Bad gas detectors
Purchased 2 gas detectors from Grus.io for $64USD. Both were "drop-shipped" from China and based on their appearance and quality aren't worth a quarter of the price. 1 detector is constantly rebooting (won't even power on properly) due to a bad cable/power supply provided and the other goes into "preheating" mode every few mins. The detectors are rated to -10C but is rebooting at -5C. Also, their page claims to have 36 reviews on Trustpilot, however, mine seems to be the first one posted. I've reached out to the company to see how the situation can be addressed. If something positive comes out of it, I'll update the review. Otherwise, I'd recommend to stay away from them. PS. As the reply from the Company states, they did reach out, and I was very delayed in the replying to them. We are communicating now, and I'll update this review again based on the outcome. Considering they've offered a full refund right away, I've increased their rating from 1 star to 3 as few will do that.
By Ziv R.
Response from Grus· Jan 13, 2026
Hi Ziv, Thank you for sharing your experience — we’re sorry to hear about the issues you encountered. We did respond to your support email on Dec 31 to follow up on the device behavior and requested a short video so we could properly diagnose the issue. That said, if troubleshooting is not your preference, we’re absolutely happy to offer a return and full refund instead. Please feel free to reply to our email or contact us at [email protected] , and let us know how you’d like to proceed. We’re still here to help get this resolved for you. — Grus Support Team