Light curtain sn-gm9 Detecting distance:0mm~4000mm Upper light beam:1780mm 20mm Power voltage:10~30v dc Adaptive temperature:-20~+65 Elevator parts light curtain, door machine, selcom, mitsubishi door spare parts supplier Cost reduction-without control box Safety-low voltage(dc 24v) Simple connection-less wire Relay output, same as normal one Lighter package Accord with en81-20 We can produce elevator parts light curtain, door machine, selcom, mitsubishi door spare parts.