18h standby time upgrade extension: a full charge can long-term work, greatly improving efficiency Quick response, no need to preheat and start measurement: can measure various gases, stable performance, accurate measurement results Portable combustible gas leak detector: accurate measurement, fast detection, wide application Wide range of applications: widely used in petroleum and petrochemical, natural gas, gas pipelines, kitchen gas, catering and hotels and other industries sensor: the leak detector element uses high-quality gas sensors, with good sensitivity and excellent repeatability Colour:As Shown Material:ABS Due to different batches, there may be differences in product appearance and printed text, which not affect use Package Contents: 1 set * combustible gas leak detector Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.