product image
View Image
View Image
View Image
View Image
View Image

Monitor MC1K Radiation Detector

Handheld Energy‑Compensated Gamma & X‑Ray Survey Meter

The MC1K is an ergonomic handheld radiation survey meter equipped with a built‑in energy‑compensated Geiger‑Mueller (GM) detector for accurate measurement of gamma and X‑ray radiation. Designed for professional radiation monitoring applications, it provides reliable dose‑rate detection across a broad operating range.

Energy‑Compensated Detection with Linear Response

The MC1K detects gamma and X‑ray radiation up to 1000 mR/hr across four selectable measurement ranges. Its energy‑compensated GM detector delivers a more linear response to gamma and X‑ray radiation across the full range, improving measurement accuracy and consistency compared to non‑compensated detectors.

Clear Audible & Visual Feedback

For immediate situational awareness, the MC1K features an audible beeper that sounds with each detected event and a flashing count indicator light that provides clear visual confirmation of radiation activity during surveys.

Ergonomic, Field‑Ready Design

Built for comfortable handheld operation, the MC1K’s ergonomic design supports extended use in both facility and field environments, making it well suited for radiation safety surveys, compliance monitoring, and general gamma and X‑ray detection tasks.

Applications & Uses

Expanded Range up to 1000 mR/hr, Linear Response needs with Energy Compensation, Checking accelerator & x-ray shielding for leakage, Checking industrial gauges; such as moisture, density, or level gauges containing Cesium-137, Locating lost sources, Personal protection, General surveying

Analog Radiation Detector Comparison

Specifications

Specifications

Detector

Energy compensated halogen-quenched GM tube.

Operating Range

X1 position 0 – 1 mR/hr or 0 – 0.01 mSv/hr
X10 position 1 – 10 mR/hr or 0 – 0.1 mSv/hr
X100 position 5 – 100 mR/hr or 0 – 1 mSv/hr
X1000 position 50 – 1000 mR/hr or 0 – 10 mSv/hr

Mc1k Meter face

Range Switch

X1, X10, X100, X1000.

MC1K Energy Sensitivity

Detects gamma and x-rays down to 40 keV. Response is flat from 40 keV up. Normal background, approximately 4 CPM.

MC1K Energy Response

Accuracy

Reference to Cs137
Typically ±15% from factory, ±10% with NIST Source Calibration NIST Calibration Additional

Anti-Saturation

Meter will hold at full scale in fields as high as 100 times the maximum reading.

Audio Indicator

Internally mounted beeper (can be turned off for silent operation).

Outputs

3.5 mm jack with pulse out.

Power Requirements

9-volt alkaline battery (included). Approx. 2,000 hrs at normal background radiation levels.

Temperature Range

-10° to +50°C (14° to 122°F)

Humidity

10% to 70% Non-Condensing.

Weight

217 g (7.7 oz)

Size

209 x 71 x 50 mm (8.2 x 2.8 x 1.9 in.)

Includes

Carrying Case

Options

Observer Serial Software, NIST Calibration

Limited Warranty

1 year limited warranty

Included with MC1K

Radiation Alert® Carrying Cases

Radiation Alert® Carrying Cases





What Our Clients Say

“

Ron Ulbrich, Geiger Counter Pro

“The Radiation Alert Ranger® is a great value for those looking for a modern Geiger counter. I found that is simple to use yet includes many advanced functions if and when you want them without obstructing the simplicity…”

“

Judson Kenoyer, CHP, CIH

“I have used the Monitor 4 in courses that I teach radiation safety for close to 8 years. The students love it and affectionately call it the “Batman unit” because of its use in the movie The Dark Knight Rises. It is light-weight, sensitive, and quite often out performs some of the more expensive units from other companies that we use in a lab exercise…”

“

Neil Breslow, NDT Supply

“NDT Supply has been working with SE International since we started business in 2000. We have found them to be easy to work with, and a very reliable and responsive supplier. Questions and issues are always handled promptly and with a smile…”