Universal Survey Meter RDS-200
The RDS-200 utilizes field-proven measurement electronics and also the TIM (Time Interval Method) measuring principle, known from RADOS AAM environmental monitoring system. The RDS-200 Meter is an excellent multipurpose radiation meter for a wide range of applications. Especially it was designed for situations where accurate measurements at low dose rate levels are of importance.
•  gamma and X-rays, 50 keV...3MeV. Beta radiation with an external probe
•  dose rate measurement range: 0.01 μSv/h...10 Sv/h or 1 μrem/h...1000 rem/h
•  dose measurement range: 0.01 μSv...10 Sv or 1 μrem...1000 rem
•  weight: 700 g with batteries
•  temperature range: -30°C...+55°C, operating

Multi-purpose Survey Meter RDS-110
The RDS-110 Multi-purpose Survey Meter is a versatile radiation detection meter which has been designed for a wide range of applications in different fields of rescue and other operations involving a possibility for abnormal radiation levels. The functions comprise dose and dose rate measurements and registration with extended upper limit (100 mSv/h), it can be connected to an end window GM tube for contamination monitoring and it can also be used as a fixed gamma alarm monitor with an external gamma probe.
•  gamma and x-rays, 50 keV…1.3 MeV, beta radiation with external probe
•  dose rate 0.05 μSv/h – 99.99 mSv/h, dose 0.001 – 999.9 mSv
•  pulse rate 0.1 – 9999 CPS (external detector)
•  3 x alkaline cell IEC LR6/AA (recommended) or standard dry cell or rechargeable NiCd batteries of the same size
•  temperature range: -25°C...+55°C, operating

AT11** series - Main dosimeter function is to measure equivalent dose and dose rate of short-term and continuous x-ray and gamma radiation. Equivalent dose and dose rate measuring, quick-reaction, wide measuring range from background to emergency values, isotropy and high energy response within wide energy range are effectively realized. Dose rate measurement time with variation coefficient of 20 % does not exceed 60 s for 50 nSv/h, 30 s for 100 nSv/h, 2 s for 2 Sv/h and more. Instrument shows data of average and maximum dose rate values and influence duration for short radiation influence time when it measures dose and dose rate of short-term radiation (single pulse of not less than 30 ms duration or run of pulses). In search mode it is possible to detect point gamma radiation source of 10 kBq at the distance of 10 cm for 2 s. When cap "0.06 - 10 MeV" is taken off, instrument can effectively search beta radiation sources. There is possibility to detect moving sources. When dosimeter switches on following thresholds setup automatically: dose rate threshold is 29 µSv/h and dose threshold is 180 µSv/h. Use instrument keyboard to setup any thresholds from whole measuring range. Instrument provides fixation of maximum dose rate value, saving 100 measurement results for long a period of time, data transfer to PC with the rate from 300 to 19200 baud. AT1121 has self-testing mode which starts at switching-on and continues within dosimeter operation. There is no need to use reference source because of LED stabilization of measuring path.