IEC Digital Geiger Counter & Rate Meter – Handheld

The IEC Digital Geiger Counter & Rate Meter (AP1884-001) is a portable, battery-operated instrument for detecting and counting beta particles, gamma radiation and high-energy alpha particles. Its internal Geiger–Müller (GM) tube and digital display make it suitable for school physics experiments, laboratory demonstrations and field studies.

Key Features

• Internal GM tube with protective grille over the thin mica window.
• Continuous counting and timed counts of 10, 60 or 100 seconds.
• Count-rate measurement in counts per second or minute.
• Maximum counting rate of 10 kHz.
• Switchable audible click for detected counts.
• Adjustable GM tube voltage from 300 to 500 V DC.
• Automatic power-down and low-battery indication.
• Optional external 12 V AC/DC power supply connection.

Specifications

• Manufacturer: IEC (Industrial Equipment & Control)
• Model: AP1884-001
• Detector: Internal Geiger–Müller tube
• Counting modes: Continuous, 10, 60 and 100 seconds
• Rate measurement: Counts per second or minute
• Maximum counting rate: 10 kHz
• Tube voltage: Adjustable 300–500 V DC
• Power: 3 × AA batteries (supplied)
• Battery operating time: Approximately 100 hours
• Dimensions: 195 × 100 × 37 mm
• Weight: 0.42 kg

Important Information

This instrument measures radiation counts and count rates for educational and comparative purposes. It is not designed to provide calibrated radiation dose measurements or determine radiation safety levels. The GM tube's mica window is fragile and must not be touched.

Download IEC Instruction Sheet