SISCO dual-point level float switch is a stainless-steel liquid-level sensor designed for precise water-level monitoring. This vertical float switch incorporates a magnetic reed switching mechanism inside a non-magnetic stem, activated by the magnetic float rising or falling with the liquid level.

Dual Point Liquid Level Control

Simple Wiring and On-site Adaptability
SISCO dual-point level float switch serves water storage tanks, pressure vessels, chemical processing equipment, boilers, cooling towers, condensate collection systems, fuel storage tanks, hydraulic reservoirs, wastewater treatment facilities, and industrial process control systems requiring reliable liquid level monitoring and pump automation.
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| Model | SISCO-LS-DP |
| Parameter | Specification |
| Material | 304 Stainless Steel (body), 316L Stainless Steel (retaining clips) |
| Stem Diameter | 8mm |
| Float Diameter | 28mm |
| Retaining Clip Spacing | 38mm (adjustable) |
| Switching Voltage | 0 ~ 220V AC / 200V DC |
| Contact Rating | 50W |
| Switching Current | 0.5A (resistive load) |
| Breakdown Voltage | 450Vds-Min |
| Breakdown Current | 1.5Adc-Min |
| Resistance Value | 0.1Ω-Min |
| Operating Temperature | -40°C ~ 125°C |
| Media Specific Gravity | > 0.7 g/cm3 |
| Operating Pressure | > 16kg |
| Cable | High-temperature PTFE, 40cm length, 4 wires (2 red, 2 black) |
| Mounting Thread | M10 x 1.5 (top mount) |
| Applicable Capacity | 1L ~ 100L (multiple stem lengths available) |

| Tank Capacity | L1 | L2Â | L3Â |
| 1L | 10mm | 80mm | 120mm |
| 2L | 20mm | 120mm | 160mm |
| 3L | 20mm | 180mm | 220mm |
| 4L | 20mm | 200mm | 240mm |
| 8L | 20mm | 215mm | 255mm |
| 10L | 30mm | 235mm | 275mm |
| 15L | 50mm | 390mm | 430mm |
| 20L | 30mm | 340mm | 380mm |
| 25L | 50mm | 430mm | 470mm |
| 30L | 50mm | 360mm | 400mm |
| 50L | 50mm | 440mm | 480mm |
| 60L | 50mm | 535mm | 575mm |
| 80L | 50mm | 625mm | 665mm |
| 100L | 100mm | 720mm | 760mm |

Q1: How do I switch this stainless steel float switch from fill mode to drain mode?
A1: To change the liquid level float switch from fill to drain operation, use pliers to remove the lower retaining clip, take off the float, flip it 180° so the marked point faces downward, then slide it back onto the stem and reinstall the clip. Both float points must be inverted following the same procedure to ensure proper dual-point level float switch functionality.
Q2: What liquid media can this vertical liquid level sensor handle?
A2: This magnetic float level sensor is compatible with water, oils, coolants, chemicals, fuels, and various industrial liquids with specific gravity above 0.7g/cm3. The 304 stainless steel liquid level sensor body provides excellent corrosion resistance, while the PTFE-insulated cable offers protection against acids, alkalis, and high-humidity environments.
Q3: Can I adjust the switching points of this water level float switch after installation?
A3: Yes. The dual-point level float switch features adjustable retaining clips that can be repositioned along the 8mm stainless steel stem. Simply loosen and move each clip to the desired height for customized high and low liquid detection thresholds, accommodating different tank depths and capacity requirements from 1L to 100L.
Tips: How to choose the right stem length for this dual-point level float switch?
Selecting the correct stem length ensures accurate liquid level detection for your specific tank depth.
Thank you for buying industrial test and measurement equipment on SISCO.com, all products sold by SISCO and the partner cover a 12 months warranty, effective from the date of receiving the products.
SISCO is responsible for providing free spare parts, and free technical support to assist the customer to repair the defective products until the problem is solved.