The 343/344/348 series of flat LED indicators from Sloan are front panel mounted indicators with threaded housing that is designed for panel cut outs of 8.2mm. Available with flush lenses in a choice of clear, white, green, red, amber or blue colours and a choice of 2-3V LED in the following colours, brightnesses and sources:
| White | 2320mcd, 22000mcd |
| Green | 80mcd, 5620mcd, 32500mcd |
| Red | 80mcd, 3000mcd, 7000mcd |
| Yellow | 80mcd, 3000mcd, 7000mcd |
| Blue | 1160mcd, 2120mcd, 9000mcd |
| Red & Green | |
| Phototransistor | 420nm-1130nm |
| IR-Diode | 880nm, 50mW/sr |
The 343/344/348 series are electrically rated at 20mA in a choice of 5V, 12V, 24V or 28V or in constant current driver circuits at 9-48V or 5-28V and 5mA at 230VAC for the 348 series with 2.8 x 0.5 FASTON connectors or pre-wired terminations and sealed to IP64, IP67 or IP68. Constructed in either nickel-plated brass, blackened brass, olive drab brass, stainless steel or blackened stainless steel giving designers a choice of casing colours with a variety of options in both colour and diode style.
| LED Colours | White, Green, Red, Yellow, Blue, Red & Green, Phototransistor, IR-Diode |
| Cut Out | 8.2mm |
| Maximum Brightness | 32,500mcd |
| Max Voltage | 230VAC (@5mA) |
| Max Current | 20mA |
| Operational Temperature | -30°C to +85°C |
| IP Rating | IP64, IP67 or IP68 |