![AGILENT (Used) 53181A 225 MHz, 1-Channel RF Frequency Counter, 10 digits/s, Refurbished - at the Test Equipment Depot AGILENT (Used) 53181A 225 MHz, 1-Channel RF Frequency Counter, 10 digits/s, Refurbished - at the Test Equipment Depot](https://www.testequipmentdepot.com/usedequipment/images/53181a-u.jpg)
AGILENT (Used) 53181A 225 MHz, 1-Channel RF Frequency Counter, 10 digits/s, Refurbished - at the Test Equipment Depot
![Agilent Hp53131a Frequency Meter, High Precision Digital General Purpose Counter, Up To 200 Measurements/sec On Gpib - Tool Parts - AliExpress Agilent Hp53131a Frequency Meter, High Precision Digital General Purpose Counter, Up To 200 Measurements/sec On Gpib - Tool Parts - AliExpress](https://ae01.alicdn.com/kf/S1f512ce82b5845fbae6c22675c761d46s.jpg)
Agilent Hp53131a Frequency Meter, High Precision Digital General Purpose Counter, Up To 200 Measurements/sec On Gpib - Tool Parts - AliExpress
![AGILENT (Used) 53131A 225 MHz, 2-Channel Universal Frequency Counter, 10 digits/s, 500 ps, Refurbished - at the Test Equipment Depot AGILENT (Used) 53131A 225 MHz, 2-Channel Universal Frequency Counter, 10 digits/s, 500 ps, Refurbished - at the Test Equipment Depot](https://www.testequipmentdepot.com/usedequipment/images/53131a-u.jpg)