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Brand: Veeder-Root
Veeder-Root Mag Plus In-Tank Probe for Gasoline and Diesel
Description
Stainless steel magnetostrictive probe for gasoline, diesel and water level
The Veeder-Root stainless steel Mag Plus in-tank probe for gasoline and retail diesel measures product level, water level and temperature in underground (UST) and aboveground (AST) storage tanks. Its stainless steel shaft carries a high-grade polymer (HGP) canister and is used with float installation kits that set whether the probe reads gasoline, diesel or a phase-separating fuel blend.
Three versions are offered: 0846397-1xx with water detection and 0.1 GPH static testing capability, 0846397-2xx with water detection and 0.2 GPH testing capability, and 0846397-3xx with water detection for inventory only, without leak detection. The probes connect to Veeder-Root TLS consoles and are used for inventory, delivery reconciliation and, on the leak-detection versions, tank tightness tests on USTs.
Technical specifications
Source document: Veeder-Root 577014-449-09 Rev. E (2026). The product code at the top of this page is our own; part numbers are quoted as printed.
| Parameter | Specification |
|---|---|
| Manufacturer / product | Veeder-Root stainless steel Mag Plus in-tank probe, gasoline and retail diesel, with water detection |
| Part numbers | 0846397-1xx (0.1 GPH testing); 0846397-2xx (0.2 GPH testing); 0846397-3xx (inventory only); all with HGP canister, UL |
| Float kits | 0886100-xx0 phase separation, 4 in; 0846400-1×0 gasoline, 2 in; 0846400-0x1 diesel, 4 in; 0846400-1×1 diesel, 2 in |
| Cable length / probe length | 5 ft (1.5 m) or 10 ft (3.05 m); probe length 48 in (1.2 m) to 144 in (3.66 m) |
| Measurement accuracy | 0.0300 in (0.762 mm) for product and for water |
| Resolution / repeatability | 0.002857 in (0.0726 mm) per sample; repeatability 0.0079 in (0.200 mm) |
| Minimum measurement | 2 in float: product 3.23 in (8.2 cm), water 0.867 in (2.2 cm); 4 in float: product 3.04 in (7.0 in for phase-separation float), water 0.630 in (1.6 cm) |
| Operating temperature | -40 to +122 °F (-40 to +50 °C) |
| Temperature accuracy (5-point) | 0.54 °F (0.3 °C) from +14 to +104 °F; 1.8 °F (1.0 °C) at -40 to +14 °F and +104 to +122 °F |
| Test and monitoring options | 0.1 GPH static (UST only); 0.2 GPH static (UST only); 0.2 GPH CSLD (UST only); inventory only (UST and AST); BIR AccuChart (UST only) |
| Fuels listed | Gasohol up to 20% ethanol, gasoline with up to 7% methanol and 8% TBA, up to 15% MTBE, up to 17% TAME, leaded gasoline, premium and regular unleaded, up to 15% ETBE, up to 12% TBA, aviation gas (diesel float kit), diesel fuel oil #2, kerosene fuel oil #1, low-density biodiesel, mineral spirits |
| Console compatibility | TLS-450PLUS up to 64 probes (32 with BIR), TLS4 12, TLS4B 6, TLS-350/R/PLUS 16 through the 4-input probe module 0329356-002, TLS-300i 4 and TLS-300C 2 |
| Agency listings | UL, cUL, ATEX, IECEx; OIML certified with TLS series consoles |
| Accessories | 0312020-952 4 in NPT riser cap and ring kit; 0330020-282 4 in threaded NPT riser cap |
Choosing the float kit and probe version
The float kit is part of the product choice. A phase separation float kit (4 in) is used for gasoline blends that can separate; the gasoline kit uses a 2 in float; the diesel kits use 4 in or 2 in floats. The datasheet footnotes that blends marked with an asterisk are compatible with the phase separation float kit, and aviation gas is compatible only with the diesel float kit. Tank testing is approved for B6 to B20 biodiesel meeting ASTM D7467 and B100 meeting ASTM D6751.
The minimum measurement figures show how close to the tank bottom or to the water level the probe can read, which matters for low-level alarms and delivery reconciliation.
What to confirm before ordering
- Whether 0.1 GPH or 0.2 GPH testing is needed or inventory only, which sets the 0846397-1xx, -2xx or -3xx number.
- Tank type: static tank testing and BIR are for underground tanks only.
- Probe length, determined by tank depth and riser, and the float kit for the fuel.
- The console and its probe interface module, using the compatibility table in the datasheet.
How the MAGPLUS-GAS-DSL probe works
A float on the probe shaft carries a magnet. A pulse sent along the shaft meets the magnetic field at the float and returns. The time of the return tells the position of the float, and so the level of the fuel. A second float reads the water level.
Where the MAGPLUS-GAS-DSL probe is used
- Underground fuel tanks
- Aboveground fuel tanks
- Retail fuel sites
- Delivery checks
- Inventory control
Selection checklist for the MAGPLUS-GAS-DSL probe
- Fuel type
- Probe length
- Cable length
- Float kit
- Version with or without leak testing
- Tank type
- Console type
- Water detection need
Installation, commissioning and maintenance notes for the MAGPLUS-GAS-DSL probe
Fit the probe in the tank riser with the float kit for the fuel. Connect the cable to the console and set the probe in the console set-up. Check the readings against a dip at regular intervals.
