SKU: 96283601872
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]
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SKU: 96283601872

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It was funny to get together. Fun moments. My grandfather whom forgot to look down, stepped on it, slid, and did the splits.. there was a little smudge haha. But— its been a year and I still love them.
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San Leandro, US
★★★★★ 5
Great home office dividers!
Size: 3-Panel
Needed something to create a home office that would stand on an uneven basement floor. These are the perfect solution! No prying eyes and only took me an hour to put up both sets by myself, pretty easy. They are completely opaque.
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Reviewed in the United States on August 26, 2025
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Excelente colchón es una ricura dormir lo recomiendo
Port Orchard, US
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Es fácil de armarlo y de utilizarlo adaptarlo a tu entorno
Size: 3-Panel, Size: 3-Panel
Es lo que necesitaba tal y cual como está en la foto
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Reviewed in the United States on April 28, 2026
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Jason Dusterwald
Chelsea, US
★★★★★ 4
Fine Simple Product, Works as Advertised
Size: 3-Panel
Performs as advertised, a simple upright divider. I use it to mark my "office" space when working from home. Assembly was straightforward and well documented. One person can do it, but a second person can be helpful when sliding the fabric divider pieces onto their poles. Part quality is fine for the price point. The only mild annoyance is that the upright poles can start getting loose from the metal feet, and need to be retightened occasionally (Allen wrench is included, keep it handy for retightening). It's fairly lightweight and easy to reposition, but the feet are heavy enough to keep it steady once placed. All in all, a good product. I was pleased enough to buy a second one when my son wanted something to block sunlight from behind his computer desk.
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Reviewed in the United States on August 18, 2025
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Sheila Cash
New York, US
★★★★★ 1
Wobbly and Poor Design
Size: 1-Panel
Update: nope! Not worth the money. My cat simply brushed against the divider, and it fell, knocking breakable things over. Not safe! It serves it's purpose, but...the screws were basically glued to the packaging. It took me longer to get the screws out of the packaging than it did to put it together. The assembly was easy. I am not mechanically inclined by any means, but the instructions, despite being very hard to read (I have over 40 eyes), were pretty simple. Structurally, it is very wobbly. I think they should have designed it with a middle rod to keep it more stable. I find that the attachments to the rods are wobbly and should have been screwed rather than popped into an attachment hole without reinforcement. That would have also made the room divider more stable. I have cats, but the material is easy to clean. I took a damp cloth to it, and it came right off. As far as see-through...I think it does a great job of masking theO other side of the room.. I just wish it was a little longer and closer to the floor stand. I like that it came with extra parts. It's just a very cheaply made item, and I don't think the price for the item reflects how cheaply it is made, how wobbly and unstable it is, or the poor design.
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Reviewed in the United States on March 15, 2025

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