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Wireless sensor with 4-20mA/0-5VDC input, 433 MHz RF transmission, 1200m wireless range, low power consumption, and long battery life (1-2 years). Programmable transmission interval and unique sensor ID.

Accurate sound level meter (30-130dB) with ±3dB precision, 31.5Hz-8kHz frequency response, RS485/RS232 output, low power consumption, and durable ABS & aluminum alloy construction for versatile use.