After-Sales Policy – Shenzhen KEHAO Information Technologies Co., Ltd.

After-Sales Service Policy

Global Technical Support for Environmental Monitoring Sensors and Telemetry Systems

KEHAO provides structured and reliable after-sales service for hydrological monitoring equipment, water quality sensors, meteorological instruments, and agricultural monitoring systems.
Our support framework ensures stable long-term operation of monitoring stations deployed in environmental observation, water resources management, and infrastructure monitoring projects.

Warranty Coverage

KEHAO provides a 12-month warranty for the main units and key components of monitoring equipment, including:

• Hydrological monitoring sensors
• Water quality monitoring instruments
• Meteorological sensors and weather stations
• Agricultural environmental monitoring devices

Within the warranty period:

• Free repair for quality issues not caused by human damage
• Replacement units provided for critical hardware failures
• Technical diagnosis and troubleshooting support

Consumable parts are not covered by warranty, including:

• pH electrodes
• Conductivity electrodes
• Dissolved oxygen membranes
• Electrolyte solutions

These components are considered normal maintenance items.

Response & Technical Support

KEHAO provides remote technical assistance for global customers and project partners.

Service response time:

• Initial response: within 12 working hours
• Technical solution: within 48 hours

Support channels include:

• Email technical support
• Remote troubleshooting and diagnostics
• Video guidance for installation and configuration

Technical documentation available:

• Installation manuals
• Commissioning guidelines
• Calibration instructions
• Operation videos

These resources help ensure proper deployment of environmental monitoring sensors and telemetry stations.

Return & Replacement Policy

DOA (Damage Upon Arrival)

If equipment is damaged during transportation:

• Free replacement will be provided
• Shipping costs covered by KEHAO
• An unboxing video is required for verification

Product Quality Issues

If the product cannot be repaired within the warranty period:

• Free replacement will be arranged
• Shipping costs will be shared by both parties

Unconditional Return

• Returns accepted within 7 days after delivery
• Products must remain unused and in original condition
• Inspection or handling fees may apply

Spare Parts & Maintenance

KEHAO provides long-term spare parts and maintenance support for monitoring equipment.

Available spare parts include:

• Sensor probes and electrodes
• Communication cables
• Batteries and power modules
• Monitoring station components

To support long-term projects:

• Minimum 5-year spare parts availability during the product lifecycle
• Optional paid maintenance and repair services

This ensures continuous operation of hydrological monitoring stations, weather stations, and environmental monitoring systems.

Logistics & Packaging

KEHAO supports international delivery for monitoring equipment and monitoring stations.

Shipping options include:

• Express delivery
• DDP shipping services
• Sea freight for large equipment orders

All products are packaged using:

• Shock-resistant protective materials
• Moisture-proof packaging
• Reinforced export cartons

KEHAO also assists customers with shipping damage claims and logistics coordination.

Our Commitment

KEHAO is committed to providing professional, responsive, and dependable after-sales support for global partners.

Our service framework is designed to support long-term environmental monitoring projects, hydrological observation systems, meteorological stations, and agricultural monitoring networks.

Download Full After-Sales Policy (PDF)