| Specification | model | Measuring range | Voltage input | Current input | Current output | RS485 communication | relay | sensor housing | Electronic unit housing |
|---|---|---|---|---|---|---|---|---|---|
| two-wire system | HLTP | Minimum 4m, maximum 30m | DC20~32V | >DC30mA | DC4~20mA | none | none | ABS/PVC/PTFE | ABS |
| HLTB | Minimum 4m, maximum 30m | DC20~32V | >DC30mA | DC4~20mA | none | none | ABS/PVC/PTFE | ABS | |
| HLTG | Minimum 4m, maximum 30m | DC20~32V | >DC30mA | DC4~20mA | none | none | ABS/PVC/PTFE | ABS | |
| HLTV | Minimum 4m, maximum 30m | DC20~32V | >DC30mA | DC4~20mA | none | none | ABS/PVC/PTFE | ABS | |
| HLTK | Minimum 4m, maximum 30m | DC20~32V | >DC30mA | DC4~20mA | none | none | ABS/PVC/PTFE | ABS | |
| HLTI | Minimum 4m, maximum 8m | DC21~27V | >DC35mA | DC4~20mA | none | none | ABS/PVC/PTFE | Cast aluminum, exterior sprayed | |
| three-wire system | HLTP | Minimum 4m, maximum 40m | DC21~27V | >DC60mA | DC4~20mA | none | none | ABS/PVC/PTFE | ABS |
| HLTP | Minimum 4m, maximum 40m | DC21~27V | >DC60mA | DC4~20mA | none | none | ABS/PVC/PTFE | die cast aluminum | |
| HLTP | Minimum 4m, maximum 40m | DC21~27V | >DC60mA | DC4~20mA | none | none | ABS/PVC/PTFE | die cast aluminum | |
| four wire system | HLTP | Minimum 4m, maximum 40m | DC21~27V or AC85~265V | >DC80mA or ≥10mA | DC4~20mA optional Hart protocol | none | none | ABS/PVC/PTFE | ABS |
| HLTP | Minimum 4m, maximum 40m | DC21~27V or AC85~265V | >DC80mA or ≥10mA | DC4~20mA optional Hart protocol | none | none | ABS/PVC/PTFE | die cast aluminum | |
| serial port | HLTP | Minimum 4m, maximum 30m | DC20~32V | >DC30mA | DC4~20mA | none | none | ABS/PVC/PTFE | ABS |
| HLTP | Minimum 4m, maximum 30m | DC20~32V | >DC30mA | DC4~20mA | none | none | ABS/PVC/PTFE | ABS |
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