Parameter protection P001 / P000 close / open function is on: Press (ON / OFF) key to run any key other than the proof pressure switch, the screen will show "----", the pressure switch, then you need to enter the password to set up The lower limit and other parameters. Protection engineers set parameters are not modified 3 Pulse Test 1KV voltage fast transient changes, test time of 30 minutes, the electronic pressure switch normal use. Pressure Switch | Tour En | PNPNPN pressure switch provided by the Beijing Amusement TU Technology Limited. Pressure Switch | Tour En | PNPNPN pressure switch is Beijing Tour En Technology Co., Ltd. (www.bjyouen.com) (www.bjyouen.com) this year introduced a new upgrade, the above picture is for reference only, please call or pictures on this page contact telephone number, to obtain the latest information, contact: Ms Fung.