For the purchase of four-gas detectors (limited to RAE and mPower brands) from Sheng Yi Tech & Analytics Co., Ltd., the detectors are entitled to a lifetime free annual calibration service, starting one year after shipment. This offer is retroactive, welcoming both new and old devices for free calibration.


Note:
1. Calibration is limited to oxygen, LEL, carbon monoxide, and hydrogen sulfide gas (calibration gas concentrations follow our company regulations and cannot be customized).
2. Customers are responsible for shipping costs for instrument pickup and return.
3. Calibration reports follow a standardized format and are not customized.
4. Sheng Yi Tech & Analytics Co., Ltd. reserves the right to retain, modify, suspend, and interpret the terms of this offer. Any modifications will be announced on the website without further notice.