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Item number: 300241
Delivery time: 2-3 working days
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Scope of delivery
The SHT 241 plug-in water detector is a simple and reliable solution for monitoring water levels in pump sumps, drainage shafts, cisterns, and similar areas. It operates purely acoustically: As soon as the mini float switch detects a certain water level, a loud alarm sounds and the LED flashes red.
If the water level falls below the alarm level again, the alarm automatically stops and the LED lights up green continuously â without any manual reset.
The mini float switch works reliably from a minimum water level of 4 cm.
Commissioning is extremely simple:
The socket device is plugged into a free socket, the mini float switch is attached to the desired location with a mounting bracket (optional, item no. 300787 or 300320) - done.
Typical locations are:
Pump sumps đ§±
Drainage shafts đ§ș
Cisterns đ§
Thanks to the integrated signal generator, the alarm sounds directly from the device â loud enough to be heard even through doors.
đ Plug in & go â plug-and-play without complex cabling
đą Loud warning tone (approx. 85 dB) â clearly audible, even through walls
đ Automatic reset â no manual operation required
đ Sensor cable extendable up to 50 meters (max. 2 Ă 0.14 mmÂČ LIYY)
đĄïž Robust against dirty water, heating oil, diesel, vegetable oil, lubricating oil and other non-conductive liquids
The SHT 241 with mini float switch is particularly suitable for use in areas with dirty or non-conductive water â e.g., in basements with heating oil or diesel storage, pump sumps, drainage shafts, and cisterns.
For applications with only occasional water contact or soil moisture, we recommend the SHT 240 with fork sensor.
The included sensor cable is sufficient in many cases. However, if the sensor needs to be mounted further away from the device, the cable can be extended up to 50 meters:
The factory-installed sensor or switch cable can be extended up to 50 m if required. A thin control cable with a cross-section of max. 2 Ă 0.14 mmÂČ (LIYY type) must be used.
đĄ Important: Larger cross-sections increase the cable's electrical capacitance. This can lead to false alarms or malfunctions â therefore, only thin control cables may be used!
The LIYY control cables are only temporarily waterproof and according to the manufacturer:
â flame-retardant , self-extinguishing , low-adhesion
â largely resistant to oils, greases, coolants and lubricants
Not suitable for permanent water contact or outdoor use without protection .
The cables must never be laid parallel to 230 V cables to avoid interference and safety risks .
To attach the mini float switch, we recommend ordering the mounting bracket (item no. 300787) at the same time.
Alternatively, the dirt trap (item 300320) is particularly suitable for outdoor use. It is supplied with a mounting bracket and protects the mini float switch from blockages caused by leaves, small twigs or small animals in the outdoor water:
WEEE NO.: DE91394868
| Operating voltage | 230V AC/50-60Hz |
|---|---|
| Functional area | -15°C/+40°C |
| Dimensions(WxWxD) | |
| Power consumption | approx. 3 W |
| Line | 2.5m | 2Ă0.14mm2 | white |
| Sound pressure level | 90 dB (10 cm distance) |
Scope of delivery
The SHT 241 plug-in water detector is a simple and reliable solution for monitoring water levels in pump sumps, drainage shafts, cisterns, and similar areas. It operates purely acoustically: As soon as the mini float switch detects a certain water level, a loud alarm sounds and the LED flashes red.
If the water level falls below the alarm level again, the alarm automatically stops and the LED lights up green continuously â without any manual reset.
The mini float switch works reliably from a minimum water level of 4 cm.
Commissioning is extremely simple:
The socket device is plugged into a free socket, the mini float switch is attached to the desired location with a mounting bracket (optional, item no. 300787 or 300320) - done.
Typical locations are:
Pump sumps đ§±
Drainage shafts đ§ș
Cisterns đ§
Thanks to the integrated signal generator, the alarm sounds directly from the device â loud enough to be heard even through doors.
đ Plug in & go â plug-and-play without complex cabling
đą Loud warning tone (approx. 85 dB) â clearly audible, even through walls
đ Automatic reset â no manual operation required
đ Sensor cable extendable up to 50 meters (max. 2 Ă 0.14 mmÂČ LIYY)
đĄïž Robust against dirty water, heating oil, diesel, vegetable oil, lubricating oil and other non-conductive liquids
The SHT 241 with mini float switch is particularly suitable for use in areas with dirty or non-conductive water â e.g., in basements with heating oil or diesel storage, pump sumps, drainage shafts, and cisterns.
For applications with only occasional water contact or soil moisture, we recommend the SHT 240 with fork sensor.
The included sensor cable is sufficient in many cases. However, if the sensor needs to be mounted further away from the device, the cable can be extended up to 50 meters:
The factory-installed sensor or switch cable can be extended up to 50 m if required. A thin control cable with a cross-section of max. 2 Ă 0.14 mmÂČ (LIYY type) must be used.
đĄ Important: Larger cross-sections increase the cable's electrical capacitance. This can lead to false alarms or malfunctions â therefore, only thin control cables may be used!
The LIYY control cables are only temporarily waterproof and according to the manufacturer:
â flame-retardant , self-extinguishing , low-adhesion
â largely resistant to oils, greases, coolants and lubricants
Not suitable for permanent water contact or outdoor use without protection .
The cables must never be laid parallel to 230 V cables to avoid interference and safety risks .
To attach the mini float switch, we recommend ordering the mounting bracket (item no. 300787) at the same time.
Alternatively, the dirt trap (item 300320) is particularly suitable for outdoor use. It is supplied with a mounting bracket and protects the mini float switch from blockages caused by leaves, small twigs or small animals in the outdoor water:
WEEE NO.: DE91394868
| Operating voltage | 230V AC/50-60Hz |
|---|---|
| Functional area | -15°C/+40°C |
| Dimensions(WxWxD) | |
| Power consumption | approx. 3 W |
| Line | 2.5m | 2Ă0.14mm2 | white |
| Sound pressure level | 90 dB (10 cm distance) |
