The PDM-820AV Hot 0731-23354999 PDM-820AV instrument can be widely applied to energy management systems for distribution automation, residential electricity monitoring, the sets PDM-820AV equipment switchgear occasions, with easy installation, wiring is simple, easy to maintain, a small amount of engineering, field-the PDM-820AV programmed input parameters can complete networking with industry PLC, industrial computer communications software. PDM-820AV (LEADER Electric) specializing in the production of the number of single-phase ammeter, three-phase digital ammeter the PDM-820AV (Hunan Leader) specializing in the production of single-phase digital voltmeter, three-phase digital voltmeter PDM-820AV (Leader appliances) specializing in the production of multi-functional power meter, power monitoring instrument PDM-820AV (Hunan Lida) specializing in the production of active power meter reactive power meter PDM-820AV instrument can be widely applied to the energy management system for distribution automation, residential electricity monitoring, sets the PDM-820AV (Hunan 利达) instrument shape: 96 * 96; opening: 92 * 92 PDM-820AV LEADER Electric instrument shape: 120 * 120; hole: 112 * 112 PDM-820AV (Hunan Leader) instrument shape: 80 * 80; instrument shape: 72 * 72 hole: 76 * 76 PDM-820AV (LEADER Electric); hole: 68 * 68 PDM-820AV (Hunan 利达) instrument shape: 48 * 48; opening: 45 * 45 PDM-820AV LEADER Electric instrument shape: 96 * 48; opening: 92 * 45 PDM-820AV (Hunan Lida) other requirements can be customized, welcome to buy PDM-820AV (Lee Electric Appliances) network of direct sales, reduce the cost of sales, more favorable prices; the PDM-820AV (Hunan Lida) can be equipped with RS485 communication interface PDM-820AV (LEADER Electric) instrument with analogue sent the PDM-820AV (Hunan Lida instrument) instrument can be equipped with relay alarm PDM-820AV LEADER Electric meter can be equipped with digital input output the PDM-820AV (Hunan Lida) optional can be any combination of the above instrument function and the opening of the company's instrument of PDM-820AV according to user request custom; the PDM-820AV instructions, wiring diagrams, and technical issues such as free service hotline: PDM-820AV Http / / www.hnlida.com