Requesting a quotation for the MAGPLUS-GAS-DSL probe
Please send the fuel, the tank depth and the version needed. Seven Star LLC serves industrial customers in Oman and the GCC and replies with a quotation based on the information provided.
MAGPLUS-GAS-DSL probe type
It is a magnetostrictive in-tank probe.
MAGPLUS-GAS-DSL maker
It is made by Veeder-Root.
MAGPLUS-GAS-DSL fuels
It is used for gasoline and retail diesel.
MAGPLUS-GAS-DSL measurements
It measures product level, water level and temperature.
MAGPLUS-GAS-DSL shaft
The shaft is stainless steel.
MAGPLUS-GAS-DSL canister
The shaft carries a high-grade polymer canister.
MAGPLUS-GAS-DSL float kits
Float kits set whether the probe reads gasoline, diesel or a phase-separating blend.
MAGPLUS-GAS-DSL versions
Three versions are offered.
MAGPLUS-GAS-DSL first version
The 0846397-1xx has water detection and 0.1 GPH static testing capability.
MAGPLUS-GAS-DSL second version
The 0846397-2xx has water detection and 0.2 GPH testing capability.
MAGPLUS-GAS-DSL third version
The 0846397-3xx has water detection for inventory only.
MAGPLUS-GAS-DSL consoles
The probes connect to Veeder-Root TLS consoles.
MAGPLUS-GAS-DSL cable length
The cable is 5 ft or 10 ft long.
MAGPLUS-GAS-DSL probe length
Probe length runs from 48 in to 144 in.
MAGPLUS-GAS-DSL float sizes
Floats come in 2 in and 4 in sizes.
MAGPLUS-GAS-DSL gasoline kit
The 0846400-1×0 kit is a 2 in gasoline float.
MAGPLUS-GAS-DSL diesel kit
The 0846400-0x1 kit is a 4 in diesel float.
MAGPLUS-GAS-DSL operating temperature
The operating range is minus 40 to plus 50 degrees C.
MAGPLUS-GAS-DSL tank types
Inventory use covers underground and aboveground tanks.
MAGPLUS-GAS-DSL product code
The product code on this page is our own and part numbers are quoted as printed.
Probe records for the MAGPLUS-GAS-DSL
Record the tank, the probe length and the date of each check.
Choosing the right MAGPLUS-GAS-DSL version
Choose the version from the fuel and the tank type.
Documents and quotation
The Veeder-Root datasheet for this Mag Plus probe is attached to this page as a PDF. Send us the fuel, tank type and depth, console and the testing capability required, and we will quote the matching probe and float kit. Seven Star LLC is an independent supplier in Muscat; price and lead time are confirmed per RFQ. Related range: level instrumentation.
Datasheets & Documents
- Datasheet Veeder-Root Stainless Steel Mag Plus In-Tank Probe for Gasoline and Retail Diesel datasheet (P/N 577014-449-09 Rev. E) Download
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About brand
Veeder-Root is a fuel management specialist based in Simsbury, Connecticut, USA, founded in 1866 and part of Vontier. It is best known for TLS automatic tank gauges, magnetostrictive in-tank probes and leak detection sensors for fuel storage.
Seven Star LLC is an independent supplier in Muscat. We list Veeder-Root consoles, probes and sensors from the maker's published datasheets for fuel stations, depots and airports in Oman and the GCC.
Veeder-Root product series
Tank gauge consoles include the TLS4 and the non-expandable TLS4B, the TLS-450PLUS and the legacy TLS-350PLUS. Mag Plus in-tank probes are offered for gasoline and diesel, jet fuel, LPG and light and heavy oil, and Mag-FLEX probes cover tall tanks. Leak detection sensors include the discriminating containment sump sensor 0794380-352 and the interstitial sensor 0794390-420 for double-wall steel tanks. The EMR4 electronic meter register is used on fuel delivery trucks.
Where Veeder-Root products are used
Petrol stations, fuel depots, airports and fleet fuelling sites, where the system measures product level, water and temperature in underground and aboveground tanks, monitors sumps and interstitial spaces and supports inventory reconciliation and leak tests.
Ordering Veeder-Root products: what we need
Send the console model and the modules installed, the number of tanks, the product in each tank, the tank type and diameter for probe length, and the sensors required. Where a model is discontinued, we say so on the product page and confirm the successor before quoting.
Browse Veeder-Root products by category: Level Instrumentation.
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Frequently Asked Questions
Product level, water level and temperature in gasoline and diesel tanks, USTs or ASTs.
0846397-1xx with 0.1 GPH testing, 0846397-2xx with 0.2 GPH testing, and 0846397-3xx for inventory only.
0.0300 in (0.762 mm) for both product and water level.
TLS-450PLUS, TLS4, TLS4B, TLS-350 series, TLS-300i and TLS-300C, with the interface module shown in the datasheet.
Yes. All three listed versions include water detection.

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