Meters for Ionizing Radiation Geiger Counter

Measurement Equipment (nuclear radiation)

The Radalert 100:(geiger counter)

The Radalert 100, our most popular product, is a general purpose geiger counter. It measures alpha, beta, gamma, and x-radiation. Its digital display shows readings in your choice of counts per minute (cpm) or mR/hr, up to 100,000 cpm or 100 mR/hr, or in accumulated counts. A red LED blinks and a beeper chirps with each count (the chirp can be muted). An audible alert sounds when the radiation reaches a user-adjustable level. This geiger counter meets CE certification requirements for Europe.

IDR-radalert 100

$495.00

Use the Radalert 100(geiger counter) to:

Monitor personal radiation exposure
Monitor an area or perimeter
Detect nuclear radiation leaks and contamination
Ensure regulatory compliance
Monitor changes in background radiation
Demonstrate principles of nuclear physics
Check for radioactive minerals in the Earth

Specifications:

Sensor: Halogen-quenched Geiger-Meuller detector with mica end window (LND712); detects Alpha, Beta, Gamma, and X-radiation. End window density is 1.5-2.0 mg/cm². Side wall is .012" #446 stainless steel.
Display: 4-digit liquid crystal display with mode indicators
Operating range: mR/hr: .001-110.00 mR/hr (Cs-137); CPM: 0-350,000; Total: 0-9,999,000 counts
Calibration: Cesium 137 (gamma)
Sensitivity: 1000 cpm/mR/hr referenced to Cs-137
Accuracy: ±10% typical; ±15% max.
Alert: User-adjustable alert level to 50 mR/hr & 160,000 CPM
Count light: Red LED flashes with each count
Beeper: Chirps for each count (can be muted)
Outputs: Stereo 3.5 mm jack sends counts to computers, data loggers, several educational data collection systems and other CMOS-compatible devices. Submini jack provides audio output to an external earpiece, amplifier, or tape recorder.
Input: Mono 2.5 mm jack provides electronic calibration input
Power: One 9-volt alkaline battery; average battery life is 2160 hours at normal background, 625 hours at 1 mR/hr with beeper off
Size: 150 x 80 x 30 mm (5.9 " 3.2"x 1.2")
Weight: 225 grams (8 oz) including battery
Options: European SI units (mSv/hr); Computer cable and software (IBM PC compatible)

Specifications subject to change without notice.

Monitor 4

geiger counters, ionizing radiation detectors

IDR-Monitor 4: $395.00

The Monitor 4 is a general purpose geiger counter that measures alpha, beta, gamma, and x-radiation over 3 selectable ranges. A red LED blinks and a beeper chirps with each count (the chirp can be muted).

Use the Monitor 4 to:

· Detect radioactive sources in the home or workplace
· Monitor personal radiation exposure
· Ensure regulatory compliance

Specifications:

Sensor: Halogen-quenched Geiger-Meuller detector with mica end window (LND712); detects Alpha, Beta, Gamma, and X-radiation. End window density is 1.5-2.0 mg/cm². Side wall is .012" #446 stainless steel.
Range Switch: X1, X10, X100, Battery Check.
Operating range: 0-.5, 0-5, 0-50 mR/hr and 0-500, 0-5,000, 0-50,000 CPM
Sensitivity: Detects alpha down to 2.5 MeV; typical detection efficiency at 3.6 MeV is greater than 80%.
Detects beta at 50 keV with typical 35% detection efficiency.
Detects beta at 150 keV with 75% typical detection efficiency.
Detects gamma and x-rays down to 10 keV typical through the window, 40 keV minimum through the sidewall of the detector.
Normal background is approx. 10-20 CPM
Gamma sensitivity is 1000 CPM/mR/hr referenced to Cs-137
Accuracy: ±10% of full scale (referenced to Cs-137).
Count light: Red LED flashes with each count
Beeper: Chirps for each count (can be muted)
Power: One 9-volt alkaline battery. Battery life is up to 2,000 hours at normal background radiation levels.
Size: 145 x 72 x 38 mm (5.7 x 2.8 x 1.5 in.).
Weight: 178 grams (6.3 oz.) without battery

Specifications subject to change without notice.

The Inspector: geiger counters
Handheld Surface Contamination Monitor

IDR-Inspector $625.00

A picture of IDR-Inspector (geiger counters)
rearview

The Inspector(geiger counters) measures alpha, beta, gamma, and x radiation using a 2-inch pancake GM detector with high sensitivity to common beta and alpha sources. The easy-to-read digital display shows readings in your choice of mR/hr, CPM, CPS, or m Sv/hr. The Inspector automatically compensates for GM tube dead time. Anti-saturation circuitry prevents jamming in high radiation fields. The Inspector meets CE certification requirements for Europe.

A picture of IDR-Inspector(nuclear radiation detector)
endview

The Total/Timer feature takes timed readings for periods from one minute to 24 hours for precise measurement of low-level contamination. Our "safety first" calibration feature can eliminate radiation exposure to the calibration technician.

Specifications:

Detector: Halogen-quenched Geiger-Mueller tube. Effective diameter 1.75" (45 mm). Mica window density 1.5-2.0 mg/cm²
Display: 4-digit liquid crystal display with mode indicators
Averaging Periods: Display updates every 3 seconds, showing the average for the past 30-second time period at normal levels. The averaging period decreases as the radiation level increases. User can select fast 3-second averaging period.
Operating Range: mR/hr: .001 to 100.0; CPM: 0 to 300,000; Total: 1 to 9,999,000 counts; mSv/hr: .01 to 1,000; CPS: 0 to 5,000
Efficiency: Sr-90 (546KeV, 2.3MeV b max): approx. 75%; C-14 (156KeV b max): approx. 11%; Bi-210 (1.2 MeV b max): approx. 64%; Am-241 (5.5 MeV a): approx. 36%
Sensitivity: 3500 CPM/mR/hr referenced to Cs-137
Accuracy: ± 15%
Timer: Can set 1-10 minute sampling periods in 1-minute increments, 10-50 minute sampling periods in 10-minute increments, and 1-24 hour sampling periods in 1-hour increments
Count Light: Red LED flashes with each radiation event
Audio: Beeper beeps with each radiation event; can be muted
Outputs: Dual miniature jack drives CMOS or TTL devices, sending counts to computer or data logger. Submini jack allows for electronic calibration.
Anti-Saturation: Readout holds at full scale in fields up to 100 times the maximum reading
Temperature Range: -10° to +50° C , 14° to 122° F
Power: One 9-volt alkaline battery; battery life is minimum 200 hours at normal background, minimum 24 hours at 1 mR/hr
Size: 150 x 80 x 30 mm (5.9"; x 3.2"; x 1.2")
Weight: 350 grams (12.5 oz) with battery
Option: Wipe Test Plate; Computer cable and software (IBM PC compatible)

Specifications subject to change without notice.

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