£50.75

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

£51 today · previous high £51 · all-time low £49

Kemo M173 soil humidity sensor, soil moisture sensor

Amazon

Price History & Forecast

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

Last 25 days · 25 data points (no recent data)

Historical
Generating forecast…
£50.75 £48.33 £48.86 £49.39 £49.91 £50.44 £50.97 18 July 2026 24 July 2026 30 July 2026 05 August 2026 11 August 2026
View at Amazon ↗

Black, M173

Price data last checked 66 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 25 days • 2 price levels

Days at Price
Current Price
4 days 21 days · current 0 5 11 16 21 £49 £51 Days at Price

Price Analysis

Most common price: £51 (21 days, 84.0%)

Price range: £49 - £51

Price levels: 2 different prices over 25 days

Description
This sensor switches your garden irrigation pump or the magnetic valve on when the soil is dry and switches off when there is enough humidity in the soil. The measuring head has to be buried into the ground at the depth where it shall measure and has to be connected with the basic device via a cable. Approx. 2 m of cable are included, the sensor cable may, however, be prolonged up to 20 m with normal 2-pole cable. The device is operated by means of a commercial plug power supply (12 V/DC stabilized, > 130 mA, jack plug 3.5 mm). If the garden shall be irrigated at certain times of the day or weekdays only, then please put a commercial timer before the plug power supply and program it accordingly. The soil humidity sensor starts to operate when it receives current from the power supply. Operation sequence: The soil humidity is measured after switching on the operating voltage. The connected pump is switched on for 18...30 minutes if the soil is too dry. If the soil is humid enough the device switches to „Pause“ for about 18 - 30 minutes and makes a new measurement after that. This continues as infinite loop until the operating voltage is switched off.

Key Features

SUPPLIED WITH UK POWER ADAPTOR

12vdc safe operating voltage

Supplied with sensor & probes

3 amp switching relay for operating small pumps etc.

Product Specifications
Brand
Kemo
Model
M173
Colour
Black
Size
72 X 50 X 28mm
ASIN
B0030YW010
Category
DIY & Tools > Power, Garden & Hand Tools > Power Tool Accessories > Cordless Tool Accessories
Domain
Amazon UK
Listed Since
27 July 2011

Barcode

No barcode data available

Similar Products You Might Like

TLLTKOK 3-in-1 Soil Moisture and pH Tester Meter
97% match

TLLTKOK 3-in-1 Soil Moisture and pH Tester Meter

TLLTKOK

£8.43 14 Jul 2026
TRJZWA 5-in-1 Soil Moisture Meter - pH and Light Tester
97% match

TRJZWA 5-in-1 Soil Moisture Meter - pH and Light Tester

TRJZWA

£19.99 14 Jul 2026
Yizerel 2 Pack Soil Moisture Meter - Plant Water Tester Kit
96% match

Yizerel 2 Pack Soil Moisture Meter - Plant Water Tester Kit

Yizerel

£8.49 30 Jul 2026
flintronic Soil Moisture Meter 2-Pack - Accurate Garden Tester
96% match

flintronic Soil Moisture Meter 2-Pack - Accurate Garden Tester

flintronic

£8.99 01 Oct 2026
XLUX Soil Moisture Meter - Plant Water Monitor for Gardening
96% match

XLUX Soil Moisture Meter - Plant Water Monitor for Gardening

XLUX

£8.49 15 May 2026
Mcbazel 3-in-1 Digital Soil Meter - pH, Moisture, Temp
96% match

Mcbazel 3-in-1 Digital Soil Meter - pH, Moisture, Temp

Mcbazel

£11.04 04 Sep 2026
Antonki 2 Pack Plant Water Meter - Soil Moisture Tester
96% match

Antonki 2 Pack Plant Water Meter - Soil Moisture Tester

Antonki

£9.97 31 Jul 2026
shaohui Soil Moisture Meter - Precision Garden Plant Tester
96% match

shaohui Soil Moisture Meter - Precision Garden Plant Tester

shaohui

Price unavailable
XLUX Soil Moisture Meter - 2 Pack Plant Water Monitor
96% match

XLUX Soil Moisture Meter - 2 Pack Plant Water Monitor

XLUX

Price unavailable
XLUX Long Probe Plant Soil Moisture Meter - Battery-Free
96% match

XLUX Long Probe Plant Soil Moisture Meter - Battery-Free

XLUX

£12.98 02 Sep 2026
Gardena Soil Moisture Sensor - Automatic Irrigation Control
96% match

Gardena Soil Moisture Sensor - Automatic Irrigation Control

Gardena

£40.01 25 Aug 2026
dnt Soil Moisture Sensor for WeatherScreen PRO, DNT000019
96% match

dnt Soil Moisture Sensor for WeatherScreen PRO, DNT000019

DNT

£55.32 12 Aug 2026
YAMRON 4-in-1 Digital Soil Moisture and pH Meter
96% match

YAMRON 4-in-1 Digital Soil Moisture and pH Meter

YAMRON

£21.98 02 Sep 2026
YAMRON 5-in-1 Digital Soil Moisture and pH Meter
96% match

YAMRON 5-in-1 Digital Soil Moisture and pH Meter

YAMRON

£23.98 14 Jul 2026
Hunter NL138 Soil Click Humidity Sensor
96% match

Hunter NL138 Soil Click Humidity Sensor

Hunter

Price unavailable
YAMRON 7-in-1 Digital Soil Moisture Meter - LCD Backlight
96% match

YAMRON 7-in-1 Digital Soil Moisture Meter - LCD Backlight

YAMRON

£26.99 14 Jul 2026
Gardena Smart Irrigation Control Sensor Set - Multi-Channel
96% match

Gardena Smart Irrigation Control Sensor Set - Multi-Channel

Gardena

£295.99 30 Aug 2026
flintronic 4-in-1 Soil Tester - PH, Moisture, Light & Temp
96% match

flintronic 4-in-1 Soil Tester - PH, Moisture, Light & Temp

flintronic

Price unavailable
Extech MO750 Soil Moisture Meter - 0-50% Measurement
95% match

Extech MO750 Soil Moisture Meter - 0-50% Measurement

Extech

£282.99 14 Sep 2026
THIRDREALITY Smart Soil Moisture Sensor - Zigbee Garden Meter
95% match

THIRDREALITY Smart Soil Moisture Sensor - Zigbee Garden Meter

THIRDREALITY

Price unavailable
Suplong Soil Moisture Meter - Plant Water Meter for Garden
95% match

Suplong Soil Moisture Meter - Plant Water Meter for Garden

Suplong

£9.99 14 Jul 2026
Saline and Alkaline Soils in Latin America: Natural Resources, Management and Productive Alternatives
95% match

Saline and Alkaline Soils in Latin America: Natural Resources, Management and Productive Alternatives

Springer

£89.99 13 Sep 2026
Saline and Alkaline Soils in Latin America: Natural Resources, Management and Productive Alternatives
95% match

Saline and Alkaline Soils in Latin America: Natural Resources, Management and Productive Alternatives

Springer

£86.29 01 Oct 2026
Sonkir MS02 3-in-1 Soil pH, Moisture and Light Meter
95% match

Sonkir MS02 3-in-1 Soil pH, Moisture and Light Meter

Sonkir

£9.99 26 Aug 2026