Catalogue → Keysight → Universal counter (53xxx)
53131A
Keysight · Test equipment · Universal counter (53xxx) confirmed
The Keysight 53131A is test equipment in the Universal counter (53xxx) range. 225MHz universal counter.
What 53131A sells for
No auction result recorded for this part yet. We publish hammer prices only where we have watched a lot through to close — never an estimate in their place.
See 53131A listed on eBay → Asking prices, not sold prices. We may earn a commission.
| Manufacturer | Keysight (also Agilent, Hewlett-Packard, HP) |
|---|---|
| Family | Universal counter (53xxx) |
| Category | Test equipment |
| Without separators | 53131A |
| Notes | 225MHz universal counter |
What changes what 53131A is worth
Same catalogue number, different money. These are the attributes that separate two otherwise identical 53131A units — check each one before you quote or bid.
Option codes
Installed option codes. On configured units these are most of the value.
On the motor or drive nameplate, after the base part number.
Firmware revision
Firmware/FRN revision. Buyers match it to an existing project; a mismatch can make the unit useless to them.
On the label as "FRN" or "FW", and on the module's own display if it powers up.
Tested or untested
Tested / as-is / new-in-box. The single biggest multiplier on used price.
Not on the plate. It comes from whoever pulled the unit, and it moves the price more than anything printed.
Questions
What is a 53131A?
The Keysight 53131A is test equipment in the Universal counter (53xxx) range. 225MHz universal counter.
What changes what a 53131A is worth?
Two 53131A units with the same catalogue number can be worth different amounts. What separates them: option codes, firmware revision, tested or untested. Installed option codes. On configured units these are most of the value. Firmware/FRN revision. Buyers match it to an existing project; a mismatch can make the unit useless to them. Tested / as-is / new-in-box. The single biggest multiplier on used price.
Where do you find the series or revision on a 53131A?
Option codes: On the motor or drive nameplate, after the base part number. Firmware revision: On the label as "FRN" or "FW", and on the module's own display if it powers up. Tested or untested: Not on the plate. It comes from whoever pulled the unit, and it moves the price more than anything printed.
Who makes the 53131A?
Keysight makes the 53131A. The same equipment is sold and labelled as Keysight, Agilent, HP, Hewlett-Packard, Hewlett Packard.