Raymarine A22112 Plastic TH 12DEG Tilt DT800
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Raymarine A22112 Plastic TH 12DEG Tilt DT800 Product Description
DT800 12° Through Hull Depth / Temperature Smart TransducerDiscover the Precision of High-Frequency Depth and Temperature Sensing
Engineered for boaters who demand reliable underwater data without the clutter of traditional setups, this thru-hull transducer delivers pinpoint depth readings and real-time water temperature. Its 235kHz operation shines in shallow waters, providing crisp, interference-free performance even alongside your primary 50/200kHz fishfinder. The 12-degree tilt design ensures optimal beam angle on hulls with moderate deadrise, capturing accurate data from dead ahead.
Crafted from durable plastic, it withstands the marine environment while remaining lightweight and easy to handle during installation. Forget bulky external pods—smart sensor technology processes signals right inside the unit, streamlining your dash and simplifying connections.
Seamless Integration with Your Existing Gear
Directly plugs into the ST70 backbone, making it a plug-and-play upgrade for ST70 users. No extra hardware means less wiring hassle and a cleaner install. It's a perfect match for aluminum or fiberglass hulls, where its non-corrosive construction prevents long-term degradation from saltwater exposure.
- Effortless ST70 connectivity—no pod required
- Suits aluminum and fiberglass vessels for broad application
- 2-inch hole size for standard thru-hull mounting
Boaters often praise how this setup frees up space on multi-instrument panels, letting you focus on navigation rather than troubleshooting signal issues.
Pro Tips for a Flawless Thru-Hull Installation
Prep your hull by marking a flat spot below the waterline, ideally forward of props and keels to avoid turbulence. Drill a precise 2-inch hole, bed the transducer in marine sealant, and secure with the included nut. The 12-degree tilt compensates for hull angle, directing the beam straight down for maximum accuracy.
Post-install, fair the housing with epoxy filler to minimize drag—users report smoother rides and better fuel efficiency after this step. Test in shallow water to calibrate; the high-frequency pulse excels at detecting bottom structure for anchoring or shallow-draft cruising.
"Switched to this from a flush-mount, and the depth consistency in choppy conditions is night and day." – Experienced fiberglass trawler owner
Why It Outperforms Standard Transducers
The embedded electronics mean stronger, cleaner signals with less noise—ideal for reading contours in rivers, bays, or coastal zones. Temperature sensing updates instantly, helping you track thermoclines for better fishing spots or monitor conditions during long passages.
Unlike lower-frequency units prone to interference, its dedicated band keeps your fishfinder humming independently. Anglers love the detail for structure scanning, while cruisers appreciate the reliability for safe navigation in unfamiliar waters.
Keep It Performing Like New
Wipe the face clean after every trip to remove growth; a soft brush and vinegar solution handles marine fouling without harsh chemicals. Inspect seals annually, especially on trailered boats. In cold climates, haul out before freeze to avoid ice damage.
Pro tip: Pair with a fairing block for high-speed boats to reduce cavitation and extend transducer life.
Frequently Asked Questions
What makes the 12-degree tilt important for this transducer?
The tilt aligns the beam perpendicular to the water surface on hulls with a 12-degree deadrise, ensuring accurate depth readings without distortion from off-angle mounting. It's key for V-hull boats to avoid weak bottom coverage.
Does it work with other Raymarine instruments besides ST70?
It's optimized for direct ST70 backbone connection, but check your model's compatibility for SeaTalk networks. The smart sensor tech simplifies most legacy Raymarine depth systems.
Will this interfere with my fishfinder?
No—running at 235kHz, it stays clear of standard 50/200kHz fishfinder frequencies, allowing both to operate simultaneously without crosstalk.
What hull types is it best for?
Ideal for aluminum and fiberglass hulls. The plastic body resists corrosion, but avoid wood or steel where specialized models might be needed.
How do I know the installation hole size?
It requires a standard 2-inch (51mm) diameter hole. Use a holesaw for clean cuts, and always dry-fit before sealing.
What depth range can I expect?
High-frequency design excels up to several hundred feet in ideal conditions, with superior resolution in shallows under 100 feet—perfect for inland and coastal use.
Do I need extra hardware for temperature display?
Nope—the integrated sensor feeds both depth and temp data directly via the backbone. Your ST70 displays it instantly without pods or converters.
Compatible with the following instruments:
- ST70 (direct connect to ST70 backbone, no pod required)
- Compatible hull material: aluminum and fiberglass
Hole diameter for installation: 2"
Operates at 235kHz so there is no interference with your 50/200 kHz fishfinder transducer.
Airmar's Smart™ Sensors have embedded microelectronics, meaning the signal is processed from within the transducer itself, eliminating the need for an ST70 transducer pod.
Depth and Temperature
"The DT800 is a low-profile, retractable, thru-hull sensor that computes accurate depth and temperature data and sends it to any NMEA 0183 or NMEA 2000 display. The DT800 operates at a frequency of 235 kHz and can run simultaneously with other Airmar 50\/200 kHz transducers on-board with no interference. The broadband ceramic delivers depth readings to 183 m (600'), as well as accurate shallow-water readings in as little as 500 mm (1.6')."
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Raymarine A22112 Plastic TH 12DEG Tilt DT800 Technical Specifications
| Type: | |
|---|---|
| Vendor: |
Raymarine |
| Weight: |
2.0 lb |
Raymarine A22112 Plastic TH 12DEG Tilt DT800 User Reviews
Raymarine A22112 Plastic TH 12DEG Tilt DT800 Shipping & Return
| Shipping Weight: |
2.0 lb |
|---|---|
| Box Sizes: |
1.00 (h) x 1.00 (w) x 1.00 (l) |
| Cubic Feet: |
1.0 |
| Returnable: |
Yes |
| USPS First Class: |
Yes |
| P65: |
Yes |
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