Check the listing for details. Coaxial Dynamics 81000A RF Wattmeter Bird 43 Elements Compatible. Condition: New. Listed at 449.00 USD. CDI Model 81000A RF Wattmeter Bird Model 43 elements 100% compatible (elements are not included)Range Elements Are Not Included Martin RF Supply 100% Satisfaction Warranty Large Easy to Read 4-1/2 inch Mirrored Scale Shock Mounted "Taut Band" Meter Quick Match Connectors Type N(F) or UHF (your choice) Fast Shipping from Martin RF Supply Internal 7/8" Line Section Gold Plated Plug-In Elements (not included) Two Year Limited Warranty Equivalent Bird 43 performance specifications Bird Wattmeter elements are 100% Compatible The Model 81000-A Wattmeter, now you can measure RF Power in 50-Ohm coaxial cable and transmission lines, and accept plug-in elements in the range of 100 mW to 10 kW full scale, and from 0.45 to 2300 MHz. Elements are not included. Complete with a built-in line section, Quick Match RF connectors for 50-Ohm cables and transmission lines offer the speed and reliability you expect from Coaxial Dynamics. The 81000-A is easy to use. Simply connect the Wattmeter between the power source and antenna or dummy load, plug in the appropriate measuring element and select forward or reflected direction. The RF power is directly displayed on the 4-1/2" triple scale meter. Versatile and strong, the Model 81000-A can be used with accessory cables up to 200 feet from the meter and is protected by a rugged, virtually indestructible shock-proof housing. For added convenience, two sockets for storage of additional elements are located on the back of the unit. The use of a rugged shock mounted meter with a mirror-backed scale along with superior taut band technology, provides reliable and accurate readings, and also satisfies both the US Navy and Canadian standards for bounce and vibration. This is your assurance of complete accuracy. Your confidence in the quality and dependability of the Model 81000-A Wattmeter is assured with the Coaxial Dynamics Two Year Limited Warranty. Specifications Power - 100 mW to 10 kW (elements are sold separately) Frequency Range - 0.45 MHz to 2300 MHz (elements not included) VSWR - 1.05:1 max. (with type N connectors) Accuracy - ±5% of full scale Impedance - 50-Ohms RF Connectors - Type N Female or UHF (see note below) Dimensions - (H x W x D)7.3 in. (18.5 cm) x 5 in. (12.7 cm) x 4 in. (10.2 cm) Weight3.6 lbs. (1.6 kg) Fast Shipping from Martin RF Supply Case Finish - Textured Blue Polyurethane Enamel Note: Other Quick Match Connectors are available. Questions? Martin RF Supply 9-5 EST USA Free Shipping is not available for packages weighing 1 lb or more going to Alaska, Hawaii, and US Protectorates.Please contact us for shipping rates for these locations. International CustomersWe will not be responsible for any shipments to International Freight Forwarders.If you use a freight forwarder it will be at your own risk.