SENECT| Replacement Electrodes & Spares

SENECT GmbH & Co. KG · Germany SENECT Sensors & SPARES The complete range of SENECT water quality sensors, replacement electrodes, calibration standards, and spare parts — engineered in Germany for reliable, long-term aquaculture monitoring and control. 10+Sensor Models IP68Submersible Rated DEMade in Germany Authorised Dealer BTA is the Australian source for genuine SENECT sensors and spares. Plug & Play Every sensor connects directly to any SENECT control unit via standardised connectors. Field-Ready IP65–IP68 rated. Stainless steel wetted parts. Built for real aquaculture environments. ✓Compatible with All SENECT Control Units ✓Replaceable BNC Electrodes (pH & ORP) ✓Optical DO — No Electrolyte, No Flow Dependency ✓Inductive Conductivity — Corrosion-Free ✓Calibration Standards & Spare Caps in Stock ✓Extension Cables Available (5 m & 10 m) Sensors measure. Control units process. Actuators respond. SENECT develops and manufactures high-quality aquaculture technology in Landau, Germany. Their modular IoT system lets you build a complete farm monitoring solution — and every sensor on this page is Plug & Play compatible with all SENECT control units, from the SENECT|ONE to the AQUACULTURE|CONTROL. BTA is your Australian source for the full sensor range, replacement electrodes, calibration standards, and spare parts. Why SENECT Sensors The Difference is in the Data 🔬 Optical, Not Electrochemical The O2S dissolved oxygen sensor uses optical luminescence quenching — no electrolyte to refill, no membrane to replace, no flow dependency. Just accurate, drift-resistant readings for years, with a single cap swap when needed. 🧲 Inductive Conductivity The CON sensor uses an inductive measurement principle — corrosion-free, nearly maintenance-free, and temperature-compensated. No electrodes in contact with water means no fouling, no drift, and reliable salinity calculations in both fresh and saltwater. 🔧 Serviceable by Design pH and ORP electrodes use standard BNC connectors and can be replaced in minutes — no tools, no factory return. Calibration standards are available in 20 ml sachets. The O2S cap is a single push-fit replacement. Total cost of ownership stays low. 🛡️ Built for the Field IP68 submersible ratings on sensors, IP65 on alarm lamps, stainless steel 1.4435 / 1.4542 wetted parts, polypropylene housings, and cable lengths from 5 m to 10 m standard. Extension cables available for remote installations. 🌐 Integrated Ecosystem Every sensor connects directly to any SENECT control unit via the standardised Plug & Play system. The SENECT Control App displays live readings, triggers alarms, and drives actuators — all from your smartphone, tablet, or PC over Wi-Fi. ⚡ Intelligent Control Sensors don't just monitor — they drive automation. Oxygen readings trigger solenoid valves and oxygen generators. Temperature feeds feeding algorithms. Conductivity drives salinity calculations. Pressure sensors protect pipelines. Data becomes action. Full Product Range Sensor & Spares Matrix Art. No. Product Category Key Specs IP Cable 2100 Oxygen Sensor O2S Sensor 0–20 mg/L, optical, SS 1.4435, Ø12×94mm IP68 7.5 m 2101 O2S — Sensor Cap Spare Exchange cap, ~2 yr or >1M measurements — — 2102 O2S — SS Holder Accessory Holder + hanger bolt for O2S sensor — — 2103 O2S — Protective Hood Accessory Protective hood for O2S sensor — — 2200 pH Sensor XR1 Sensor pH 4–10, replaceable electrode, indirect CO₂ IP68/67 2+5 m 2201 pH Electrode XR1-AT Spare Replacement pH electrode, BNC connector IP68 — 2209 pH Calibration Set Spare pH 4.01 & 10.01 standards, 20 ml each — — 2300 ORP Sensor XT1 Sensor −1000 to +1000 mV, replaceable electrode IP68/67 2+5 m 2301 ORP Electrode XT1-AT Spare Replacement ORP electrode, BNC connector IP68 — 2309 ORP Calibration Standard Spare +475 mV standard, 20 ml — — 2410 Conductivity Sensor CON-2 Sensor 0–2000 µS/cm, freshwater, inductive IP68 10 m 2400 Conductivity Sensor CON-50 Sensor 0–50 mS/cm, saltwater, inductive IP68 10 m 2002 Pressure Sensor EDS 2.5 bar Sensor 0–2500 