Single phase prepaid electric meter Buyer and Importer

Dear Sir/Madam, This is AvrumGold from MX. I'm looking for products with the following specifications: Quantity Need:25 Pieces I have a small hotel with 18 rooms. we would like a economical yet reliable system for prepayment of power for the airconditioning system in the rooms, a perfect system would not need the meters conected by wire to any comunication system and be able to be updated via 20 key passphrase generated at the front desk, or card that gets loaded at the front desk hotel with 18 rooms. we would like a economical yet reliable system for prepayment of power for the airconditioning system in the rooms, a perfect system would not need the meters conected by wire to any comunication system and be able to be updated via 20 key passphrase generated at the front desk, or card that gets loaded at the front desk Show More