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Kill-a-Watt Detective

Kill-a-WattUnusual3h ago
Sell price
31 keys, 20.11 ref
Buy price
27 keys, 14.66 ref
In keys
31.3 keys
In USD
$70.78 at the Steam key rate

Community price on backpack.tf: 25.0 keys, last changed 2025-10-19 (11mo ago). The live quote above, 31.3 keys, is 25% higher and last moved 3h 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

46 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 Detective sell price, 2025-09-25 to 2026-09-05: 46 observations, from 20.3 keys to 31.3 keys. Sampled evenly across the range.
Observed (UTC)SellBuy
25 SEP 2025 · 03:29 UTC20.3 keys16.6 keys
30 SEP 2025 · 22:49 UTC20.3 keys16.6 keys
9 OCT 2025 · 10:21 UTC19.4 keys17.4 keys
19 OCT 2025 · 22:17 UTC23.0 keys20.7 keys
10 NOV 2025 · 02:25 UTC21.9 keys19.7 keys
5 MAY 2026 · 16:33 UTC20.7 keys17.2 keys
10 MAY 2026 · 22:34 UTC21.3 keys17.9 keys
22 JUN 2026 · 17:13 UTC22.5 keys19.6 keys
29 JUN 2026 · 15:12 UTC15.0 keys13.0 keys
5 JUL 2026 · 23:12 UTC22.1 keys19.2 keys
19 JUL 2026 · 22:44 UTC23.5 keys20.4 keys
29 JUL 2026 · 02:45 UTC25.1 keys21.8 keys
3 AUG 2026 · 04:24 UTC26.1 keys22.8 keys
10 AUG 2026 · 01:11 UTC26.4 keys22.9 keys
18 AUG 2026 · 09:10 UTC16.3 keys14.1 keys
22 AUG 2026 · 08:09 UTC23.8 keys20.7 keys
23 AUG 2026 · 00:09 UTC24.1 keys21.0 keys
24 AUG 2026 · 00:09 UTC24.9 keys21.7 keys
24 AUG 2026 · 12:09 UTC25.4 keys22.1 keys
25 AUG 2026 · 00:09 UTC26.2 keys22.8 keys
25 AUG 2026 · 12:09 UTC26.6 keys23.2 keys
26 AUG 2026 · 00:09 UTC27.0 keys23.5 keys
26 AUG 2026 · 12:09 UTC27.5 keys23.9 keys
27 AUG 2026 · 12:08 UTC28.2 keys24.5 keys
28 AUG 2026 · 00:09 UTC28.4 keys24.7 keys
28 AUG 2026 · 12:08 UTC28.9 keys25.1 keys
29 AUG 2026 · 00:09 UTC29.2 keys25.4 keys
29 AUG 2026 · 12:10 UTC29.5 keys25.7 keys
30 AUG 2026 · 00:10 UTC29.8 keys25.9 keys
30 AUG 2026 · 12:09 UTC30.5 keys26.6 keys
31 AUG 2026 · 12:09 UTC30.1 keys26.2 keys
1 SEP 2026 · 00:09 UTC30.0 keys26.1 keys
1 SEP 2026 · 12:09 UTC30.0 keys26.1 keys
2 SEP 2026 · 00:09 UTC29.6 keys25.8 keys
2 SEP 2026 · 12:09 UTC29.7 keys25.9 keys
3 SEP 2026 · 00:08 UTC30.2 keys26.3 keys
4 SEP 2026 · 00:09 UTC30.8 keys26.8 keys
4 SEP 2026 · 12:08 UTC30.7 keys26.7 keys
5 SEP 2026 · 00:08 UTC30.8 keys26.8 keys
5 SEP 2026 · 16:08 UTC31.3 keys27.2 keys

Price history in numbers

46 readings since 25 Sep 2025

Over the last 30 days the Kill-a-Watt Detective's sell price ranged from 16.3 keys to 31.3 keys and is up 18.8% after 30 moves. Over a year it ranged from 15.0 keys to 31.3 keys (up 54.3%). Today's 31.3 keys sits at the top of its range: the lowest we have recorded is 15.0 keys (29 Jun 2026) and the highest 31.3 keys (5 Sep 2026). The price has moved 44 times since we began recording it — about once every 8 days.

WindowLowHighChangeMovesReadings
30 days16.3 keys31.3 keys+18.8%3031
90 days15.0 keys31.3 keys+39.0%3738
a year15.0 keys31.3 keys+54.3%4446

Details

SKU31277;5;u56
Last price change2026-09-05 16:08 UTC
Key rate when recorded63.11 ref

Same effect, other items

the effect across the catalogue

Other effects on the Detective

same item, different effect

Priced similarly

across the catalogue