Digital Radiation Monitor

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Use the Digital Radiation Monitor to monitor alpha, beta, and gamma radiation for explorations in radiation statistics, measuring the rate of nuclear decay, and monitoring radon progeny.

The Digital Radiation Monitor consists of a Geiger-Mueller tube and a digital rate meter mounted in a small, rugged, plastic case. The unit is battery operated and can be used with or without an interface for measurement of alpha, beta, and gamma radiation. When used with an interface such as LabQuest, it can be used to study counting statistics, inverse-square relations, shielding effects, and other quantitative experiments. Without an interface, use the built-in counter and timer to measure count rates.

User Guide and Technical Info

Extended User Guide with Additional Specifications

Order Code: VR105760 Price £ ex VAT.

Specifications:

• Sensor: LND 712 (or equivalent) halogen-quenched GM tube with a mica end window, 1.5 to 2.0 mg/cm² thick. Rated at 1000 counts per minute using a Cesium-137 laboratory standard.
• Power: One 9-volt alkaline battery provides a battery life of 2000 hours at normal background radiation levels.
• Accuracy: ±10% typical, ±15% max. (mR/hr and µSv/hr modes)
• Dimensions: 150 x 80 x 30 mm (5.9″ x 3.2″ x 1.2″)
• Weight: 225 g (8 oz) with battery installed
• Energy Sensitivity: 1000 CPM/mR/hr referenced to Cs-137

• Audio Output: Chirps for each count (operational in audio mode only–can be muted)
• Temperature Range: –20°C to 50°C
• Operating Range:
• mR/hr: 0.001 to 110
• CPM: 0 to 350,000
• Total: 1 to 9,999,000 counts
• µSv/hr: 0.01 to 1100
• CPS: 1 to 3,500