HORIBA PA1000 Environmental Radiation Monitor

Every day, wherever we go, we are exposed to minute amounts of environmental radiation. This environmental radiation is emitted continuously, day and night, from various objects and substances in the natural world and our living environment. Most environmental radiation consists of three types: alpha rays (α), beta rays (β) and gamma rays (γ).  HORIBA's PA-1000 'Radi' environmental radiation monitor makes it easy for non-specialists to measure even minute levels of gamma rays.

Features:
Easy measurement by Anyone, Anytime, Anywhere
Designed with plant-based plastic material helping to reduce petroleum consumption
High performance detection with a CsI (Tl) scintillator
The Radi can measure radiation levels ranging from normal natural radiation to levels 100 to 200 times that intensity. Even non-specialists will find it easy to measure radiation of 0.001 - 9.999 µSv/h.
Splash-resistant construction
The Radi can be used with confidence even if there are water droplets on the surface. (JIS water resistance protection grade IPX4)
Compact and lightweight (175 g / 6.2 oz)
Uses two AA batteries.
Battery life 50 hours or more (when manganese dry cell batteries are used)

Specification
Detection method: Scintillation
Type of radiation measured: Gamma rays (γ)
Sensitivity : Min. 1000 counts per minute (1000 cpm) for 1 µSv/h
Relative error of indication: ±10%
Indicator value variation: Max. 0.1 coefficient of variation
Energy range: More than 150 keV
Energy properties: 0.5 - 3* (150 keV - 1250 keV)
Effective measurement range and display: 0.001 - 9.999 µSv/h
4-digit digital display (count value converted into µSv/h)
Sampling time: 60 seconds
Display interval: 60-second integrated value (moving average) displayed every 10 seconds
External dimensions: 68 (W) × 28 (D) × 121 (H) mm
[ Inch size : 2.7 (W) × 1.1 (D) × 4.8 (H) ]
Weight (without batteries): Max. 175 g (6.2 oz)
Accessories: Instruction manual, two AA dry cell batteries, neck strap