£358.80

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

£359 today · previous high £359 · all-time low £273

Extech SDL400 Light Meter - SD Card Datalogger to 100kLux

Amazon

Price History & Forecast

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

Last 31 days · 31 data points (no recent data)

Historical
Generating forecast…
£358.80 £264.41 £285.00 £305.60 £326.19 £346.79 £367.38 26 July 2026 02 August 2026 10 August 2026 17 August 2026 25 August 2026
View at Amazon ↗

SDL400

Price data last checked 60 day(s) ago - refreshing...

NEW HERE?

Amazon shows you one price. We show you all of them.

Tosheroon watches Amazon prices so you don't have to. Every product on Amazon has a price history — we make it visible. Set the price you'd actually pay, and we'll email you the second it gets there. No app, no account, one email.

WHAT'S ON THIS PAGE

↑ Price chart
when this has been cheap or pricey
↑ Forecast
where the price is heading next
↓ Statistics
all-time high & low, recent range
↑ Price alert
name your number, we'll email you

Price Distribution

Price distribution over 31 days • 3 price levels

Days at Price
Current Price
4 days 19 days 8 days · current 0 5 10 14 19 £273 £307 £359 Days at Price

Price Analysis

Most common price: £307 (19 days, 61.3%)

Price range: £273 - £359

Price levels: 3 different prices over 31 days

Description

The Extech SDL400 Light Meter provides professional-grade illumination measurement and data logging capabilities in one versatile tool. Designed for accuracy, it utilizes a precision silicon photo diode and a spectral response filter to deliver cosine and color-corrected measurements. This device is ideal for users needing to track light levels over time, as it records data directly to an SD card in a convenient Excel format. With a wide measurement range reaching up to 10,000Fc or 100kLux, this meter handles various lighting environments with ease. It offers advanced data management features, including an adjustable sampling rate and the ability to store 20 million readings via a 2GB SD card. Beyond light measurement, the SDL400 includes a Type K/J thermocouple input for high temperature readings, making it a multi-functional asset for your toolkit. The large backlit LCD ensures clear visibility in different lighting conditions, while the built-in PC interface simplifies data transfer for analysis.

Key Features

Wide measurement range up to 10,000Fc or 100kLux for versatile lighting analysis.

Records data to an SD card in Excel format for easy digital documentation and analysis.

Precision silicon photo diode and spectral response filter ensure color-corrected measurements.

High capacity storage allows for 20 million readings using a 2GB SD card.

Includes Type K/J thermocouple input to perform high temperature measurements.

Large backlit LCD display provides clear reading visibility in various environments.

Adjustable data sampling rate and offset adjustment for customized relative measurements.

Product Specifications

Brand
Extech
Model
SDL400
Domain
Amazon UK
Release Date
12 February 2015
Listed Since
21 March 2012

Barcode

No barcode data available

Similar Products You Might Like

Extech LT40 White LED Light Meter, Lux and Foot Candle, 4000 Count
96% match

Extech LT40 White LED Light Meter, Lux and Foot Candle, 4000 Count

Extech

£106.62 21 Aug 2026
Extech 407026 Heavy Duty Light Meter, Lux/Foot-Candle, RS-232, 4 Modes
96% match

Extech 407026 Heavy Duty Light Meter, Lux/Foot-Candle, RS-232, 4 Modes

Extech

£241.97 21 Aug 2026
Extech EA30 EasyView Light Meter - 40000 Fc / 400000 Lux
96% match

Extech EA30 EasyView Light Meter - 40000 Fc / 400000 Lux

Extech

£224.12 21 Aug 2026
Martindale LM192 Light Meter
96% match

Martindale LM192 Light Meter

Martindale

£147.50 23 Aug 2026
Martindale LM195 LED Light Meter
95% match

Martindale LM195 LED Light Meter

Martindale

£248.60 11 Sep 2026
Digital Luxometer with LCD Display, Measuring Range 0-200,000 lx, Accuracy ±3%, Ideal for Measuring Lighting in Spaces and Crops.
95% match

Digital Luxometer with LCD Display, Measuring Range 0-200,000 lx, Accuracy ±3%, Ideal for Measuring Lighting in Spaces and Crops.

