Simarine
Simarine STR1 Radar Tank Level Sender Analogue
Pickup available at Mercury Yacht Harbour
Usually ready in 2-4 days
Description
The Simarine STR1 is an analogue radar tank level sender. A micro-radar mounted on top of the tank measures the liquid level from outside, so nothing touches the water or fuel and there are no floats or moving parts to stick or wear. It reads through flat plastic or fibreglass tank tops up to 10 mm thick and covers tank heights from 150 mm to 2000 mm with ±2% accuracy. Metal tanks can be measured with the STR tank adapter, sold separately.
The STR1 outputs three analogue signals at the same time: 0 to 190 Ω, 240 to 30 Ω and 0 to 5 V DC. That means one sender can feed up to three different gauges or monitoring systems, including standard European and US resistive gauges and voltage-input displays. Simarine documents connecting it to the SC303 and SC503 combo shunts and the ST107 tank module, so it works with the PICO battery monitor. The wires are colour coded: green for 0 to 5 V, white for 0 to 190 Ω, yellow for 240 to 30 Ω and blue as common.
Setup and calibration are done over Bluetooth in the Simarine Connect app for iOS and Android, where you can also read the level directly on your phone. The sender runs on 8 to 35 V DC, works from -20 to 70 °C and is sealed to IP67. Simarine makes the STR1 in Slovenia and covers it with a 3-year warranty.
PRODUCT DETAILS
- Non-contact micro-radar measures through plastic or GRP tank lids up to 10 mm
- Tank heights from 150 mm to 2000 mm, ±2%
- Simultaneous 0-190 Ω, 240-30 Ω and 0-5 V outputs
- Drive up to three gauges from one sender
- Works with Simarine SC303, SC503 and ST107 inputs for PICO
- Bluetooth setup and readout in the Simarine Connect app
- Metal tanks with the STR tank adapter (sold separately)
- IP67, 8 to 35 V DC
- 3-year warranty, made in Slovenia
- STR1 radar tank level sender
No exploded diagram available for this product.
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No spares or accessories listed for this product.
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Measurement
| Sensing method | Non-contact micro-radar, top-mounted |
| Tank height | 150 to 2000 mm |
| Accuracy | ±2% |
| Sampling frequency | 1 Hz |
Tank compatibility
| Tank material | Plastic or GRP direct; metal via STR tank adapter (sold separately) |
| Maximum lid thickness | 10 mm |
Outputs
| Resistive output 1 | 0 to 190 Ω (white wire) |
| Resistive output 2 | 240 to 30 Ω (yellow wire) |
| Voltage output | 0 to 5 V DC (green wire) |
| Common | Blue wire |
| Simultaneous outputs | Yes, all three |
Connectivity
| Wireless | Bluetooth, Simarine Connect app |
| Simarine compatibility | SC303, SC503, ST107 inputs |
Electrical
| Supply voltage | 8 to 35 V DC |
Environmental
| Operating temperature | -20 to 70 °C |
| Ingress protection | IP67 |
Physical
| Weight | 0.172 kg |
General
| Part number | STR1 |
| Warranty | 3 years |
| Country of origin | Slovenia |
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