3000 Series Economy Indicators
Measurements Canada Approved!
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Product Data Sheet (PDF)
Instruction Manual (PDF)
Special Features

Ideal for bench and floor scale applications, OHAUS 3000 series indicators offer either a dry-use, ABS plastic indicator housing or an NEMA4X/IP66 waterproof stainless steel housing. They are perfect for general weighing and simple counting applications in production, packaging, warehouse, inventory, shipping and receiving areas.
  • T31P features a high-impact durable ABS housing with reversible face for either wall, column or table-top mounting
  • Large, backlit LCD display quickly displays results in a choice of multiple weighing units (lb, oz, combined lb:oz, kg or g)
  • Drives up to four 350Ω load cells
  • 10,000d maximum displayed weighing resolution
  • Parts counting mode with a minimum Average Piece Weight of 1d, selectable sample sizes, and automatic retention of last sample size used and Average Piece Weight data
  • Built-in bidirectional RS232C for printing or connection to PC
  • Internal rechargeable lead acid battery lasts 100 hours between recharges
  • The T31P includes an AC adapter, the T31XW has an internal universal switching power supply
Capacity: 5 to 20,000 lb/kg
Display resolution: 1:10,000
Weighing units: lb, oz, lb:oz, kg, g
Housing: ABS plastic
Dimensions WxHxD (in/cm): 8.2" x 3.4" x 6.5"
210 x 87 x 166 mm (housing)
Functions: Weighing, Parts Counting
Minimum APW (without Auto-add) (lb/g): 1d
Sample size: 5, 10, 20, 50, 100, 200 pieces
Display: 1" / 2.5 cm high, 6-digit, 7-segment backlit LCD
Display type: LCD with white LED backlight
Keyboard: 4-button mechanical switches, raised, tactile
Load Cell Drive: Up to four 350 ohm load cells
Load Cell Excitation (V dc): 5V DC
Load Cell input sensitivity: Up to 3 mV/V
Stabilization time (seconds): Within 2 seconds
Auto Zero Tracking: Off, 0.5, 1 or 3 d
Zeroing range: 2% or 100% of capacity
Span Calibration: 5 lb/kg to 100% of capacity
Interface: Bi-directional RS232C
Power Requirements: AC adapter or internal rechargeable lead acid battery
AC adapter power requirements: 9 VDC, 0.5A
Battery requirements: Rechargeable sealed lead acid battery
Battery life (typical): 100-hour operation on full charge
Operating Temperature Range: 14° to 104° F / -10° to 40° C
Operating Humidity Range: 80% for temperatures up to 88°F/31°C, decreasing linearly to 50% at 104°F/40°C, non-condensing
Net Wt. (lb/kg): 3.6 lb / 1.6 kg
Shipping Wt. (lb/kg): 5.7 lb / 2.6 kg
Shipping dimensions (WxDxH) (in/cm): 10.7" x 9.3" x 6.9"
272 x 235 x 175 mm