Helix Oxford OX-240 1 of 2

Helix Oxford OX-240

Helix Calculator OX-240 With Manual

£3.97 👍 Good Deal Buy on eBay

Asking Price 2 days ago
Listed 2026-03-02 Derby, GB
From listing #237063: Helix Oxford Scientific Calculator for GCSE Exams
View Listing
Helix Oxford OX-240 scientific calculator with protective slide cover and user guide. Basic scientific functions (sin, cos, tan, log, ln, etc.) with two-line display. Designed for UK GCSE exams.
Item Details
Brand: Helix
Item Type: Computer Calculator
Computer Model: OX-240
Cosmetic condition: Good - Moderate wear, normal for age
Functional condition: Fully Working - Tested and fully functional
Comes With
Helix OX-240 - Computer Market Overview

Based on 5 sold computers, one should expect to pay ~$5 for a working unit. However, this unit's condition (Good / Fully Working) brings its guide price to $5. 6 others are also listed for sale.
This item ($5) is in line with the guide price.

Price by Condition
Refurbished Fully Working Partially Working Powers On Untested Not Working For Parts
New ~$22 $6 (1) ~$18
Mint ~$18 ~$14 ~$13 ~$15
Excellent ~$9 ~$8 ~$6 ~$6 ~$7 ~$3 ~$2
Good ~$6 THIS ITEM $5 (2) ~$5 ~$4 ~$4 $3 (2) ~$4 ~$2 ~$1
Fair ~$4 ~$3 ~$3 ~$3 ~$1 ~$1
Poor ~$3 ~$2 ~$2 ~$2 ~$1 ~$1
$X (N) — Median sold price (N sales) ~$X — Guide price This item
Guide prices based on 5 sales, Good/Fully Working baseline ~$5. Click a cell to browse matching listings.