Warranty Policy
Author: Xingjia & LDER
Release time: 2026-09-01 09:10:15
View number: 7
1. Coverage Period
| Part | Coverage | Notes |
|---|---|---|
| Transmitter and receiver main units (PCB and RF module) | 12 months | Counted from delivery date |
| Li-ion battery, charger, cables, keypad membrane | 6 months | Consumables - material and workmanship defects only |
| Antenna, housing, belt clip and other cosmetic parts | 3 months | Excludes wear and scratches |
| Replacement parts fitted during repair | Remaining warranty or 3 months, whichever is longer | The original warranty period is not restarted by a repair |
Long-term partners can request extension to 18 or 24 months, subject to the commercial agreement.
2. What Is Covered
Under normal use, functional failure caused by material or manufacturing defects is repaired or replaced free of charge. This includes: unresponsive or failed keys, signal drop-out or significant range loss, abnormal relay output, emergency stop failure, charging or power circuit faults, and water ingress through failed sealing (excluding deliberate immersion).
3. What Is Not Covered
- Coverage expired, or no proof of purchase / serial number;
- Installation or wiring contrary to the manual, or modification and commissioning by unqualified personnel;
- Water immersion, dropping, crushing, excessive heat, lightning, overvoltage or incorrect supply connection;
- Unauthorised opening, non-genuine parts, self-reflashed firmware or third-party repair;
- Faults from incompatible third-party equipment (for example a receiver mismatched with the VFD or PLC interface);
- Normal wear, natural battery degradation, cosmetic scratches, and force majeure such as war or natural disaster.
4. How to Claim
- Email chang571@163.com or submit an RMA in your account with the model, serial number, fault description and photos or video.
- Our engineers carry out remote diagnosis - most issues are identified within 24 hours, with phone or video guidance where helpful.
- If a return is required we issue an RMA number and return address.
- Inspection takes 3-5 business days after arrival. Covered faults are handled free of charge. For anything outside coverage we send an inspection report and repair quote - work starts only on your approval, otherwise the unit is returned as received.
5. Freight on Warranty Claims
- Within warranty - each side pays its own outbound freight (you pay to send it in, we pay to send it back).
- Out of warranty or user damage - the customer bears both legs of freight and the repair cost.
6. Support and Spare Parts
- Lifetime free technical consulting on selection, pairing, wiring and troubleshooting;
- Spare parts guaranteed for 5 years after a model is discontinued, with equivalent alternatives offered beyond that;
- Wiring diagrams, communication protocols, CE / FCC certificates and shipping documents such as UN38.3 and MSDS available on request.
Contact
Email: chang571@163.com Business hours: Monday - Saturday, 09:00 - 18:00 (GMT+8)