The Geiger is a low cost Geiger counter without an LCD
display or meter, but with a data port, designed especially for monitoring
radiation through a computer or data logger, where the computer screen serves as
the visual display of radiation count data, or where no visual display is needed
at all - rather, just the data port feature. This makes the Geiger an
excellent instrument to use with the GeigerGraph
software, or in the classroom or the field in educational data collection.
The Geiger detects Beta (good Beta sensitivity), Gamma, and X-radiation.
It is small, lightweight, and portable.
The special glass Geiger-Mueller
detector tube is visible through the translucent Lexan label on the rear panel.
It fluoresces or lights up when exposed to radiation, especially viewable in a dark room.
See photo at right.
The Data Port, located on the side of the instrument, is a dual
miniature jack which accepts a 3.5mm stereo plug, and produces a positive
5 volt pulse each time the Geiger counter detects a radiation count. The
optional Data Cable, which can be purchased separately, is 6 feet long,
with the 3.5mm stereo plug on one end, while the opposite end is a 9 pin RS-232
connector for an IBM PC compatible serial port.
Detailed specifications are listed farther below. Purchase The Geiger
by Adding it to the Shopping Cart immediately below. This product
typically ships within 24 hours.
If you need the optional Data Cable, Add it to the Shopping Cart below.
This product typically ships within 24 hours.
Specifications:
|
Detector |
Glass Geiger-Meuller tube |
|
Window Size |
Sidewall density 50 mg/cm² plus 15 mil Lexan window. |
| Radiation Detected |
Beta, Gamma,
X-ray |
|
Operating Ranges |
0 to 420,000 CPM |
| Display |
None |
| Count Light |
Red LED flashes with each count |
| Beeper |
Chirps for each count (can be muted) |
|
Power Required |
One 9-volt alkaline battery (included in price of the unit) |
|
Battery Life |
About 2000 hours at nomal background
radiation; about 150 hours at 1 mR/hr |
|
Weight |
20 grams (7oz.) including battery |
|
Size |
150 x 80 x 30 mm (5.9 x 3.2 x 1.2 in.) |
| Data Port |
Dual miniature jack (3.5mm) on side to
drive a CMOS or TTL interface to record counts on computer, data logger,
or accumulating counter |
| Audio Port |
Submini jack provides audio output
to an external earpiece, amplifier, or tape recorder |
| Data Cable Option |
6 ft long, connects to 9-pin PC
serial port |
| Options |
Computer cable and software (See Software) |
| Warranty |
One year limited on instrument, 90
days on Geiger-Mueller tube; includes CE mark |
Country of Make |
USA |