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Radiation detector “Radex” Model RD1503+

RADEX RD1503+ (2018) with Dosimeter: High accuracy geiger counter, radiation detector

Geiger counter for everyone: Simple, Reliable and Affordable.

This model is the next version of RADEX 1503 model upgraded in 2018.

RADEX RD1503+  can be used by non-professionals for quick and reliable measurement of radiation background in environment, soil and non-consumable products.


RadexRead features:
• Detect and Measure β (Beta), γ (Gamma) and X-ray Radiation
• Simple interface
• Multi-threshold audio alarm with range from 0.10 to 0.90 µSv/h
• BACKGROUND mode detection: designed to identify sources of higher radiation compared to base level

Specifications Summary:

·   Gamma and Beta radiation detection

·   Use Geiger-Muller type of detection similar to the one used in professional dosimetric devices

·   Two measurement units (µSv/h and µRem/h)

·   Fast measurement cycle: 40 sec for standardized measurement with 10 sec initial result

·   Detection range: 0.05~9.99 µSv/h

·   Precise measurement : ±15% accuracy

·   Vibration alarm

·   Multi-threshold audio alarm with range from 0.10 to 0.90 µSv/h with an 0.10 µSv/h interval

·   BACKGROUND mode detection: designed to detect sources of higher radiation compared to base level

·   40 second initial reading

·   Requires 2 x AAA batteries (included).

·   One year Manufacturer’s Warranty included


Additional information


0.5 g


Geiger counter for everyone: Simple, Reliable and Affordable.

Range of indications (μSv/h)

0.05 – 9.99

Scale range of Gamma-radiation energy (MeV)

0.1 – 1.25

Scale range of X-ray radiation energy (MeV)

0.03 – 3.00

Scale range of Beta-radiation energy (MeV)

0.25 – 3.5

Error - of dose rate , not more, where P is the dose rate in µSv/h (%)


Audio Alarm threshold levels - dose rate (µSv/h)

0.10 – 0.90

Measurement Cycle (seconds)

40 ± 0.5



Height x Width x Depth (mm)

105 х 60 х 26

Weight (g)


Batteries («AAA») (pcs)


Time of continuous operation, not less than (hours)



This product was added to our catalog on Tuesday 22 October, 2019.
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Nanomachinery Co., Ltd.
4, Soi Petchkasem 100 ,Phetchkasem Rd. ,Bangkaenue ,Bangkae ,Bangkok, 10160, THAILAND.
Tel : 086-322-6876 ,02-421-9927 ,Fax : 02-809-2591 E-mail : pongthorn@nano-machinery.com
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