equipment authorization is a model-level question, not a site claim.
How should deviations be marked?
Tell suppliers to mark compliant, deviation, or alternate. An alternate 200 A jaw is not a silent substitute for a 400 A jaw. Quantity, US destination, and requested timing stay on the cover of the same file.
Request factory quotes on one written scope
Send the function, range, accuracy band, safety category, quantity, and destination. The desk will ask suppliers to answer those cells. No street address is published here because the next step is the form, not a counter visit.
Request Factory Quotes