Digital Radiation Monitor

Recommended for College and High School. Interface and software sold separately.

Product in use image for Digital Radiation Monitor

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.

Description

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.

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

Download the user manual for full specifications Download the extended user manual for additional specifications

Experiments and Lab Ideas

Select a lab book to see a list of experiments and more information.

Nuclear Radiation with Vernier (6)
Includes student instructions, teacher tips, safety information, and sample data.
Go to Book Page
Advanced Chemistry with Vernier (3)
Includes student instructions, teacher tips, safety information, and sample data.
Go to Book Page
Investigating Chemistry through Inquiry (1)
Includes student instructions, teacher tips, safety information, and sample data.
Go to Book Page
- 25 Nuclear Radiation

Lab Ideas and Innovative Uses

What’s Included

Vernier Digital Radiation Monitor
Data-collection interface cable
User manual

Sensor Requirements

The Digital Radiation Monitor requires a compatible interface and software to collect data. Interface and software sold separately. Getting started with probeware »