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

Technical Support & After-Sales Service

Global Technical Support for Environmental Monitoring Systems and Telemetry Solutions

KEHAO provides professional technical support and after-sales services for a wide range of environmental monitoring solutions, including:

Hydrological monitoring systems – water level sensors, flow monitoring devices, rainfall monitoring equipment, and flood warning stations
Water quality monitoring solutions – multi-parameter sensors for rivers, reservoirs, irrigation systems, and environmental applications
Meteorological monitoring equipment – rain gauges, wind sensors, weather stations, and climate observation devices
Smart agriculture monitoring systems – soil condition sensors, field environment monitoring equipment, and telemetry-enabled agricultural stations

Our global support framework includes:

Technical assistance for long-term operation of deployed monitoring stations
Remote troubleshooting and IoT platform integration support
Guidance on sensor installation, calibration, maintenance, and system upgrades
Support for telemetry communication, including 4G/LoRa connectivity and solar-powered RTU configuration

KEHAO’s after-sales services support customers in environmental monitoring, water resource management, flood warning, precision agriculture, and infrastructure monitoring projects.

Through professional technical support and continuous service, KEHAO helps partners maintain reliable monitoring systems and stable real-time environmental data acquisition throughout the product lifecycle.

Warranty Coverage

KEHAO provides a 12-month warranty for the main monitoring devices and supplied hardware components of our environmental monitoring solutions, including:

Hydrological monitoring sensors and telemetry equipment
Water quality monitoring instruments
Meteorological sensors and weather stations
Smart agriculture monitoring devices

Warranty Service Includes:

During the warranty period, KEHAO provides:

Free repair services for product quality issues caused by manufacturing defects
Replacement of hardware components or units in cases of confirmed critical failures
Technical diagnosis and troubleshooting support from our engineering team

Warranty Exclusions:

The warranty does not cover consumable parts that require regular replacement due to normal usage and environmental exposure, including:

pH electrodes
Conductivity electrodes
Dissolved oxygen membranes
Electrolyte solutions

These components are considered normal maintenance items and require periodic replacement based on operating conditions and application environments.

KEHAO is committed to providing reliable monitoring equipment, professional technical support, and long-term service assistance for global environmental monitoring projects.

Global Technical Support and Response Service

KEHAO provides professional remote technical support for global customers, distributors, and project partners throughout the lifecycle of environmental monitoring systems.

Service Response Time

KEHAO follows a structured technical support process:

Initial response: Within 12 working hours
Technical analysis and proposed solution: Within 48 working hours

Support Channels

Our technical support services include:

Email-based technical assistance
Remote troubleshooting and system diagnostics
Video guidance for installation, configuration, and operation
Support for sensor, telemetry, and IoT platform-related issues

Technical Documentation and Training Resources

KEHAO provides comprehensive technical materials, including:

Installation manuals
Commissioning guidelines
Calibration instructions
User operation guides
Product training videos

These resources help customers and partners complete efficient deployment, maintenance, and operation of environmental monitoring sensors, telemetry stations, and IoT monitoring systems.

Through responsive technical support and professional service resources, KEHAO helps ensure stable operation of monitoring projects worldwide.

Return & Replacement Policy

KEHAO is committed to providing reliable environmental monitoring equipment and professional support throughout the product lifecycle. In cases involving transportation damage or confirmed product quality issues, we provide reasonable return and replacement solutions.

DOA (Dead on Arrival) – Transportation Damage

If equipment is damaged during transportation upon delivery:

KEHAO will provide replacement support after verification
Replacement arrangements and related shipping responsibilities will be handled according to the specific situation
An unboxing video or damage evidence may be required for verification

Product Quality Issues

For confirmed product quality problems within the warranty period:

KEHAO will provide repair or replacement solutions based on product conditions
Technical evaluation will be conducted by our engineering team
Shipping arrangements will be discussed and handled according to the specific case

Return Conditions

Return requests may be accepted under the following conditions:

Request submitted within 7 days after delivery
Products remain unused and in original packaging and condition
Product inspection or handling fees may apply where applicable

RMA Process

For return or replacement requests, customers should contact KEHAO technical support with:

Product model and serial number
Description of the issue
Photos or videos showing the problem

KEHAO will review the request and provide further instructions for return, repair, or replacement.

Spare Parts & Maintenance Support

KEHAO provides long-term spare parts supply and maintenance support for environmental monitoring equipment, helping customers maintain stable operation throughout the product lifecycle.

Available spare parts and service components include:

Sensor probes and replaceable sensing components
Communication cables and connection accessories
Power supply modules and related components
Monitoring station components and installation accessories

To support long-term monitoring projects, KEHAO provides:

Minimum 5-year spare parts availability during the product lifecycle
Technical guidance for component replacement and maintenance
Optional paid repair and maintenance services

These services help ensure continuous operation of hydrological monitoring stations, weather monitoring systems, telemetry equipment, and environmental monitoring networks deployed in long-term outdoor applications.

Through reliable spare parts support and technical assistance, KEHAO helps customers maintain stable data acquisition and monitoring performance over extended project periods.

Logistics & Packaging

KEHAO provides international shipping support for environmental monitoring equipment, telemetry devices, and integrated monitoring stations.

We support flexible delivery options based on project requirements, including:

Express delivery for small equipment and urgent shipments
Sea freight for large orders and monitoring station projects
DAP shipping options where available based on destination and customer requirements

To ensure safe transportation, KEHAO uses export-standard packaging methods, including:

Anti-shock protective materials
Moisture-resistant packaging
Reinforced export cartons and customized protection for sensitive equipment

Our logistics support covers products such as:

Hydrological monitoring sensors
Meteorological monitoring equipment
Water quality monitoring devices
Telemetry stations and IoT monitoring systems

KEHAO also provides assistance with logistics coordination, shipping documentation, and transportation-related issue handling to support smooth international delivery.

Our Commitment

KEHAO is committed to providing reliable technical support and long-term lifecycle services for global customers, distributors, and project partners.

Our service framework supports the stable operation of environmental monitoring projects, including hydrological monitoring systems, meteorological stations, telemetry networks, and smart agriculture monitoring solutions.

Through responsive technical assistance, spare parts support, and professional project cooperation, KEHAO helps customers maintain reliable monitoring performance and continuous environmental data acquisition throughout the entire product lifecycle.

KH-After-Sales Policy