VOLTCRAFT RM-400 Geiger Counter Radiation Detector Alpha Beta Gamma X-Ray with Acoustic Alarm, Software, Data Logger VC-12822170

Detect alpha, beta, gamma and X-ray radiation with a sensitivity of 80 CPM/µSv/h and a dose rate range from 0.01 to 1000 µSv/h. The VOLTCRAFT RM-400 Geiger counter provides precise measurements and immediate acoustic and visual alarms when thresholds are exceeded.

Overview

The RM-400 is a portable radiation detector built around a halogen-filled Geiger-Müller tube. It measures dose rate in µSv/h, cumulative dose in mSv, and count rates in CPM and CPS. The large backlit LCD shows readings clearly in any light, and the adjustable alarm threshold warns you of elevated radiation levels. With a data logger capacity of 32,000 data points and USB connectivity, you can record and analyse measurements on a PC using the included Windows-compatible software.

What stands out

• Detects alpha, beta, gamma and X-ray radiation
• Wide dose rate range: 0.01 – 1000 µSv/h
• High sensitivity: 80 CPM/µSv/h for Co-60
• Acoustic and visual alarm with adjustable threshold
• Data logger for 32,000 data points with USB and software
• Large backlit LCD for easy reading
• Powered by 3 AA batteries or USB

Technical details

• Detector: Halogen-filled Geiger-Müller tube
• Detected radiation types: Alpha, Beta, Gamma, X-ray
• Dose rate range: 0.01 – 1000 µSv/h
• Cumulative dose range: 0.001 – 9999 mSv
• Energy range: 40 keV – 3 MeV
• Accuracy: ±10% (for Cs-137)
• Sensitivity: 80 CPM/µSv/h (for Co-60)
• Display: Large LCD with backlight
• Alarm: Acoustic and visual, adjustable threshold
• Data logger capacity: 32,000 data points
• Connectivity: USB
• Software: Included, Windows compatible
• Power supply: 3x AA batteries or USB
• Battery life: Approx. 30 days continuous operation
• Operating temperature: -10 to +45 °C
• Operating humidity: Up to 90% RH non-condensing
• Measurement units: µSv/h, mSv, CPM, CPS, µR/h
• Response time: < 5 seconds for 1 µSv/h
• Calibration: Factory calibrated

Our verdict

The VOLTCRAFT RM-400 is a versatile and reliable Geiger counter for professional and personal radiation monitoring. Its wide detection range, data logging and alarm functions make it a solid choice for safety inspections, environmental monitoring and educational use.