Active Water Sensor SHT 8815 "Unipolar Resistance"
€57.98
SHT 8815 Active Water Sensor – Unipolar Resistance for Digital Inputs
The perfect sensor for anyone using a digital input with an internal pull-up or pull-down resistor. As soon as water contacts the two V4A stainless steel electrodes, the resistance drops from several megaohms to just a few hundred ohms – and your digital input immediately switches reliably. Whether it's Loxone, WAGO, Siemens LOGO!, KNX-BMS, Home Assistant with pull-up, or any PLC – the SHT 8815 directly communicates with every modern control system.
Typical Schabus quality: walk-on safe, impact-resistant, aluminum-reinforced mounting hole, fully encapsulated with Wepuran, and equipped with a 4 m LIYY cable (extendable up to 20 m). Thanks to active electronics, it is extremely sensitive – detecting even very weakly conductive water (except for pure distilled water).
The SHT 8815 is the favorite of smart home and building automation professionals who want to avoid additional relays or adapters. Simply connect it – done. Your system instantly knows: “Water detected!”
The SHT 8815 at a glance:
- Unipolar resistance: When water is present → resistance drops to a few hundred ohms.
- 2 V4A stainless steel contacts: Maximum corrosion resistance.
- Encapsulated with Wepuran: Shockproof, walk-on safe, durable.
- Aluminum-reinforced mounting hole: Secure floor installation.
- 4 m LIYY 2×0.14 mm²: Extendable up to 20 m maximum.
- Perfect for pull-up/pull-down inputs: Loxone, WAGO, KNX, PLC, Home Assistant.
- Extremely sensitive: Responds even to weakly conductive water.
- Made in Germany: Genuine Schabus quality.
Ideal for modern control systems
- Loxone, WAGO, Beckhoff, Siemens LOGO!
- KNX-BMS & building management systems
- Home Assistant, openHAB, ioBroker (with pull-up)
- PLCs & industrial controllers with digital inputs
- Data centers & technical rooms
Important: Not suitable for classic Schabus water detectors (SHT 5000/5001) – use passive sensors for those.
Once mounted and connected to the digital input, your system instantly detects water – no intermediate devices needed.
Scope of delivery
- SHT 8815 active water sensor switching principle "unipolar resistance"
- Mounting materials (1 screw, 1 wall plug)
- Operating manual
Active Water Sensor SHT 8815 (unipolar resistance)
Technical Data
- Operating voltage: 12–40 V DC
- Operating range: −15°C to +50°C
- Protection class: IP 68
- Dimensions (W×H×D): 10 × 12 × 34 mm
- Power consumption: 4 mA
- Operating principle: active
- Cable: 2 m | 2×0.14 mm² | white
Manufacturer information:
Electrical engineering Schabus GmbH & Co. KG
Baierbacher Straße 150
83071 Stephanskirchen
Germany
Telephone: +49 80 36 / 674 979 – 0
Email: info@elektrotechnik-schabus.de
Responsible person:
Didactum® Security GmbH
Marsweg 17
48163 Münster
Deutschland
Fon:
(+49) 250 19 71 63 54 / (+49) 171 33 11 577
Email: info@didactum-security.de
