I. Recommended Core Products (Sorted by Scenario Suitability)

　　1. Elec-Tech Outdoor Power Supply 2200W (Preferred for Laboratory/Medical Use)

　　Core Advantages: Pure sine wave output (THD<3%), voltage accuracy ±2%, compliant with UL1778 standard

　　Key Parameters: 2000Wh lithium iron phosphate battery (4000 cycles), UPS uninterrupted power supply (0.02-second switching)

　　Suitable Scenarios: Portable ultrasound machines, chromatography analyzers, gene sequencing equipment, and other precision instruments

　　Safety Features: Triple protection against fire, shock, and radiation; CTB automotive-grade integrated technology

　　2. UGREEN Lithium Iron Phosphate Outdoor Power Supply (Simultaneous Power Supply for Multiple Devices)

　　Core Advantages: Pure sine wave inverter efficiency 92%, 10 simultaneous power supplies without power reduction

　　Key Parameters: 1565W continuous output, 2000Wh capacity, same lithium iron phosphate battery as BYD

　　Suitable Scenarios: Mobile office (laptop + printer + router), live streaming equipment (camera + mixing console + ...) (Monitor)

　　Features: Powerzip fast charging (1.5 hours to full charge), V-0 flame-retardant shell

　　3. OUKITEL P5000 (Long-term emergency backup)

　　Core advantages: EPS emergency power supply (10ms switching), low THD value, electromagnetic interference (EMI) filtering design

　　Key parameters: 5120Wh large capacity, 2200W pure sine wave output, 5000 cycle life

　　Suitable scenarios: Server clusters, communication base stations, emergency backup for medical monitors

　　Charging efficiency: 1800W AC fast charging (3 hours to full charge), 1000W solar charging (5 hours to full charge)

　　4. Tanbos Smart 2000 (Dedicated for industrial testing equipment)

　　Core advantages: SPWM intelligent inverter technology, output frequency 50Hz±0.2%, supports high-voltage testing equipment

　　Key parameters: 2000W continuous / 4000W peak, 25.9V/75AH large capacity, DC24V Dedicated Interface

　　Suitable Scenarios: Cable fault detectors, oscilloscopes, sensor calibration equipment

　　Certification Guarantee: EN/IEC62109-1/2 safety certification, EMC electromagnetic compatibility compliant

　　5. EPEVER NPower 1000W (Low Power Precision Equipment)

　　Core Advantages: Low-frequency pure sine wave (low THD value), dual closed-loop control of voltage and current

　　Key Parameters: 1000W continuous / 2000W peak, RS485 remote monitoring, 48V wide voltage input

　　Suitable Scenarios: Environmental monitoring instruments, water quality analyzers, wireless communication modules

　　Protection Features: Overvoltage / Overcurrent / Short Circuit triple protection, industrial-grade steel shell moisture-proof design

　　6. Zhenghao EcoFlow Delta 2 Max (Mobile Scientific Research Scenarios)

　　Core Advantages: Pure sine wave output (THD%), X-Stream fast charging technology

　　Key Parameters: 2400W continuous output, 2048Wh capacity, supports 1000W Solar Charging

　　Suitable Scenarios: Field research equipment, portable weather stations, UAV ground stations

　　II. Core Characteristics for Sensitive Electronic Equipment

　　Pure Sine Wave THD Value: Required standard < 2%. Its core function is to prevent harmonic damage to chips and capacitor components, ensuring the stable operation of precision electronic components.

　　Voltage Stability: Must be controlled within ±2%, effectively protecting the measurement accuracy of precision resistors and sensors, and preventing voltage fluctuations from affecting the accuracy of equipment data.

　　UPS Switching Time: Must meet millisecond-level switching requirements to prevent data loss due to power outages in servers, analyzers, and other equipment.

　　Electromagnetic Interference (EMI): Must comply with FCC Class B standards to avoid interference with communication equipment and wireless modules, ensuring signal transmission stability.

　　Battery Type: Lithium iron phosphate (LiFePO4) is preferred, possessing low self-discharge characteristics, no memory effect, and maintaining good performance even after long-term storage.

　　Protection Mechanism: Must be equipped with quadruple protection against overcharge, overvoltage, surge, and temperature fluctuations to prevent voltage surges from damaging circuit boards and extend equipment lifespan.

　　III. Typical Application Scenarios and Adaptation Guide

　　Medical Rescue (Portable Ventilators): We recommend the Elec-Tech 2200W and Tanbos Smart 2000 UPSs. These meet the core requirements of seamless UPS switching and low electromagnetic interference, ensuring continuous and stable operation of medical equipment and guaranteeing rescue safety.

　　Laboratory Analytical Instruments: We recommend UGREEN and EPEVER NPower UPSs. These meet the key requirements of high-precision voltage output and simultaneous power supply for multiple devices, adapting to the working requirements of precision instruments such as chromatographs and water quality analyzers.

　　Outdoor Live Streaming / Mobile Office: We recommend the Zhenghao Delta 2 Max UPS. Its core advantages are fast charging capability and lightweight design (only 35kg). It can simultaneously power multiple devices such as laptops, cameras, and mixing consoles, meeting the high-efficiency usage needs in mobile scenarios.

　　Industrial Equipment Testing: We recommend the OUKITEL P5000 UPS. This meets the key requirements of large capacity, long battery life, and EMI filtering, adapting to testing equipment such as cable fault detectors and oscilloscopes, ensuring testing accuracy in complex industrial environments.

　　IV. Selection Guidelines

　　Priority Selection Criteria:

　　* Must clearly indicate "pure sine wave" and specific THD value (lower is better).

　　* Supports UPS/EPS emergency switching function (essential core function for sensitive electronic equipment).

　　* Battery cycle life ≥ 2000 cycles (reduces long-term operating costs and improves cost-effectiveness).

　　* Power Matching Formula:

　　* Single device use: Power station continuous power ≥ device rated power × 1.2 (allows for startup margin).

　　* Multiple devices use simultaneously: Power station continuous power ≥ total power of all devices × 1.5 (avoids overload causing equipment shutdown).

　　* Avoid Pitfalls:

　　* Reject "corrected sine wave" products (THD > 15%, extremely likely to burn out precision electronic equipment).

　　* Beware of falsely labeled parameters: Request a third-party THD test report to verify actual performance.

　　* Prioritize brands with international certifications (UL/CE/FCC) to ensure product quality and safety.

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