Sentry Dosimeter - Datalogging

  • Model: Sentry


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Inexpensive, Data-logging, Alarming Dosimeter
Low Cost, quality solution to your personnel dosimeter requirements

The Radiation Alert® Sentry is a Personal Alarming Dosimeter / Ratemeter designed to protect personnel who are exposed to x-ray or gamma radiation. The pocket sized unit has built in memory for recording data points for tracking accumulated exposure. The Sentry Software option enables the user to generate incident reconstruction for analysis. The vibrating and audio alarm can be easily set to desired levels for dose and dose rate. The Sentry features an audio switch to choose between audible clicks or a discreet silent mode.


Detector: Energy Compensated GM Tube
Dose Rate: 0.1 – 15 R/hr (1 µSv/hr – .15 Sv/hr)
Accumulated Dose: 0.1 – 65 R (1 µSv – .65 Sv)
Energy Response: Down to 20 KeV
Switch Functions: Power, Vibrate and Audible Alert, Silent Vibrating Only Alert, and Audio Clicks On/Off
Output: Mini-USB
Accuracy: Typically ±15% of reading (Cs137)
Dose Rate Linearity: Better than ±15% up to 15 R
Gamma Sensitivity: 1.5 cps/mR/hr referenced to Co-60
Audible Alarms: 90db @ 1 ft.
-accumulated dose
-dose rate
Alarm Thresholds:
-Default: Dose 500 mR / Rate 50 mR/hr
-Sievert Option: Dose 5000 μSv / Rate 500 μSv/hr Alarm and warning levels are user selectable with the Free Sentry Software
Connectors: Headphone Connector, Internal Serial Header connector (cable comes w/ Optional Sentry Software).
Power Requirements: 9 Volt Battery. Typical battery life is 1500 hrs at background.
Temperature Range: -10° to +50°C (14° to 122°F)
Humidity: 10% to 70% Non-Condensing
Weight: 243 g (8.6 oz)
Size: 3.8 x 2.4 x 1 in (96.5 x 70 x 25.4 mm)
Enclosure: Anodized Aluminum Housing w/ Metal Belt Clip
Includes: NIST Calibration, 9 volt battery, Free SentryCom software, USB Cable, Limited One Year Warranty
Sentry Software

The optional Sentry Com Software enables you to set the values for dose and dose rate alarms and warnings, set the Cal Factor, and the data logging frequency. It also allows the user to download the accumulated dose data, which includes time and date stamp, exposure, and power cycle identifiers (shows all zeros for data point when unit is turned off and on) for analysis.

This product was added to our catalog on Thursday 28 September, 2017.


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