Interested in a sensor surface with weighing capabilities to recognize the number of items

Dear Sir/Madam,

I am interested in a sensor surface with weighing capabilities to recognize the number of items and measure the weight of each item on a warehouse shelf.
I need to develop a system for tracking reagents stored on warehouse shelves. We typically purchase reagents in containers, jars, boxes, and bags ranging in size from approximately 5x5 cm to 30x30 cm. The reagents come in various quantities and types (around 50 types). As a result, we do not allocate a specific place for each reagent in the warehouse. The reagents are stored in a random order, making it difficult to track their quantity and weight. I would like to install weighing scales with intelligent sensors on the shelves to monitor my reagent stock in real time at any moment.
Note: We usually purchase different reagents in various packaging and quantities, so the sensor surface with weighing functionality should be able to determine the number and weight of the items on the shelf each time.
Requirements for the weighing system:
1. The sensor surface with weighing functionality must determine the number of reagents on the shelf and measure the weight of each one.
2. Resistance to prolonged static loads.
3. Ability to transmit data to a mobile application.
4. Moisture resistance.
5. Operating temperature range: from -20°C in winter to +30°C in summer.
6. Reagent weight range: from 0.05 kg to 10 kg.
7. The thickness of the sensor surface with scales should not exceed 5 mm.
8. Low cost.
9. Prototype sensor surface size: 50x50 cm (final dimensions may vary).
10. Procurement volume: 1,000–12,000 units per year.
What solutions can you offer?

Best regards,
Aibek B.
Astana, Kazakhstan