The portable radiation detector features a built-in Geiger–Müller sensor housed behind side ventilation openings, ensuring fast response and stable detection performance. Its single-button control design simplifies operation, making it suitable for beginners and professionals alike. With its portable size, durable housing, and clear alert modes, this Geiger counter radiation detector is an essential tool for personal protection and environmental monitoring.

Automatic Day/Night Display Mode

One-Button Power-On, Easy to Use

SISCO radiation detector is a device used to detect and measure ionizing radiation, such as alpha, beta, gamma rays, and neutrons. Radiation detectors are used in medical imaging, industrial safety, environmental monitoring, and security to measure ionizing radiation. They help ensure safe radiation levels, detect contamination, and prevent the unauthorized transport of radioactive materials. They’re also crucial in scientific research for studying radiation effects.
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| Model | SISCO-RD-HZ-550 |
| Sensor Type | Energy-compensated GM tube |
| Measurable Type | β-rays, γ-rays, X-rays |
| Energy Range | 20keV~3.0keV≤±30% (137Cs-) |
| Sensitivity | 80cpm/μSv/(Co-60) |
| Resolution | 0.01μSV/h |
| Measurement Range | 9999μSV/h |
| Real-time Error | ≤3% |
| Power Supply | 5V/USB 3.7V lithium battery/500 mAh |
| Charging Time | 1~2 hours |
| Dimensions | 187*92*60mm |
| Weight | 420g |
Q1: What is a radiation detector?
A1: A radiation detector is a device designed to detect and measure ionizing radiation, such as alpha, beta, gamma rays, and neutrons. These detectors work by sensing the interaction of radiation with matter, often producing an electrical signal that correlates with the intensity or type of radiation present. Radiation detectors come in various types, including Geiger-Müller counters, scintillation detectors, and solid-state detectors, each tailored to detect different forms of radiation or provide varying levels of sensitivity.Â
Q2: Do radiation detectors need calibration?
A2: Yes, radiation detectors need regular calibration to ensure accurate and reliable measurements. Calibration involves adjusting the detector to account for any changes in its performance over time, which can be caused by factors such as aging components, environmental conditions, or variations in detector sensitivity. Regular calibration helps maintain the accuracy of the readings and ensures that the detector provides precise data for assessing radiation levels. Calibration is typically performed using known radiation sources and may be required by regulatory standards to ensure compliance and safety.
Q3: Can radiation detectors detect non-ionizing radiation?
A3:Â Most radiation detectors are designed to detect ionizing radiation, such as alpha, beta, gamma rays, and neutrons. Non-ionizing radiation, which includes radio waves, microwaves, infrared, and visible light, requires different types of sensors. For example:
Tips: Do Geiger counters need calibration?
Yes. Geiger counters require regular calibration to maintain accurate and reliable measurements. Over time, the sensitivity of the Geiger-Müller tube and the device’s internal electronics can drift due to aging, environmental conditions, or frequent use. Calibration involves comparing the detector’s response to a certified radiation source and adjusting the instrument to match known standards.
Most manufacturers recommend calibrating the device every 12 months, though units used in industrial, laboratory, medical, or regulatory environments may require more frequent checks. Regular calibration ensures the Geiger counter continues to deliver trustworthy readings, supports compliance with safety guidelines, and helps users confidently assess radiation levels in critical applications.
Thank you for buying industrial test and measurement equipment on SISCO.com, all products sold by SISCO and the partner cover a 12 months warranty, effective from the date of receiving the products.
SISCO is responsible for providing free spare parts, and free technical support to assist the customer to repair the defective products until the problem is solved.