Vzmcov 4-in-1 Portable Gas Detector (H2S, O2, CO, LEL) - New/Sealed

This lot includes one (1) Vzmcov 4-in-1 portable multi-gas detector, new and sealed in original packaging. This handheld gas monitor simultaneously detects four gases: hydrogen sulfide (H2S, 0-100 ppm), oxygen (O2, 0-30% vol), carbon monoxide (CO, 0-999 ppm), and combustible gas/LEL (0-100% LEL). Features include an LCD backlit display with real-time readings, triple alarm modes (audible sound up to 80 dB, LED light flash, and vibration), and adjustable high/low alarm setpoints. The unit comes factory calibrated and is ready to use out of the box. Built with high-strength ABS housing and anti-slip rubber grip, dust-proof and explosion-proof rated. Powered by a built-in 3.7V rechargeable lithium battery (1800 mAh) providing extended continuous operation. Compact clip-on design for easy carrying. Detection error is less than or equal to 5% F.S. with response time under 30 seconds. Includes USB charging cable. Ideal for confined space entry, petroleum, chemical, agriculture, fire prevention, vertical farming, and general industrial safety applications. Sold as-is.