SKU: 93010046317
tdr 100 soil moisture meter

tdr 100 soil moisture meter TDR Soil Moisture with Probes – Boston Instruments

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Description

tdr 100 soil moisture meter TDR Soil Moisture with Probes – Boston InstrumentsPrecise as a laboratory and as mobile as a cell phone. This TDR device measuring the soil moisture content, the soil conductivity EC, and the level of salt contamination can now be performed as fast and easy as never before! Within two seconds, the moisture content value, the temperature, and the soil conductivity EC are displayed on its clear display. The probes will report soil EC as standard simultaneously with soil moisture content percentage. The

Precise as a laboratory and as mobile as a cell phone.

This TDR device measuring the soil moisture content, the soil conductivity EC, and the level of salt contamination can now be performed as fast and easy as never before! Within two seconds, the moisture content value, the temperature, and the soil conductivity EC are displayed on its clear display.

  • The probes will report soil EC as standard simultaneously with soil moisture content percentage.
  • The probes measures conductivity with the same large soil volume as it will be used for the TDR moisture measurement.
  • It’s durable and waterproof construction ensures safe handling even under difficult environmental conditions.

Soil Moisture readings for top layers

Using a highly accurate TDR probe for:

  • Highly accurate TDR technology
  • Direct measurement of soil moisture content
  • Integrated soil temperature sensor
  • Soil electrical conductivity measurements
  • Large measurement volumes
  • User replaceable rods.

Benefits at a glance

  • Extremely robust and stable
  • Powerful battery for hundreds of measurements
  • Easy use with one hand via four buttons
  • High reliability even under challenging environmental conditions

Applications and advantages

  • Connected to the TDR is the two-rod probe
  • Based on radar technology
  • Handy two-rod probe with solid rods
  • Measurement via radar technology with an electromagnetic TDR impulse with 1 GHz to measure the water content precisely to material saturation
  • Display of measuring value within two seconds
  • Robust and watertight structure
  • Probe can be connected to a PC for data collection, change of operation mode or calibration
  • Delivery with a resistant hard shell case for trouble-free transport

Technical Specifications

Height

36mm

Width

64mm

Length

150mm

Weight

(with accumulator)

Power Consumption

Power Down

ca. 35μA

Idle

- Background Illum. OFF
- Background Illum. Max

ca. 26mA
ca. 56mA

Sonde eingeschaltet

ca. 100mA

Measurement

ca. 350 mA

Measurement per Charge

20°C / Background Illum. Max
Mode – Continuous Measurement

ca. 5000

Connectable Sensors

TDR tube access probe

Storage Temperature

-30°C up to 80°C

Operating Temperature

-20°C up to 70°C

Charging Temperature

10°C up to 30°C

Charging Voltage

Nom. 12V, Max. 15V, Min. 12V

Charging Current

ca. 1A

Charging Time

At exhaustively discharged accumulator. 2h

Accumulator

Ni-MH (4 x 1.2V) (AA), 2000mAh, >1500 Measurements

Physical BUS

RS485

Bus-Protocol

IMP-BUS-Protokoll II

IMP-Bus Port Settings

8 Data Bits, 2 Stopp Bits, Odd Parity

 

TDR Moisture Sensor Probe Technical Specifications:

Power supply:

7V..24V-DC

Power consumption:

100mA @ 12V/DC during 2..3 sec. of measuring

Moisture measuring range:

0..100% volumetric water content

Accuracy (in % volumetric water content):

conductivity range:

0..6dS/m

6..20dS/m

> 20dS/m

Moisture range 0..40%:

±1%

±2%

with material 
specific calibration

Moisture range 40..70%:

±2%

±3%

Repeating accuracy:

±0.2%

±0.3%

Temperature caused drift of electronics 
(full range):


±0.3%

Soil temperature measuring range:

-15°C...50°C

Soil temperature measuring accuracy:

±1,5°C absolute, ±0,5°C relative

Measurement volume:

1,25L ≙ 160x100mm diameter

Operating Temperature:

-15°C...50°C (extended temperature range on request)

Calibration:

Calibration for a wide range of standard soil types (in accordance with Topp (equation))

standard calibration for most soils
customizable material specific calibration
storage of up to 15 user defined calibration curves
calibration of dialectric permittivity is possible

Probe body:

waterproof sealed PVC

Size:

155 x Ø63mm

Rod length:

200mm

Rod diameter:

6mm

Interfaces:

IMP-BUS
RS485
Analogue output: 2x 0..1V, 0(4)..20mA*

 

Delivery within 2-45 business days.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 93010046317

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Chelsie
Whiting, US
★★★★★ 5
Best sunscreen ever!!!
This is the BEST SUNCREEN. It’s all we use-and I know, I know it’s expensive (standard is $30 a bottle) BUT it does go on sale quite often for like $20 ish which is what competitors run for and this is WAY cleaner. It’s made of a lot of organic ingredients and this one smells summery but they have unscented options too-that’s normally what I get! You can get spf 30 or 50 and they both work so well, never been burned wearing it. It’s a fine spray that goes on clear and dries quick-no white cast, no rubbing in. We live in a hot state that is sunny a lot of the year so we need a good sunscreen year round and this ticks all my boxes. This is the best product coola offers!! My entire family uses it.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 4, 2026
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Verified Purchase
Aundria Steinmetz
Whiting, US
★★★★★ 5
1000% you need!
I originally bought this for our Honduras vacation thinking it was basically just a facial sunscreen—and honestly, it performed amazingly for sun protection. It was the only product we used on our faces the entire trip, and my husband even used it on his bald head. We were outside in the sun for 10+ hours a day, applied it only twice daily, and neither of us burned. What I love most is how it feels on the skin: it’s very lightweight, not heavy at all, non-greasy, and it absorbs quickly. It doesn’t leave a film, doesn’t make your face shiny, and it worked well for both of us—my husband with normal skin and me with an oily T-zone. Overall, I highly recommend it. Just keep in mind to use it as intended and follow proper sun-protection directions.
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Reviewed in the United States on May 23, 2026
A
Verified Purchase
Andrea Aragon
Grantham, US
★★★★★ 5
Good product!
Very luxurious ,light, I wear it on my arms bench and chest I feel moisturized not greasy
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Reviewed in the United States on May 25, 2026
I
Verified Purchase
I.J.S
West Palm Beach, US
★★★★★ 5
Great value for the money
Okay I was very skeptical of this product but I love it! I have used several product lines in the past and the dollar amount for what this is is a great value compared to what I have invested in in the past. I have mature skin and my skin is very dry because I live in the desert. I plan on keeping this as a go-to product for all my needs to help with the dryness of my skin and the bonus is that it does not smell horrible it actually smells really great
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Reviewed in the United States on April 3, 2026
B
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Betsy E Gallagher
Draper, US
★★★★★ 5
luxury face cream
This is the best facecream/ sun lotion I have ever had!
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Reviewed in the United States on May 11, 2026

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