Check the listing for details. Lionel Model 455 Binary Scaler-Ratemeter (1963-1965). Condition: Used. Listed at 850.00 USD. This Lionel Model 455 Binary Scaler-Ratemeter was manufactured between 1963 and 1965. It is a reliable piece of equipment for detecting radiation levels. With a brand that is trusted by many professionals, this scaler-ratemeter is sure to meet your needs. The item is categorized under Business & Industrial, Test, Measurement & Inspection, Test Meters & Detectors, and Radiation Detectors. The brand and model are Lionel 455, while the Radiation Detector Type is a Scaler Ratemeter. With its impressive features, this scaler-ratemeter is an ideal choice for those who require an efficient and accurate detector. Quoting a product notice in the February 1963 issue of Nucleonics: "A new combination ratemeter and scaler combines the advantages of both instruments in one chasis. The scaler is effective as a routine contamination monitor and test instrument and its results are reproducible. The ratemeter accuracy is +/- 5%. The scaling section can resolve pulse pairs of 200 usec separations and will count at a rate of 50,000 ppm. Instrument operates with an assortment of halogen quenched tubes and has a built-in calibration-check signal." Lionel Model 455 Scaler-Ratemeter What is a little unusual about this instrument is the fact that it was built in the early 1960s, yet it employs a binary scaler. By the 1960s, binary scalers were pretty much obsolete having been replaced by decade scalers. I suppose another somewhat unusual thing about this instrument is that it was manufactured by the Lionel Corporation, the same people that make toy trains. Learn more about Lionel's entry into the nuclear business. Range: 0-500, 0-5,000 and 0-50,000 cpm High Voltage Supply: 0-1500 volts Size: 17 1/2” x 7 1/2” x 14” References Product notice. Nucleonics. February 1963, p 82. Lionel Operating Manual. No date on manual but schematics dated 1962. Nucleonics. June 1963, p 101.