Inquiry (采购产品): vibration detectors Attention: Bella Per our conversation I would appreciate it if you could email the manual for the vibration transducer model 438 with analog output and also mail out your general catalog. Thank you **** Hidden Message ***** David Reed 15 Richard St St. Catharines, ON L2T2E1 CAN Company: Techroi Control Systems Phone: 905 684-5176 E-mail: techroi@sympatico.ca **** Hidden Message ***** techroi@sympatico.ca