Categories: All Sondes LoRa/LoRaWAN Probes Store All | Sondes | Probes | Nearshore Sonde $7,999.00 Field Sonde $3,999.00 Lab Sonde $3,199.00 Conductivity (K 0.1 - K 10) from $170.00 Dissolved Oxygen Probe $290.00 pH Probe $150.00 ORP Probe $190.00 Duro PT-1000 RTD $160.00 LoRa Receiver $150.00