Detection method: diffusion type Response time: 90% response within 25 seconds Instruction accuracy: ±10ppm (if 99ppm or less), ±10% of the indicated value (if 100ppm or more) Target gas: CO Measurement range (ppm): 0 to 500 Resolution (ppm): 1 Depth (mm): 23 高度(mm):54 宽度(mm):100 连续使用时间(H):大约600 电源(V):2 AA碱性电池