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Kill-a-Watt Killer Exclusive

Kill-a-WattUnusual3d ago
Sell price
49 keys, 47.33 ref
Buy price
43 keys, 16.11 ref
In keys
49.8 keys
In USD
$112.45 at the Steam key rate

Community price on backpack.tf: 37.0–46.0 keys, last changed 2026-03-06 (6mo ago). The live quote above, 49.8 keys, is 34% higher and last moved 3d ago. They are different measures: the quote is what traders and bots are asking and bidding on the classifieds right now, and it moves for thousands of items every day; the community price is a suggestion accepted by vote, which changes only when someone argues it should. A quote well away from the vote is usually a price that is about to be re-argued. Community prices from backpack.tf, read under an hour ago.

Price history

55 observations

Interactive chart. Press the left and right arrow keys to move along the series, Home or End to jump to either end, Escape to clear.

The key axis converts at today's rate. Prices are recorded in metal, so a line that is flat in keys followed the key rate rather than standing still.

Kill-a-Watt Killer Exclusive sell price, 2025-09-25 to 2026-09-02: 55 observations, from 44.1 keys to 49.8 keys. Sampled evenly across the range.
Observed (UTC)SellBuy
25 SEP 2025 · 03:29 UTC44.1 keys41.0 keys
7 OCT 2025 · 16:14 UTC45.9 keys43.3 keys
29 OCT 2025 · 14:01 UTC45.4 keys30.0 keys
6 NOV 2025 · 20:01 UTC39.9 keys16.0 keys
19 NOV 2025 · 12:31 UTC49.0 keys31.8 keys
23 NOV 2025 · 20:34 UTC52.6 keys33.1 keys
1 DEC 2025 · 00:47 UTC52.4 keys33.3 keys
15 DEC 2025 · 00:36 UTC53.3 keys42.2 keys
22 DEC 2025 · 01:04 UTC53.8 keys43.4 keys
1 JAN 2026 · 02:47 UTC51.5 keys42.0 keys
23 JAN 2026 · 11:42 UTC46.0 keys40.2 keys
29 JAN 2026 · 01:43 UTC45.5 keys40.2 keys
8 FEB 2026 · 22:41 UTC44.1 keys38.1 keys
19 FEB 2026 · 06:40 UTC45.5 keys39.8 keys
22 FEB 2026 · 06:40 UTC42.7 keys39.0 keys
8 MAR 2026 · 22:40 UTC41.9 keys30.3 keys
15 MAR 2026 · 20:06 UTC41.4 keys25.5 keys
3 APR 2026 · 02:29 UTC45.6 keys35.7 keys
12 APR 2026 · 16:29 UTC44.9 keys37.1 keys
19 APR 2026 · 16:29 UTC45.8 keys35.9 keys
7 MAY 2026 · 18:31 UTC42.3 keys34.0 keys
10 MAY 2026 · 18:31 UTC44.9 keys36.3 keys
17 MAY 2026 · 22:30 UTC44.7 keys36.2 keys
1 JUN 2026 · 00:29 UTC45.1 keys39.6 keys
8 JUN 2026 · 00:30 UTC44.5 keys39.4 keys
22 JUN 2026 · 00:10 UTC45.2 keys40.6 keys
29 JUN 2026 · 01:14 UTC48.3 keys42.0 keys
5 JUL 2026 · 19:12 UTC45.7 keys39.7 keys
19 JUL 2026 · 22:44 UTC48.9 keys42.5 keys
29 JUL 2026 · 04:46 UTC49.1 keys42.7 keys
11 AUG 2026 · 05:11 UTC53.0 keys46.0 keys
21 AUG 2026 · 08:08 UTC35.0 keys30.4 keys
21 AUG 2026 · 22:08 UTC36.1 keys31.4 keys
22 AUG 2026 · 22:08 UTC42.9 keys37.3 keys
23 AUG 2026 · 10:08 UTC47.8 keys41.6 keys
23 AUG 2026 · 22:08 UTC51.5 keys44.8 keys
25 AUG 2026 · 22:09 UTC52.8 keys46.0 keys
27 AUG 2026 · 04:10 UTC46.9 keys40.8 keys
1 SEP 2026 · 22:08 UTC50.2 keys43.6 keys
2 SEP 2026 · 16:08 UTC49.8 keys43.3 keys

Price history in numbers

55 readings since 25 Sep 2025

Over the last 30 days the Kill-a-Watt Killer Exclusive's sell price ranged from 35.0 keys to 53.0 keys and is down 5.6% after 13 moves. Over a year it ranged from 21.2 keys to 53.8 keys (up 12.7%). Today's 49.8 keys sits in the upper third of its range: the lowest we have recorded is 21.2 keys (9 Nov 2025) and the highest 53.8 keys (22 Dec 2025). The price has moved 54 times since we began recording it — about once every 6 days.

WindowLowHighChangeMovesReadings
30 days35.0 keys53.0 keys−5.6%1314
90 days35.0 keys53.0 keys+11.8%2122
a year21.2 keys53.8 keys+12.7%5455

Details

SKU538;5;u56
Last price change2026-09-02 16:08 UTC
Key rate when recorded62.44 ref

Same effect, other items

the effect across the catalogue

Other effects on the Killer Exclusive

same item, different effect

Priced similarly

across the catalogue