Go here and search for the 181t model it comes up with a selection of pictures choose the monitor picture then scroll down and clcil the 181t its on the right a few piccys down, this then gives you the spec.
Hope this helps,
Ive cut and paste below the spec in case my instructions arent any good.
Specifications
Panel Type: a-si TFT/PVA
Viewable area: 18.1"
Pixel Pitch (mm): 0.281
Brightness (Typ.): 250 cd/m²
Contrast Ratio: 500 : 1
Viewing Angle (h/V): 170°/170°
Response Time (ms): 25
Interface: Analog/Digital
Horizontal Frequency (kHz): 30-81
Vertical Frequency (Hz): 56-85
Bandwidth (MHz): 135
Maximum Resolution: 1280*1024
Colour Supported: 16.7 Mil.
Input Video Signal: Analog RGB, DVI Digital link
Video Level: Analog: 0.7VP-P,DIGITAL: TMDS™
Sync. Type: Separate H/V, Composite H/V, SOG
Imput Connectors: 15pin D-sub, DVI-D
Included Signal Cables: VGA cable, DVI cable
USB powered hub option: N/A
DDC: 1/2B
On Mode: 40 Watts (Max.)
DPMS Mode: 3 Watt (0 Watt Mech. S/W)
Energy star/NUTEK:O
Multimedia Speakers: X
OSD-Digital Display Director™: O
Wall-Mount: VESA 100mm
Emissions Standard: TCO'99
Cabinet Colour (front/back): Silver
Other include accessories
Mac compatibility: O
(WxHxD) mm with stand: 398.2 x 443.2 x 208.4
Packing (WxHxD) mm: 482 x 512 x 262
Weight Net (KG): 5.8
Gross (KG): 7.8
Special Features: Dual interface, Power built-in, Narrow Bezel
Warranty (P/L/Backlight): 3y/3y/20,000h
Stand: Angle / Pivot
hope this helps.