mbar, piezoresistive, SS 1.4542 IP65 5 m 3450 Extension Cable 5 m Accessory Extension cable with 2 plugs, 5 m — 5 m 3460 Extension Cable 10 m Accessory Extension cable with 2 plugs, 10 m — 10 m 3200 Alarm Lamp VIS-LED Accessory Visual LED alarm, Ø61.8×62.8mm, ABS IP65 5 m 3210 Alarm Lamp VIS-LED AK Accessory LED lamp + horn, Ø90×97mm, ABS IP65 5 m 3100 Power Switch SC24-230 Accessory 230V adapter, max 2000W, Schuko IP44 IP44 1 m 3020 Solenoid Valve Oxygen M7 Valve Normally open, brass, G1/8", 0.2–7 bar IP67 5 m 3010 Solenoid Valve Water M12 Valve Normally closed, brass, G1", 0.2–12 bar IP67 5 m 3301 Fish Feeder 5L Feeder ~5 kg capacity, 2–9mm pellet, PVC/PP IP44 5 m 3302 Hatchery Fry Feeder Feeder ~2L, powder feed ≤2mm, LED attract IP54 5 m All sensors compatible with all SENECT control units. Spare parts in stock or available on order. Sensor Deep-Dive Each Sensor Explained 🫧 Oxygen Sensor O2S — Art. 2100 Optical dissolved oxygen sensor using luminescence quenching. Range 0–20 mg/L / 0–200% saturation. Accuracy <1% FS, T90 <30s. Stainless steel 1.4435 body, IP68. The only consumable is the exchangeable sensor cap (Art. 2101, ~2 yr life). Also available: stainless steel holder (Art. 2102) and protective hood (Art. 2103). 🧪 pH Sensor XR1 — Art. 2200 Electrochemical pH sensor, range pH 4–10, accuracy <±2% FS. UW-glass body with ceramic diaphragm. BNC connector for quick electrode swaps (Art. 2201). Unique feature: when paired with temperature and alkalinity data, SENECT controllers calculate dissolved CO₂ concentration — a powerful tool for aquaculture water quality management. Calibration set Art. 2209. ⚖️ ORP Sensor XT1 — Art. 2300 Electrochemical REDOX sensor, range −1000 to +1000 mV, accuracy <±2.5% FS. Glass body with ceramic diaphragm, Pg13.5 thread. Ideal for denitrification filter control, ozone dosing verification, and water quality monitoring. Replacement electrode Art. 2301 (BNC). Calibration standard +475 mV: Art. 2309. 💧 Conductivity Sensors CON — Art. 2410 / 2400 Inductive measurement — no electrodes, no corrosion, no fouling. CON-2 (Art. 2410): 0–2000 µS/cm for freshwater. CON-50 (Art. 2400): 0–50 mS/cm for saltwater/marine. Polypropylene housing, G1½" PVC process connection, integrated temperature sensor, IP68, 10 m cable. SENECT controllers auto-calculate salinity in PSU. 📊 Pressure Sensor EDS — Art. 2002 Piezoresistive membrane sensor for gas and liquid media. Stainless steel 1.4542 wetted parts, G1/4" inner thread. Accuracy <0.5% FS. Ideal for monitoring aeration/oxygen pipelines and drum filter spray bars. Available in 2.5, 4, and 6 bar ranges. Extension cables: Art. 3450 (5 m), Art. 3460 (10 m). 🚨 Alarm Lamps VIS-LED — Art. 3200 / 3210 Long-lasting LED alarm indicators with IP65 rating for outdoor use. VIS-LED (Art. 3200): visual only, Ø62mm, −25 to +70°C. VIS-LED AK (Art. 3210): visual + acoustic horn with selectable tone and adjustable volume, Ø90mm. Both wall-mountable, 5 m cable, ~1.2W power draw. Connect to any SENECT actuator port. 🔌 Power Switch SC24-230 — Art. 3100 Switches 230V AC consumers (up to 2000W) via SENECT actuator output ports. Drive oxygen generators, pumps, and high-power equipment from any SENECT control unit. Schuko IP44 plugs, ASA housing, 1 m cables each side. Maximises AQUACULTURE|CONTROL functionality with up to 8 × 230V outputs. 🔧 Solenoid Valves — Art. 3020 / 3010 Oxygen M7 (Art. 3020): Normally open brass valve, G1/8", 0.2–7 bar. Oxygen flows during power failure — protecting your stock. Water M12 (Art. 3010): Normally closed brass valve, G1", 0.2–12 bar, up to 90°C. For auto-refill and water supply lines. Both IP67, 5 m cable, ~10W. 🐟 Fish Feeders — Art. 3301 / 3302 Fish Feeder 5L (Art. 3301): Rotor dispenser, 2–9mm pellets, ~5 kg capacity, wall-mount, IP44. Hatchery Fry Feeder (Art. 3302): For powder and fine feed (≤2mm), ~2L, moisture-sealed aperture, integrated LEDs to attract fish. Both 12V DC, <10W, 5 m cable, intelligent control via SENECT controllers with feed-to-temperature curves and oxygen-conditional feeding. At a Glance Sensor Specs Overview 6Sensor Types IP68Submersible Rating DOOptical Oxygen pH+CO₂Indirect CO₂ Calc BNCReplaceable Electrodes AllSENECT Compatible Quick Start Sensor Setup Guide 01 🔌 Plug Into Controller Connect any SENECT sensor to any SENECT control unit — auto-detect handles configuration. No dip switches, no manual setup. 