Inquiry (采购产品): SafeTNet 410 SafeTNet 410 - Part No. 73-0004 Quantity of 1. FX-SMT Hydrogen Sulfide Transmitter - Part No. 67-0024-02 Quantity of 4. Calibration Kit - Part No. 81-6412-01 Quantity of 1. Additional question is the calibration kit a one-time use? If so please recommend frequency of calibration check. **** Hidden Message ***** scott fulton 94015 USA Company: Manco Controls Phone: 4086409735 E-mail: scott@mancocontrols.com **** Hidden Message ***** scott@mancocontrols.com
