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Monitor 4: The Ultimate Nuclear Gauge Survey Meter
Meet the Monitor 4, the top-selling survey meter for nuclear moisture and density gauge owners. This compact, versatile device is expertly designed for detecting alpha, beta, gamma, and x-ray radiation across three selectable ranges, making it an essential tool for a wide variety of applications.
Key Features & Specifications:
- Comprehensive Detection: Equipped with a halogen-quenched, uncompensated GM tube featuring a thin mica window (1.5-2.0 mg/cm² thick), the Monitor 4 is capable of detecting alpha, beta, gamma, and x-ray radiation.
- High Sensitivity & Efficiency:
- Alpha: Detects down to 2.5 MeV, with an efficiency greater than 80% at 3.6 MeV.
- Beta: Detects at 50 keV with 35% efficiency and at 150 keV with 75% efficiency.
- Gamma & X-Rays: Detects down to 10 keV through the window and a minimum of 40 keV through the detector's sidewall.
- Gamma Sensitivity: 1000 CPM/mR/hr (referenced to Cs-137).
- User-Friendly Operation:
- Operating Range: Features three distinct ranges: 0-0.5, 0-5, and 0-50 mR/hr, as well as 0-500, 0-5,000, and 0-50,000 CPM.
- Range Switch: Simple four-position switch for easy navigation between X1, X10, X100, and a battery check function.
- Reliable Accuracy: Offers dependable readings with an accuracy of ±10% of the full scale (referenced to Cs-137).
- Built for the Field:
- Power: Operates efficiently on a single 9-volt alkaline battery.
- Temperature Range: Functions reliably in extreme conditions, from -20° C to 55° C (-4° F to 131° F).
- Dimensions: Compact and portable at 5.7” x 2.8” x 1.5”.
- Weight: Lightweight design at just 6.3 oz. (without battery).
What's Included: Your purchase comes complete with a durable carrying case for protection and portability. The Monitor 4 is also CE marked and backed by a 1-year limited warranty, ensuring your investment is protected.
