£47.53

This is the most expensive it has ever been. Walk away.

£48 today · previous high £48 · all-time low £43

SW-Stahl 21550L Refractometer for Battery Density, Cooling Water, Windshield Wiper Fluid, Adblue Verification

Amazon

Price History & Forecast

Grey patches = out of stock. Cheaper = lower on the chart. Hover for exact prices.

Last 41 days · 41 data points (no recent data)

Historical
Generating forecast…
£47.53 £42.93 £43.94 £44.94 £45.94 £46.94 £47.95 02 August 2026 12 August 2026 22 August 2026 01 September 2026 11 September 2026
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Black, 21550L

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Price Distribution

Price distribution over 41 days • 2 price levels

Days at Price
Current Price
4 days 37 days · current 0 9 19 28 37 £43 £47 Days at Price

Price Analysis

Most common price: £47 (37 days, 90.2%)

Price range: £43 - £47

Price levels: 2 different prices over 41 days

Description
Refractometer For testing of battery acid density of 1.1 - 1.4 kg/L and cooling water content in Frost Protection from 0° / -50 °C and windshield wiper fluid from 0° / -40 °C. Also suitable for verifying the correct Mischungsverhältnisses for AdBlue additive. Complete in the box. - Adjustable eyepiece - Adjustable calibration device - Measurement accuracy + / - 5% Length: 215 mm

Key Features

Engine

Refractometer

Cooling system

Complete IN CASE

Product Specifications
Brand
SW-Stahl
Model
21550L
Colour
Black
Size
21,5 Cm X 8 Cm X 5,5 Cm
ASIN
B0068O6SKS
Category
Automotive > Oils & Fluids > Antifreeze & Coolants > Antifreeze for Cooling System
Domain
Amazon UK
Listed Since
07 March 2013

Barcode

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