印度采购需求：氨氮分析仪，氨氮计，氨传感器，数字氨氮传感器

We're looking to buy 10 units of your ammonia nitrogen sensor for shrimp farming in Latin America. Could you provide the total price for these units, including any possible bulk discounts? We're also interested in the technical specs for low-range accuracy, specifically in the 0-0.5 mg/L NH3-N range. Additionally, please share the estimated delivery time, shipping costs, warranty details, and available tech support. Information about calibration needs and maintenance tips would be greatly appreciated. Looking forward to your prompt response with the best quotation.