Choosing a temperature probe
- Flexible Teflon microprobes are used for implantation in tissue, in spectrophotometer cuvettes, rectally in neonatal mice, in water baths, PCR thermal cyclers, etc.
- Animal rectal temperatures during surgical procedures and pyrogen testing.
- Skin temperature measurement during exercise physiology studies.
When precise temperature measurements are required, WPI can provide you with a very accurate monitor and thermocouple microprobes. WPI monitors have both resolution and accuracy of 0.1°C in the 0-50°C range and are traceable to NIST standards, whereas, other competitive electronic thermometers have an accuracy that is usually to 0.5°C or worse. Furthermore, all our type T clinical probes are guaranteed accurate to 0.1°C, due to our stringent wire standards. These are five times more accurate than competitive probes made with regular “Special Limits” wire.
Probe Sterilization Methods:
The needle microprobes and animal rectal probes are all designed to withstand sterilization by ETO?gas and gluteraldehyde solution. Our flexible implantable microprobes are both ETO gas sterilizable and autoclavable.
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NEEDLE MICROPROBES
Fast-response needle probes for instant readings in tissue, semisolids, liquids, very small specimens, powders and materials. Needle tip is sealed to ensure only stainless steel contacts specimen.
| ORDER CODE | SIZE | STYLE | TIME CONSTANT | ISOLATED | MAX TEMP | LEAD LENGTH | DESCRIPTION |
|---|---|---|---|---|---|---|---|
| MT-29/1HT | 29 ga/1cm | A | 0.125 sec | No | 200°C | 5 ft | 29 gauge approximately 0.013-in |
| MT-29/2 | 29 ga/2cm | A | 0.125 sec | No | 200°C | 5 ft | - |
| MT-29/3 | 29 ga/3cm | A | 0.125 sec | No | 200°C | 5 ft | - |
| MT-29/5 | 29 ga/5cm | A | 0.125 sec | No | 200°C | 5 ft | - |
| MT-26/2 | 26 ga/2cm | A | 0.1 sec | No | 200°C | 5 ft | 26 gauge approximately 0.018-in |
| MT-26/4 | 26 ga/4cm | A | 0.1 sec | No | 200°C | 5 ft | - |
| MT-26/6 | 26 ga/6cm | A | 0.1 sec | No | 200°C | 5 ft | - |
| MT-23/3 | 23 ga/3cm | A | 0.15 sec | No | 200°C | 5 ft | 23 gauge approximately 0.125-in |
| MT-23/5 | 23 ga/5cm | A | 0.15 sec | No | 200°C | 5 ft | - |
| MT-23/8 | 23 ga/8cm | A | 0.15 sec | No | 200°C | 5 ft | - |
| MT-4 | 29 ga/1cm | A | 0.025 sec | No | 200°C | 5 ft | Similar to MT-29/1 but has a blunt tip. Good for instant skin and surface temperatures, liquids |
| MT-D | - | C | 0.025 sec | No | 200°C | 5 ft | Fast response surface probe (stainless steel for locating inflammation, arteries, etc. Also for dental use. |
FLEXIBLE IMPLANTABLE PROBES
Designed for high accuracy on extremely small specimens such as insects, seeds, etc. Maximum insertion depth 1/8". Totally sheathed in chemical resistant Teflon.
| ORDER CODE | SENSOR LEAD DIAMETER | STYLE | TIME CONSTANT | ISOLATED | MAX TEMP | LEAD LENGTH | DESCRIPTION | |
|---|---|---|---|---|---|---|---|---|
| IT-14 | 0.050" dia | D | 0.3 sec | Yes | 150°C | 3 ft | - | |
| IT-18 | 0.025" dia | D | 0.1 sec | Yes | 150°C | 3 ft | - | |
| IT-18EXLONG | 0.025” dia. | D | - | Yes | 150°C | 5 ft | ||
| IT-21 | 0.016" dia | D | 0.08 sec | Yes | 150°C | 1 ft | ||
| IT-23 | 0.009" dia | E | 0.005 sec | Yes | 150°C | 3 ft | For ultra fast measurements and for use on micro-size specimens. Tissue implantable with 239a. Needle (supplied). Rather fragile. Teflon coated. | |
| IT-1E | 0.025" dia | F | 0.005 sec | Yes | 150°C | 3 ft | As IT-18 sensor except bead exposed. Combines ultra- fast reponse of IT-23 with sheath strength of IT-18. | |
| RECTAL PROBES | ||||||||
| PROBE TYPE | SENSOR LEAD DIAMETER | STYLE | TIME CONSTANT | ISOLATED | MAX TEMP | LEAD LENGTH | DESCRIPTION | |
| RET-2 | - | G | 0.8 sec | No | 125°C | 5 ft | Rectal probe for rats typically for fast intermittent measurements. Smooth ball tip (0.125-in. dia.) with 1" long (0.59-in. dia) stainless steel shaft. | |
| RET-3 | - | G | 0.5 sec | No | 125°C | 5 ft | Rectal probe for mice similar to RET-2 except tip diam. 0.063-in. and shaft 3/4-in. long (0.028-in. diam.) | |
GENERAL PURPOSE
| ORDER CODE | STYLE | TIME CONSTANT | ISOLATED | MAX TEMP | LEAD LENGTH | DESCRIPTION | |
|---|---|---|---|---|---|---|---|
| HT-1 | H | 0.5 sec | No | 400°C | 5 ft | “Workhorse” probe for liquids, gases, semi-solids. Plastic handle with straight stainless steel shaft. Not good for surface temperatures. | |
| HT-2 | H | 0.5 sec | No | 400°C | 5 ft | Like HT-1 except shaft length is 9-in. | |
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