Products
GDI Solutions provide the best technology and services in environmental and safety measurements.

*BELL : Better, Easy, Loud, Light
GDI Solution's gas detector offers enhanced ease, convenience, and portability compared to existing products while maintaining a loud sound.
GDI SOLUTION BELLMINI Single-gas Detector
GDI Solution BELLMINI is a portable gas detector that protects users' safety by running High-brightness LEDs, Buzzers, and vibrating alarms when exposed to oxygen deficiency or toxic gases.
In BELLMINI, there is an option to select one of 16 sensors, including O2, CO, H2S, H2, NH3, Cl2, SO2, and PH3 sensors. A wider and clearer LCD Display (1.6") shows measured value accurately in real time. And thanks to the backlighting of the screen, it remains easily visible even in dimly lit environments or complete darkness. This features ensures you can comfortably use the screen at night or in low-light conditions without any difficulty, enhancing its overall usability.
The low-power designed BELLMINI provides over 2 years of operation without battery replacement. And it cost-effectively guarantees durability and reliability.
For the BELLMINI user's or administrator's convenience, the BELLCONNECT App allows them to change its configuration, perform calibration, or handily manage stored data.
The standard built-in NFC and BLE communication in BELLMINI make wireless connections between detectors and portable devices quicker and easier.
The measured data in BELLMINI is transmitted to the Cloud in real time, and the administrator can monitor the value and check risks in advance by accessing the web.(To updated later)
Features and Benefits
- Wider display, easier handling, and wireless connection (NFC and BLE)
- Fast sensor response time
- Automated Self-Test
- High-performance visual(LED), audible(100dB@10cm), vibrating Alarms
- Data centralization and convenience features through BELLCONNECT™ App
- Use over two years without any battery replacement based on low-energy design
- High level of waterproof and dustproof IP68
- Intrinsic safety type and reliable international certifications
- Data share and monitoring via Cloud service




BELL MINI Specifications
Category | Description |
---|---|
Size | 66 x 69 x 24 mm(w/o clip), 66 x 69 x 41 mm(w clip) / 2.59 x 2.71 x 0.94in(w/o clip), 2.59 x 2.71 x 1.61in(w clip) |
Weight | 105g(w/Belt Clip) (3.70 oz) |
Humidity | 5%~95% RH (non-condensing) |
Display | FSTN LCD Display (1.6inch) |
Ingress Protection | IP68 |
Alarms | Visual(LEDs), Vibrating Alarms, Audible Alarm(Buzzer; 100dB@10cm): Low, High, TWA, STEL |
User Options |
Adjustable alarm setpoints, Alarm Latching On/Off
Adjustment of calibration and bump test interval Zero and gas calibration, DAta download, FW update |
Self-Test | Breakdown of sensor and circuitry, Battery |
Battery | Lithium Battery size 2/3 AA 3.6V: 24months (TBC) |
Wireless Connection |
Bluetooth Low Energy(BLE)-BELLCONNECT™ App or Cloud connection
Near Field Communication(NFC)-Easy close-range connection |
Data Logging | Up to 200 alarm events, 5,000 data logs |
Approvals |
ATEX: EX II 1G Ex ia IIC T4 Ga
KCs: EX ia IIC T4 IECEx: Ex ia IIC T4 Ga PESO (India) INMETRO (Brazil) |
Warranty | 2 years(Please refer to the Sensor data) |
Sensor Specifications
Gas | Measuring Range | Resolution | Temperature |
---|---|---|---|
O2 | 0-30%Vol | 0.1%Vol | -30℃ to 50℃ |
O2 lead free | 0-30%Vol | 0.1%Vol | -40℃ to 60℃ |
CO | 0-1000 ppm | 1 ppm | -40℃ to 60℃ |
CO-H | 0-500 ppm | 1 ppm | -30℃ to 50℃ |
CO-E | 0-2000 ppm | 1 ppm | -40℃ to 60℃ |
H2S | 0-100 ppm | 0.1 ppm | -30℃ to 50℃ |
H2 | 0-1000 ppm | 1 ppm | -30℃ to 50℃ |
SO2 | 0-20 ppm | 0.1 ppm | -30℃ to 50℃ |
Cl2 | 0-50 ppm | 0.1 ppm | -20℃ to 50℃ |
HCl | 0-15 ppm | 0.1 ppm | -30℃ to 50℃ |
HCN | 0-100 ppm | 0.1 ppm | -30℃ to 50℃ |
PH3 | 0-20 ppm | 0.1 ppm | -30℃ to 50℃ |
ETO | 0-100 ppm | 0.1 ppm | -20℃ to 50℃ |
O3 | 0-5 ppm | 0.01 ppm | -20℃ to 50℃ |
NO | 0-250 ppm | 1 ppm | -30℃ to 50℃ |
NO2 | 0-30 ppm | 0.1 ppm | -30℃ to 50℃ |
NH3 | 0-100 ppm | 1 ppm | -40℃ to 50℃ |
NH3-E | 0-1000 ppm | 1 ppm | -40℃ to 50℃ |