NDS Products, Inc.

                         Manufacturer of Nuclear Radiation Detection Instruments


    ND-20

    Rugged Die Cast Aluminum Belt Worn Personal Alarm, Dual Range for Beta, Gamma and X-Ray

    Emits a short constant "chirp" which intensifies as radiation levels increase

    Alarm output at six inches is 100 decibels

    Operates on one 9 volt battery

    Dual range with High/Low settings: High range produces 60 "chirps" in a 10 mR/hr field, Low range produces 60 "chirps" in a 1 mR/hr field (Cs-137)

    Halogen quenched GM tube, Gamma and X-Ray above 12 KeV, Beta above 200 KeV

    2.5" W x 4.25" L x 1.25" D excluding belt loop

    8.5 oz

    CE