The intrinsically safe loop powered tank or silo level indicator displays engineering units connected in series with one 4-20 mA continuous level transmitter, and is available with two optional relays and an isolated 4-20 mA repeater. Select this panel mount indicator for use with intrinsically safe two-wire level sensors. For field mount installation, add a single or two indicator NEMA box.


  • LCD main display with secondary unit and bar graph display
  • Easy configuration via the push button display module
  • Available with 2 latching relays and isolated 4-20 ma repeater
  • DIN enclosure with NEMA 4X faceplate and shallow case
  • Linear, square root and programmable exponent functions
  • Non-volatile memory with security password protection
  • Available with NEMA boxes for easy field installation


P/N Description From
LI24-1001 Intrinsically safe level indicator $776.00
LI24-1011 Intrinsically safe level indicator with repeater $990.00
LI24-1201 Intrinsically safe level indicator with 2 relays $990.00
LI24-1211 Intrinsically safe level indicator with 2 relays & repeater $1,120.00
LM91-1001 Single NEMA box, non-windowed, 1/8 DIN, PC $340.00
LM91-2001 Double NEMA box, non-windowed, 1/8 DIN, PC $380.00
LM92-1002 Single NEMA box, windowed, 1/8 DIN, PC $440.00
LM92-2002 Double NEMA box, windowed, 1/8 DIN, PC $470.00


Sensors and PodView indirectly, are configurable via our free WebCal PC software and one Fob USB adapter. Sensors are offered with and without Fobs. Fobs are universal and can be used to configure any WebCal compatible product. Download your free copy of WebCal in English or Chinese.


Display type: LCD, 5-digit top / 8-digit bottom

Display units: Engineering

Display output: -9999 to 99999 (top) / -9999999 to 999999999 (bottom)

Display height: 0.7” (17.8mm) top / 0.4” (10.2mm) bottom

Decimal point: Floating

Backlight: LED

Configuration: Push button

Memory: Non-volatile

Sensor input: (1) 4-20 mA transmitter

Loop power: 12-30 VDC

Voltage drop: 1.5 VDC w/o backlight, 4.5 VDC w/ backlight

Contact type: -10_1: N/A; -12_1: (2) SPST relays (latching)

Contact rating: -10_1: N/A; -12_1: 1A @ 250 VAC / VDC res. load

Contact delay: -10_1: N/A; -12_1: 0-9.999 seconds

Repeater output: -1_01: N/A; -1_11: 4-20 mA, 7-30 VDC ext. power required

Process temp.: F: -40° to 167°, C: -40° to 75°

Ambient temp.: F: -40° to 185°, C: -40° to 85°

Enclosure type: 1/8 DIN, panel mount

Enclosure rating: NEMA 4X (IP65) faceplate

Enclosure mat’l: PPE & PS blend

Classification: Intrinsically safe

Compliance: CE

Approvals: UL-C/UL; Class I, Div 1, Groups A, B, C & D T4; Class II, Div 2, Groups A, B, C & D T4; Ex ia IIC T4 (Canada); Class I Zone 0, Zone 1, AEx ia IIC T4 (US); Class I Zone 2, Group IIC T4 (US)


If you want help in selecting a sensor for your application, please submit a Level Questionnaire. An engineer will review your requirements and suggest a product solution via email.