Assembled GM Tube Geiger Counter Radiation Detector Module

Assembled GM Tube Geiger Counter Nuclear Radiation Detection Module

Fully pre-soldered radiation sensing board equipped with counting tube, dual power supply options, built-in sound-light alarm, standard interrupt IO interface, compatible with universal 5V single-chip microcontroller boards, supports beta & gamma ray detection and PC offline data recording & analysis.

Unmodified Original Product Specifications

• SKU Model: ST230048124
• GM Tube Dimension: Φ10±0.5mm × 90±2mm
• Tube Electrical Index: Startup <350V, Rated 380V, Max Working 550V
• Pulse Service Life: Over 1×10⁹ pulses
• Working Temperature: -40℃ ~ 55℃
• Whole Board Size: 108 × 63 × 20 mm
• Power Mode: DC 5V / 3×1.5V / 4×1.2V battery, 12~30mA working current
• Detection Range: Gamma ray 20~120mR/h; Soft Beta ray 100~1800 counts/cm²
• Supported GM Tube Model: M4011, STS-5, SBM20, J305 (330~60V operating voltage)
• External Interface: Interrupt signal output pin for data collection
• Extra Function: Real-time sound + double light alarm, PC data logging compatible

Original Retained Core Features

• Pre-assembled finished circuit board, no secondary welding required
• Dual sound-light alarm reminds abnormal radiation dosage in real time
• Standard universal IO pin matches most mainstream single-chip hardware
• Supports replacement of multiple common GM counting tubes for upgrade
• Dual power supply adapts laboratory and field portable measurement
• Complete data transmission solution for radiation monitoring station projects
• Wide temperature range adapts indoor & outdoor detection environment
• Comes with acrylic protective cover to shield circuit from collision damage

Full Unchanged Package Contents

• 1 x Pre-Assembled Geiger Counter Main Board with GM Tube
• 1 x DC Power Cable
• 1 x Battery Holder (Batteries Not Included)
• 3 x Dupont Jumper Wires
• 4 x Fixing Nuts
• 1 x Transparent Acrylic Protective Cover
• 1 x Operation Manual

Original Usage Reminders Retained

1. 0.5~2mm dimensional tolerance exists for PCB and acrylic parts.
2. Only match 330~600V GM tube when replacing spare tubes.
3. Avoid strong electromagnetic interference near the detection tube during testing.

Strict circuit stability & radiation response test before global shipping.

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