RV Electronics Sender SP0028 – 7.5 m Water Tank Probe

Take the guesswork out of your water gauge setup with the RV Electronics Standard Sender (SP0028). It’s the perfect 7.5 m probe that brings accurate water-level readings across your caravan, RV, or camper trailer.

***Sender hole will automatically be added to your tank order when you order one or more sender units.

If you order one sender with a fresh and grey water tank, the sender hole will be added to the fresh water tank unless otherwise specified.

If you order two senders with multiple fresh and grey water tanks, the sender holes will be added to one fresh and one grey water tank unless otherwise specified***.

Why this sender probe stands out -

• Precision without motion: Uses a stationary arm with five sensors to deliver reliable water-level readings—no moving parts, no wear points.
• Easy, glue-free install: Requires just one 22 mm (7/8") hole; the smart self-sealing grommet compresses tight as you tighten the nut—watertight, clean, and hassle-free.
• Built to last in Aussie conditions: Equipped with marine-grade stainless steel screws and ultra-resilient grommet sealing, built for temperature extremes from –30 °C to 100 °C.
• Outstanding compatibility: Seamlessly integrates with RV Electronics gauges and is also compatible with BEP 600TG, Redarc Redvision, BMPRO, and more.
• Made in Australia + backed by warranty: Australian-manufactured quality with a solid 1-year warranty for true peace of mind. 

Quick Specs

• Cable Length: 7.5 m lead (SP0028)
• Tank Depth Range: Suits tanks 100 mm to 280 mm deep (4″–11″)
• Fitment: Single tank sender, fits both plastic and metal tanks
• Mounting Needs: Only a 22 mm hole and tight nut needed—no extra sealing required
• Ideal for: Utes, trailers, caravans, motorhomes, camper trailers, and 4WD setups—especially where reliable water monitoring matters.