The DM157 is a portable handheld nuclear radiation detector and personal dosimeter built around a Geiger-Muller (GM) tube sensor.
The DM157 detects X-ray, gamma and beta radiation from 0.01 to 1000 microsieverts per hour, with cumulative tracking up to 500 millisieverts.
It runs 80 CPM per microsievert per hour sensitivity off a rechargeable 2000 mAh battery, showing readings on a backlit LCD with adjustable alarm thresholds.
In Sri Lanka it is used for walk-through checks at industrial radiography sites, hospital isotope monitoring, construction and quarry baseline surveys for natural radioactivity, post-incident environmental sweeps, and safety screening at school science programs or conferences with demonstration sources.
Why Choose This Product
- ABS plastic Construction: Made of ABS plastic for durability and reliable rental use.
- 189 x 70 x 30 mm Capacity / Size: Sized for the typical event / household use case.
- Key Specifications: Geiger-Muller tube; dose rate 0.01-1000 uSv/h (up to 10 mSv/h); cumulative 0.01 uSv to 500 mSv; energy 50 keV-1.5 MeV; sensitivity 80 CPM per uSv/h (Co-60); LCD with adjustable brightness; user-adjustable dose-rate and cumulative-dose alarms; Micro USB charging.
- Dual measurement modes: Reports both real-time dose rate (uSv/h) and cumulative dose so the same handheld can be used for hot-spot surveys and longer-term personal exposure tracking.
- Wide energy window: 50 keV to 1.5 MeV energy response covers most common medical and industrial gamma sources including Cs-137 and Co-60 within +/-30 percent.
- USB rechargeable: 2000 mAh internal lithium battery recharges over a standard Micro USB cable (5V, 1A-2A), so no specialty charger or disposable cells are needed in the field.
- User-set alarms: Both dose-rate and accumulated-dose alarm thresholds can be adjusted by the user to match the radiation safety limits of the specific job.
How Can You Use This
- Event Setups: Weddings, parties, anniversaries, and corporate events that need this kind of equipment.
- Photo / Video Shoots: Decor, props, lighting accessories, or technical add-ons for photo / video productions.
- Conferences and Training: Whiteboards, podiums, audio aids, and support equipment for seminars and meetings.
- Home / Household Use: Furniture, cleaning equipment, and household add-ons for short-term home needs (visitors, parties, repairs).
- School and University Events: Equipment for sports days, drama productions, prize-givings, and exhibitions.
- Religious / Community Events: Furniture and equipment for community gatherings and religious ceremonies.
What's Included
- 1× Item
- 1× Power Cable / Charger (where applicable)
- 1× Carrying Bag / Case (where applicable)