Brightium

£57.10 26 Aug 2026
Cullmann CUlight V 390DL LED Video Light - Black
95% match

Cullmann CUlight V 390DL LED Video Light - Black

CULLMANN

£82.31 11 Aug 2026
TFA LM37 'Schwarz' Luxmeter Illuminance Meter
95% match

TFA LM37 'Schwarz' Luxmeter Illuminance Meter

TFA

£74.68 18 Oct 2026
Knightsbridge BT EVO LED Bulkhead - IP65 Emergency Sensor Light
95% match

Knightsbridge BT EVO LED Bulkhead - IP65 Emergency Sensor Light

Knightsbridge

£56.99 03 Sep 2026
Extech LT300 Digital Light Meter - Remote Sensor & Peak Mode
95% match

Extech LT300 Digital Light Meter - Remote Sensor & Peak Mode

Extech

£144.60 25 Aug 2026
Peaktech 5086 Digital LED Lux Meter 3 3/4 Digit
95% match

Peaktech 5086 Digital LED Lux Meter 3 3/4 Digit

PeakTech

£86.30 19 Oct 2026
Extech LT250W Wireless Light Meter - ExView App Lux/FC
95% match

Extech LT250W Wireless Light Meter - ExView App Lux/FC

Extech

£99.26 19 Aug 2026
Solid State Lighting Reliability: Components to Systems: 1 (Solid State Lighting Technology and Application Series, 1)
95% match

Solid State Lighting Reliability: Components to Systems: 1 (Solid State Lighting Technology and Application Series, 1)

Springer

£145.55 02 Oct 2026
Handbook of Advanced Lighting Technology
95% match

Handbook of Advanced Lighting Technology

Springer

£572.93 15 Aug 2026
Wiley Architectural Lighting Design - 3rd Edition Guide
95% match

Wiley Architectural Lighting Design - 3rd Edition Guide

Wiley

£77.95 19 Aug 2026
VTHW SAD Lamp 10,000 Lux - Light Therapy with Timer & Memory
95% match

VTHW SAD Lamp 10,000 Lux - Light Therapy with Timer & Memory

VTHW

£25.99 30 Jul 2026
TENMA Digital Light Meter – 400,000 Lux/Foot Candle Range with Bar Graph Display & Integral Sensor – TEN01070
95% match

TENMA Digital Light Meter – 400,000 Lux/Foot Candle Range with Bar Graph Display & Integral Sensor – TEN01070

TENMA

£72.95 21 Oct 2026
Knightsbridge 230V IP65 IK08 4ft Selectable 19W/37W CCT Adjustable Emergency Non-Corrosive
95% match

Knightsbridge 230V IP65 IK08 4ft Selectable 19W/37W CCT Adjustable Emergency Non-Corrosive

Knightsbridge

£67.31 14 Oct 2026
Knightsbridge 230V IP65 IK08 4ft Selectable 19W/37W CCT Adjustable Microwave ST Emergency Non-Corrosive
95% match

Knightsbridge 230V IP65 IK08 4ft Selectable 19W/37W CCT Adjustable Microwave ST Emergency Non-Corrosive

Knightsbridge

£71.12 04 Sep 2026
SLV 1er QRB MODUL for AIXLIGHT Pendant System, Silvergrey, max. 100W, cardanic, 60°, Aluminium
95% match

SLV 1er QRB MODUL for AIXLIGHT Pendant System, Silvergrey, max. 100W, cardanic, 60°, Aluminium

SLV

£79.90 30 Sep 2026
Extech EA33 EasyView Light Meter - 99990Fc/999900Lux Memory
95% match

Extech EA33 EasyView Light Meter - 99990Fc/999900Lux Memory

Extech

£302.99 17 Sep 2026
Extech 401025 Light Meter - 50,000 Lux / 5,000 FC Dual Display
95% match

Extech 401025 Light Meter - 50,000 Lux / 5,000 FC Dual Display

Extech

£202.80 26 Aug 2026
OSRAM Electronic Control Gears (ECG), QUICKTRONIC Intelligent DALI DIM T5, ECG LL 16mm DIM DALI, QTIDALI 2X35/49/80/220-240 DIM
95% match

OSRAM Electronic Control Gears (ECG), QUICKTRONIC Intelligent DALI DIM T5, ECG LL 16mm DIM DALI, QTIDALI 2X35/49/80/220-240 DIM

OSRAM

£53.57 14 Oct 2026
Knightsbridge 4FT LED Batten - 19W/37W CCT + EMG_ST
95% match

Knightsbridge 4FT LED Batten - 19W/37W CCT + EMG_ST

Knightsbridge

Price unavailable