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T/LL415 Oil Level Sensor with Integrated Temperature Probe and CANJ1393 Output

The T/LL415 Liquid Level Sensor is an advanced capacitive level sensor that continuously monitors liquid level and temperature and broadcasts this via a CAN J1939 output protocol.

The T/LL415 Liquid Level Sensor is an advanced capacitive level sensor that continuously monitors
liquid level and temperature and broadcasts this via a CAN J1939 output protocol.
Compact and robust this sensor is ideal for extended temperature range applications such as
monitoring engine, transmission and hydraulic oils in relatively shallow sumps or tanks.

Documents
Data Sheet

Liquid Types

Liquids compatible with the construction materials, typically engine, transmission and hydraulic oils.

Dimensions

Length: Min. 80 mm, Max. 400mm.

Thread: ½” BSPT, ½ BSPP, ¾” UNF, ½” NPTF, M16, M18, M20. Others on
request.
Mounting: Vertical top mounting only.

Materials

Header: 316 stainless steel
Stem: 316 stainless steel
Internal electrode: PTFE sheathed stainless steel
End plug: PTFE
Wetted seals: Fluorosilicone (FVMQ)
Connector enclosure: Deutsch DT04-4P Material: PBT 30% GF
Leads: XLPE wires sheathed in nylon 6 conduit (where fitted). Back-shell and connector dependant on series.

Electrical

Supply Voltage: 9 to 36 VDC.
Supply Current: <30 mA
Supply Protection: 80 VDC over voltage. Reverse polarity 36VDC
Output Type: J1939 CAN.
Output 1: Oil level from 0% to 100% full. Accuracy ±5%
Output 2: Temperature from -40°C to 140°C
Output 2 Accuracy: ±3%
Sensor start up delay: 500mS
Temp reporting: 1 second.

Connections

For J1939 CAN details please consult Rochester Engineering

Environmental Ratings

Operating temp: -40ºC to 125ºC.
Storage temperature:: -40°C to 140°C
Ingress:: Liquid side IP68. Connector side IP67.
Max tank pressure: 1 bar.
EMC: Type approval in accordance with EN ISO 13766:2006.
Vibration: 15.3 grms BS EN 60068-2-4:1995.
Shock: 500 ms-2, 6 ms, BS EN 60068-2-27:1993.
Weight: 0.16 kg (for 300 mm version)

Product Inquiry - TLL415

    Revised 03-9-2026