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POL Propane Gas Gauge Meter Tank Built-in Leak Detector Universal for QCC1 E5M1 Pressure Gauges Meter Gauge Manometer Fuel 1/2pc
Aliexpress UK
This 4-in-1 key features a triangle key, circle key, small square key, and large square key.
eBay
LZQ-7 3/5/10/15/20LPM Air Flow Meter Gas Flowmeter Indicator with Control Valve Adjustable for Oxygen Conectrator Height 12cm
Aliexpress UK
Style Box,Compact,Round,Triangle,Triangular. Colour Silver. 5.2 cm x 8.2 cm x 1.3 cm. Weight: 10.0 oz. Head Style Box End, Round. Head style Box End, Round. Certain restrictions apply. An adult signature will be required.
eBay
Pressure Reducer Relief for Valve 0-25Mpa Argon Regulator CO2 Mig Tig Meter Gas Regulators Flowmeter Welding Weld Dropship
Aliexpress UK
✔ 1x 4-Way Utility Multi Cross Key. ✔Universal Compatibility – Fits most UK standard service cabinets and utility boxes. ✔Compact & Lightweight – Easy to carry in a pocket, toolbox, or keychain. 🔑Key Features.
eBay
100V Liquid level sensor water level control float level switch Water flow switch Level sensor for Water Meter Gas Meter Water H
Aliexpress UK
Has a hole so it can be attached either to a keyring or cord for safe keeping. Made of durable strong plastic.
eBay
8in1 Air Quality Tester CO2 Meter Gas Analyzer CO2 Sensor TVOC Meter Carbon Dioxide Sensor Temperature Humidity Measuring Device
Aliexpress UK
Gas Meter Box Key / Electric Meter Box KeyStrong cast metalWon't shear in winter like plastic onesExtra long design for hard to reach areasTriangle shaped cut outFits convential meter box cupboardsOverall length of key is 90mmLength to the start of the handle is 70mmTriangle dimentions 10mm x 10mm x 10mm.
eBay
Moray ME204R Gateway Gas Tank Indoor Temperature Meter Gauge Bottle Propane Butane LPG Tank Level Sensor
Aliexpress UK
It adopts a T-shaped design, which can help you save effort and complete work efficiently. The Triangle socket key is small, exquisite and light in weight.
eBay
1pc 4-in-1 Key Wrench Multi purpose Electric Control Cabinet Triangle Key Wrench Elevator Water Meter Valve Square Hole Key
Aliexpress UK
Triangle shaped cut out.
eBay
1PCS Single Inner Triangular Key Elevator Key Inside Triangle Water Meter Valve Key
Aliexpress UK