Easy to operate, rugged for rough outdoor use, and high precision.
 This unit is used by virtually every research, nuclear & government facility in the USA,.. not to mention hospitals, homeland security departments, etc.
These Geiger Counters & Probes are Brand New, factory fresh, and fully warranted for a period of 1 year.
Each unit is individually tested and supplied with a certificate of calibration.
Modern IC technology and state-of-the-art design make this a fantastically accurate and reliable unit. Can be used with either the standard Beta-Gamma probe, or the highly sensitive Alpha-Beta-Gamma probe. Probes are interchangeable with no adjustment necessary.
Perfect for just about any low to moderate radiological use, the Professional Geiger Counter is used by Scientists, Prospectors, Border Patrols, Hobbyists, Rock Collectors Engineers and Technicians all over the world.
The Professional Geiger Counter comes complete with a Uranium ore sample so you can test the unit at any time. Uses 2 ordinary "D" batteries.
Uses either one of the optional probes listed below. 

• 3 Ranges
• Interchangeable probes
• Range from 0 - 50 mR/hr, or 0 - 50,000 cpm
• Greater Than 2000 Hour Battery Life

Meter Dial: 0 - 5 mR/hr, 0 - 50k cpm
Multipliers: X0.1, X1, X10
Linearity: Reading within ±10% of true value with detector connected
Connector: Series "C"
Audio: Built in unimorph speaker with ON/OFF switch (greater than 60 dB)
High Voltage: Adjustable from 200 - 1500 volts
Response: Toggle switch for FAST (4 seconds) or SLOW (22 seconds) from 10% to 90% of final reading RESET: Push-button to zero meter
Power: 2 each "D" cell batteries (housed in sealed compartment that is externally accessible)
Battery Life: Typically greater than 2000 hours with alkaline batteries (battery condition can be checked on meter)
Meter: 2.5" (6.4 cm) arc, 1 mA analog type
Construction: Cast and drawn aluminum with polyurethane enamel paint
Temperature Range: -4°F(-20°C) to 122°F(50°C)
May be certified for operation from -40°F(-40°C) to 150°F(65°C)
Size: 6.5" (16.5 cm) H X 3.5" (8.9 cm) W X 8.5" (21.6 cm) L
Weight: 3.5 lbs. (1.6 kg) including batteries

Geiger Counter with 'Hot Dog' Beta-Gamma probe.
( the most popular configuration for all general purpose work )
Detects Beta & Gamma radiation
$820.00

Geiger Counter with high sensitivity 'Pancake' probe.
( highly sensitive, ideal for frisking & detecting food/soil contamination )
Detects Alpha, Beta & Gamma radiation
$820.00

Geiger Counter with ultra sensitive 1" x 1" Scintillator probe.
( highest sensitivity - aerial survey and long range radiation detection )
Detects Gamma radiation
$1,110.00

The Professional Geiger Counter

Professional Geiger Counter
shown with optional
Alpha-Beta-Gamma
'Pancake' Probe

Probes and Optional Equipment
for the Professional Geiger Counter

.

Beta-Gamma Probe
(Hot Dog probe)

General purpose probe for detecting both Beta & Gamma radiation.
Ideal for prospecting, basic measurements & laboratory use.

Use for:  Beta & Gamma radiation detection
Detector Type:  30 mg/cm² stainless steel wall halogen quenched G-M
Operating Voltage:  900 volts
Connector:  Series "C"
Construction:  1000 mg/cm² stainless steel housing with rotary beta window
Temperature Range:  -4° F(-20° C) to 122° F(50° C)
Size:  1.2" (3.0 cm) diameter X 6.5" (16.5 cm) L

Beta-Gamma probe: $270.00

'Hot Dog' Beta-Gamma probe

Alpha-Beta-Gamma Probe
(Pancake probe)

High sensitivity probe for detecting Alpha, Beta & Gamma radiation. Ideal for frisking/screening, detecting food & soil contamination & laboratory use.

Use for:  Alpha, Beta & Gamma radiation detection, Frisking
Detector Type:  Pancake type halogen quenched G-M
Operating Voltage:  900 volts
Connector:  Series "C"
Construction:  Aluminum housing with polyurethane enamel paint
Temperature Range:  -4° F(-20° C) to 122° F(50° C)
Size:  1.8" (4.6 cm) H X 2.7" (6.9 cm) W X 10.7" (27.2 cm) L

Alpha-Beta-Gamma probe: $270.00

'Pancake' Beta-Gamma probe

Scintillator Probes

Extremely high sensitivity, Scintillator-type probes.
These probes contain a Thallium doped Sodium Iodide NaI(Tl) crystal and an optical detection (photomultiplier) tube. When Gamma radiation strikes the crystal, it produces microscopic flashes of light that are picked up & amplified by the photomultiplier tube sealed inside. This signal is in turn sent to the Geiger Counter the probe is plugged into. Scintillator probes can detect radiation from great distances and are even usable in aircraft for ground radiation survey. Basically the larger the crystal is, the more sensitive the probe is. As a comparison, we tested a standard 'Hot Dog' probe on a small pile of Uranium ore tailings near an abandon mine. The Hot Dog probe detected the radioactive tailings pile about 6 feet away. Using our smallest Scintillator probe ( 1" x 1" NaI(Tl) crystal ),
we detected the same tailings pile 150 feet away.

Scintillator probes are available with a 1" x 1" crystal,
2" x 2" crystal, or a 3" x 3" crystal.

Use for:  Long range/high sensitivity radiation detection.
Detector Type:  magnetically shielded photomultiplier & thallium doped sodium iodide crystal.
Operating Voltage:  Typically 500 - 1200 volts
Connector:  Series "C"
Construction:  Aluminum housing with polyurethane enamel paint
Temperature Range:  -4° F(-20° C) to 122° F(50° C)

1" Scintillator probe: $560.00

2" Scintillator probe: $1,295.00

3" Scintillator probe: $2,200.00