Measurement Equipment (nuclear radiation)
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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.
A picture of IDR-Radalert 100 (geiger counter)
IDR-radalert 100 $495.00: In stock
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 lack 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: In stock

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 Alert $725.00: In stock

A picture of IDR-Inspector (geiger counter) >

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 Also it has an alert feature just like Radalert 50
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 2000 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)


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