02 📱 Open the App The SENECT Control App displays live readings instantly on smartphone, tablet, or PC over Wi-Fi. No cloud dependency — runs on your local network. 03 ⚙️ Set Alarms & Actuators Configure alarm thresholds and link sensors to solenoid valves, oxygen generators, pumps, or feeders. Data becomes action automatically. 04 📊 Review & Export Data All readings are logged. Export CSV data for analysis, compliance reporting, or integration with your farm management system. Data is king. Common Questions Frequently Asked Questions Q Are SENECT sensors compatible with all SENECT control units? Yes. Every sensor, actuator, and accessory on this page uses the standardised SENECT Plug & Play connector system and is compatible with all SENECT control units — the SENECT|ONE, SENECT|TWO, AQUACULTURE|CONTROL, and MONITOR|4. (Feeders are not compatible with MONITOR|4 as it lacks actuator outputs.) Q How often does the O2S oxygen sensor cap need replacing? The O2S sensor cap (Art. 2101) has a lifetime of approximately 2 years or over 1,000,000 measurements. Shelf life is over 5 years when stored dry and dark at 20°C. Replacement is a simple push-fit — no tools required. Q Can I replace pH and ORP electrodes myself? Absolutely. Both the pH XR1 and ORP XT1 use standard BNC plug connectors. Simply unscrew the old electrode, unplug it, and connect the replacement (Art. 2201 for pH, Art. 2301 for ORP). No factory return or special tools needed. Calibration standards available in 20 ml sachets. Q What's the difference between CON-2 and CON-50? CON-2 (Art. 2410) measures 0–2000 µS/cm — ideal for freshwater. CON-50 (Art. 2400) extends to 0–50 mS/cm — the best choice for saltwater / marine systems. Both use inductive measurement, are IP68 rated, and come with 10 m cable. SENECT controllers auto-calculate salinity (PSU) from the readings. Q Does the pH sensor really measure CO₂? The pH Sensor XR1 provides an indirect CO₂ measurement. SENECT controllers combine the pH reading with temperature data (from any connected SENECT sensor or entered manually) and user-input alkalinity to calculate dissolved CO₂ concentration — a highly useful calculated value for aquaculture CO₂ management. Q Are extension cables available? Yes. Standard SENECT extension cables: Art. 3450 (5 m) and Art. 3460 (10 m) with compatible plugs on both ends. Sensor cable lengths vary: 5 m (EDS, valves, alarms, feeders), 7.5 m (O2S), 10 m (CON), and 2+5 m (pH and ORP with separate transducer cable). Q "Normally open" vs "normally closed" — what's the difference? The Oxygen M7 valve is "normally open" — oxygen flows by default and only stops when energised, so your O₂ supply continues during a power outage. The Water M12 is "normally closed" — water only flows when energised, preventing flooding if power is lost. Both are deliberate safety design choices. Q Does BTA carry stock in Australia? BTA is an authorised SENECT dealer in Australia. Common sensors and spares are stocked locally; items not in stock are available on order from SENECT GmbH in Germany. Contact us for current stock availability and pricing — we'll help you spec the right monitoring system for your facility. Expert Guidance We Get It, There's A Bit Here. Figuring out the exact sensors, electrodes, and spares you need shouldn't be stressful. Give us a call, and we'll help you get exactly what you need — nothing you don't — saving you a good amount of stress and guesswork. 📞 Call Us For Help One ecosystem. Every measurement. SENECT sensors are the eyes and ears of your aquaculture facility. From optical oxygen to inductive conductivity, every sensor is built for reliability, serviceability, and instant Plug & Play integration with the complete SENECT control ecosystem. 📧 Enquire Now 📞 Call Us