LTMR Level Transmitter – Magnetic Reed Type
Pre-calibrated at factory — no field calibration required. 4–20 mA or 1–5 VDC output, ±3 mm accuracy, up to 5 metres.

LTMR consists of a non-magnetic sealed stem containing a series of reed switches and resistors, a float carrying a magnet and an enclosure containing electronics. As the float travels, the magnet taps off reed switches varying resistance fed to electronics, which converts the change in resistance to an industry standard analog output. Pre-calibrated at factory — no field calibration required.
Key Features
- Pre-calibrated at factory — no field calibration required
- Sturdy and versatile construction
- Easy installation — no special tools or expertise needed
- Two-wire 4–20 mA or three-wire 1–5 VDC output options
- 5 mm or 10 mm resolution options
- ±3 mm accuracy
- Probe length up to 5,000 mm
- Ex.Proof Gr IIA / IIB / IIC available
Applications
Specifications
| Enclosure | WP IP65 / Ex.Proof Gr IIA IIB / IIC |
| Wetted Parts MOC | SS304 / SS316 / SS316L / PP |
| Output Signal | 4–20 mA (2-wire) / 1–5 VDC (3-wire) |
| Resolution | 5 mm / 10 mm |
| Accuracy | ±3 mm |
| Probe Length Range | 300 to 5,000 mm |
| Power Supply | 24 VDC |
| Max Operating Temp | 120°C |
| Max Pressure | 10 Kg/cm² |
| Min Specific Gravity | 0.7 |
Product Datasheet
Download the full specification sheet for the LTMR Magnetic Reed Level Transmitter.
View Datasheet (PDF)Typical Applications & Connections
How the LTMR magnetic reed transmitter is applied for reliable continuous level.
Factory Pre-Calibrated Installs
No field calibration — wire up and read, saving commissioning time.
Continuous Level to PLC / SCADA
4–20 mA (2-wire) or 1–5 VDC (3-wire) output for your control system.
Clean Process Tanks
Hygienic SS construction for pharma, food and beverage liquids.
Chemical Storage
PP wetted parts for corrosive media.
Day Tanks & Utilities
Reliable ±3 mm accuracy over ranges up to 5 m.
Local + Remote Indication
Pairs with a magnetic level gauge for visual reading plus signal output.
Choosing the right build: Pre-calibrated reed-chain transmitter; 4–20 mA or 1–5 VDC; ±3 mm; probe 300–5,000 mm; SS or PP wetted parts; liquid SG ≥ 0.7; up to 120°C and 10 kg/cm².