Continuous driving for about 40 days with one battery, high performance small radiation measuring instrument (Geiger counter) "GC-SJ1"

In response to the accident of the Fukushima Daiichi nuclear plant due to the Great East Japan Earthquake, radioactive substances leaked into the atmosphere, "Radiometer (Geiger counter)Although attention is gathered, the latest model realizing the overwhelming long-lived life that compactness and light weight entering into the pocket newly, and driving for about 40 days with one battery "GC-SJ 1"Was announced.

Details are as below.
Release of radiation measurement instrument GC-SJ1

According to the press release of System Talks, the company is to release a new type of radiation measuring instrument "GC-SJ1" from April 11. The price is open, the direct selling price on the official page will be cheaper than the regular price (88,000 yen), the emergency disaster countermeasure price of 68,000 yen.

"GC-SJ1" has dramatically improved sensitivity and reliability compared with the conventional system by adopting state-of-the-art semiconductors in the sensor section, it is a model realizing long life, compact and lightweight body, low power consumption, Measurement range is more than 10 times wider, and measurement of radiation and radioactivity of 0.1 microsieverte to 1000 mSv per hour (1 million microsievert) is possible.

In addition to displaying the current radiation dose, maximum value, cumulative radiation dose, etc., it also has a function to sound an alarm alarm when a radiation value exceeding the specified value is detected, so there is no need to constantly monitor the detection value , The measurement range and the alarm threshold can be arbitrarily adjusted. In addition, it also supports usage such as setting high thresholds when used in areas adjacent to danger, and setting low thresholds for early evacuation of the general population.

This is the "GC - SJ1" main unit. The body size is about 62 × 93 × 28 mm, the weight including batteries is about 90 grams.


Continuous operation for about 40 days is possible with one AA battery type 3.6 V battery.


This place I put in my pocket is like this.


It is thin, lightweight, compact and easy to carry, and it seems to be a considerably useful item for disaster countermeasures etc, but if possible we should be concerned about radiation values ​​in the surroundings with "GC - SJ 1" I just hope not to continue