Radiation measurements - sound signals

Today I took another video. I tested the radiation treshold alarm and detection beeping. 

First radiation detection tests

When I was today at work, I tested how pm1208m detects the radiation. I used 60Co gamma radiation source. For comparsion I used RM552GS geiger counter.

On monday I will do more tests...

PM1208M Unboxing

My PM1208M finally arrived today. Here is unboxing video:

polimaster pm1208 scintillation detector tunning

Guy from Russia have replaced the GM-tube with scintillation detector to increase sensitivity. Video is in Russian with english subtitles.

Polimaster pm1208 dissection

Have you ever wondered what is inside of these gamma watches? Are you thinking of opening your dosimeter watches? You don´t have to. Guy from site http://xronosclock.com/home/?p=4238 dismantled the older version od Polimaster watch - PM1208 and photographed everything.

By clicking you get to the website with PM1208 dissection.

Other Polimaster dosimeter watches

PM1204

Produced since 1994, the very first dosimeter in the form of a wristwatch. Now it is impossible to buy this model, because it is no longer manufactured.

Polimaster PM1204

PM1603A and PM1603B

Professional dosimeter in sport digital watch. Features alarm when preset dose and/or dose rate thresholds are exceeded,  Has memory for 1000 events, that could be transfered via IrDa to PC. It also has alarm clock, timer, stop watch. The display has a backlight. It is also shockproof and waterproof. The difference between PM1603A and PM1603B is probably only in used GM-detector - according to specifications on the producer´s website

Polimaster 1603B

PM1208

Older and simplier variant of PM1208M. The features are almost the same, but it lacks memory for events and IrDa. 

Polimaster PM1208

Polimaster PM1208M specifications

Polimaster PM1208M is a stylish Wrist Gamma Dosimeter and Swiss-made watch in one housing. Manufactured by Belarussian company Polimaster, which is one of biggest dosimeter producer in the world. What does say the official site of this product?

The PM1208M Wrist Gamma Dosimeter is a stylish combination of gamma detector and a Swiss-made quartz watch that continuously monitors environmental radiation levels and alerts user in case of danger with an audible alarm. The PM1208M can be used by both professionals dealing with radiation on a daily basis and concerned citizens.

The PM1208M performs the following functions:

• Continuous monitoring and measuring of the ambient gamma dose and dose rate;
• User alert of hazardous situations with an audible alarm;
• Recording and storing data for up to 500 events in its non-volatile memory;
• Transmiting all recorded data via an infrared channel to a PC for further processing and analysis.

The Swiss-made RONDA 763 with quartz movement ensures the reliability and accuracy of the watch operation. The waterproof steel case enables the use of the instrument on the depths up to 100 meters (328 feet). The watch also has an electroluminescent backlight allowing it to be operated in the dark.

Furthermore, the PM1208M is able to record and store data for up to 500 events in the instruments' non-volatile memory. The data then can be transferred via infrared channel to a PC for further analysis. The user can also use IR channel to change the instrument’s settings by using the Polimaster’s proprietary PC software.

The PM1208M requires only minimum power consumption and will operate continuously for one year from one CR2032 battery.

Your radiation protection posture is only as good as the warning systems that are in place. The small dosimeter is essential for professionals working with radiation sources as well as for anyone concerned with radioecological issues. As the radiation background increases greatly at high-altitudes, Polimaster recommends the PM1208M wrist gamma dosimeter to frequent airplane travelers for monitoring their radiation exposure.

Specifications:

Detector	GM tube
DER Measurement Range	0.01 - 9999.99 μSv/h (1 μR/h - 999.999 mR/h), H*(10)
Dose Rate Accuracy	±20% (in range 0.1 - 9999 μSv/h (10 μR/h - 999.9 mR/h))
DE Measurement Range	0.001 - 9999 mSv (0.1 μR - 999.9 R)
Dose Accuracy	±20% (in range from 0.01 mSv to 9999 mSv (1 mR - 999.9 R))
Energy range	0.06-1.5MeV
Energy response relative to 0.662 MeV  (137Cs)
Survive after momentary influence of maximum permissible gamma radiation within 5 min:
Alarm type:	visual, audio
Physical Parameters
Dimensions	52 x 51 x 20 mm (2'' x 2'' x ¾'')
Weight	100 g (3.5 oz)
Environmental Characteristics
Temperature	0 up to +45 °C (from +32 up to +113 °F) -20 up to +45 °C without correct work of electronic-mechanical quartz watch
Humidity	up to 95% at 40°C (104°F)
Environmental protection	IP68
Drop test
Water resistant	100 m ( up to 330’)
Power
Batteries	One CR 2032 Lithium battery
Battery lifetime (average DER not more than 0.3 µSv/h, alarms activated for not more than 20 s/24 hours)	18 months *backlight is used for no longer than 3 s/24 hours
Battery discharge control	LCD indication
Data channel
Additional
Countdown timer
Display of time to critical exposure
Functions	Quartz clock movement Ronda 763 (Switzerland)
Calendar mode	alarm clock
PC Communication	IRDA

Polimaster PM1208M

You can choose various bands - leather, metal, plastic...

About this site

Hi, I am Pavel Kohout, a nuclear physicist from Czech Republic. I would like to dedicate this blog to the wearable gadget named Polimaster PM1208M. It is smart wristwatch with gamma ray dosimeter. I bought it, because I work in nuclear research and I find it very useful to have dosimeter every time with me. I am not associated with the  Polimaster company. I am just a fan of their product... :-) I have decided to write this blog in english, so people all over the world can read it. If you find any mistake, don´t hesitate and write me about it (for example to the comments), I will correct it.