This wattmeter has a bnc output to enable other RF equipment to be connected. The slug is for marine band and comes complete with a dummy load and various connectors. The case has seen better days but still gives good protection for the instrument.
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Surecom SW-102 SW102 120W VHF UHF 126-525Mhz Digital Antenna Power SWR Meter VSWR N-J Connector Frequency Counter Power Meter
Aliexpress UK
25L2 1.99-2.2GHz 25W.
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NISSEI Mini TX-502 SWR/Watt Meter 1.6-525MHz HF/V/U Band 200W High Quality Power Meter for Walkie Talkie
Aliexpress UK
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SW-33Plus Mini Power&S.W.R Meter VHF/UHF dual Band 125-525MHz for Analog Walkie Talkie
Aliexpress UK
Bird Electronics Corp. Specification: 50W, 100-250MHz.
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SURECOM SW-33Plus VHF/UHF 100W Dual Band 125-525MHz For Analog Walkie Talkie Mini Power&S.W.R Meter
Aliexpress UK
This Bird Model Type 4431, can also provide an adjustable level RF sample output, via the BNC socket, for testing purposes. I haven't tested this output, so can't vouch 100% for its function, but everything else seems to be working just fine.
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Surecom SS11 Field Strength Power Tester RSSI Meter & Antenna 100KHz-3000MHz High Sensitivity Instrument HAM Radio Accessory
Aliexpress UK
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SURECOM SW102S SWR Tester Power & Frequency Counter SO239 125-525MHz 120W Max for Ham Radio 2 Connector Adapters Meter Kit
Aliexpress UK
Bird Digital Power Meter 5000 Fully functional. - Bird 100 T MN - Bird DPM 500C (x2) - Bird 5010 - Bird Meter 5000 - Power supply - Serial Cable - Paperwork - Not Bird carrying case
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Surecom SW-114 100W SWR/RF/Field Strength Test Power Meter for Relative Power 3 Function Analog with Field Strength Antenna
Aliexpress UK
Good condition. Sold as-is.
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SURECOM SW-33Plus 100W Mini Power & SWR Meter VHF UHF 125-525MHz With Adapter for Walkie Talkie
Aliexpress UK