1 Hector = 2.47 Archers The range for a single device is 1 hectare. The BRS-1 is meant to sit stationary under the surface of the water, five meters from the edge of the pond connected by a cord to a case that is located pond side which houses a computer that records the data and a battery that powers the system. MSRP $5,000 per device. A $25 per device refundable downpayment will be charged at checkout. A Minnowtech representative will contact you to confirm your purchase(s) before the remaining balance of $4,975 per device is charged.