18-ES Electrode Delmhorst Categories Environment , Moisture Meters Brochure Send Enquiry Has a 17" steel shaft. 3 1/4" penetration Ideal for timber, poles, and ties. Back Our Related Products Campbell Scientific EC150 CO2/H2O Open-Path Gas Analyzer Learn More Merlin HM9-WS13 Learn More Campbell Scientific CR850 Measurement and Control Datalogger with Keyboard Learn More Spectrum Technologies WatchDog A-Series PC Cable Learn More