Active Water Sensor SHT 8824 "Controlled Constant Current Sink"

SHT 8824 Active Water Sensor Constant Current Sink

The king of active water sensors. When dry, it draws exactly 4 mA; when water is detected, it immediately rises to 20 mA – precisely according to the industrial standard current loop. This allows it to interface directly with any 2‑wire input: PLC, BMS, SCADA, WAGO, Beckhoff, Siemens, Loxone (with current module), and any modern building or industrial automation system. Best of all, it even detects simple hardware‑store distilled water according to VDE 0510‑5 – where most other sensors fail.

Built with Schabus’ uncompromising quality: two V4A stainless‑steel contacts, fully encapsulated in Wepuran, walk‑on safe, impact‑resistant, aluminum‑reinforced mounting hole, and a 4 m LIYY cable (extendable up to 20 m). Its active electronics make it the most sensitive water sensor in the range – it only fails with absolutely ion‑free ultrapure water.

The SHT 8824 is the favorite of system engineers and industrial integrators who require clear, standardized current signals and won’t accept compromises. One sensor – one standard – zero discussion.

The SHT 8824 at a glance:

• True 4–20 mA signal: Dry = 4 mA → Wet = 20 mA.
• Detects hardware‑store distilled water: Maximum sensitivity.
• 2 V4A stainless‑steel contacts: Permanently corrosion‑free.
• Encapsulated with Wepuran: Impact‑resistant, walk‑on safe, long‑lasting.
• Aluminum‑reinforced mounting hole: Secure, rock‑solid installation.
• 4 m LIYY 2×0.14 mm²: Extendable up to 20 m.
• Perfect for: PLC, BMS, SCADA, WAGO, Beckhoff, Industry 4.0.
• Made in Germany: Genuine Schabus industrial quality.

Ideal for demanding applications

• Data centers & server rooms
• Industrial & production facilities
• Building management & SCADA systems
• Cooling water & air‑conditioning systems
• Pharmaceutical & food production
• Everywhere the 4–20 mA standard is used

For primarily dry environments only (occasional water presence). Continuous moisture may lead to electrolysis.

A sensor that simply works – fully compliant with the world’s most important industrial standard.

Scope of delivery

• SHT 8824 active water sensor switching principle “controlled constant current sink”
• Mounting materials (1 screw, 1 wall plug)
• Operating manual