Thermometer comparison

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This is an alphabetically ordered table of various thermometers, i.e. temperature loggers with PC connectivity via USB, RS232, and so on. We do not list devices without PC logging functionality, as those are not really useful for sigrok.

This page lists commercial and non-commercial devices with a short overview of their capabilities. We list all kinds of devices here, not only those supported by sigrok.

You should not use the information here as the sole source for any buying decisions, this is just meant for informational purposes. Please carefully check the vendor websites if you intend to buy any hardware.

Device Type Measured quantities PC interface PC interface chip PC protocol Architecture/chip Live
acq.
Memory
(#records)
Resources Price
Center 304 Note 4 handheld 4x temperature RS232 9600/8n1 custom  ? yes  ? $162
Center 309Note 5 handheld 4x temperature RS232 9600/8n1 custom  ? yes 64000 (16000/ch) 1 $253
CEM DT-171Note 1 USB dongle 1x temperature, 1x humidity USB  ?  ?  ?  ? 32000 (16000/ch)  ?  ?
CEM DT-171Note 2 USB dongle 1x temperature, 1x humidity USB  ?  ?  ?  ? 32000 (16000/ch)  ?  ?
CEM DT-172Note 3 handheld 1x temperature, 1x humidity USB  ?  ?  ?  ? 32000 (16000/ch)  ?  ?
Dostmann TC309Note 5 handheld 4x temperature RS232 9600/8n1 custom  ? yes 64000 (16000/ch) 1, 2 €185
FreeTec NC7004 USB dongle temperature, humidity USB  ?  ?  ?  ? 16320 Driver  ?
General DT304 Note 4 handheld 4x temperature RS232 9600/8n1 custom  ? yes  ? $179
General DT309DLNote 5 handheld 4x temperature RS232 9600/8n1 custom  ? yes 64000 (16000/ch) 1 $251
Lufft OPUS 10 THI handheld 1x temperature, 1x humidity RS232  ?  ?  ?  ? 120000 1 €357
Omega HH309Note 5 handheld 4x temperature RS232 9600/8n1 custom  ? yes 64000 (16000/ch) 1, 2, SW  ?
Omega HH309ANote 5 handheld 4x temperature RS232 9600/8n1 custom  ? yes 64000 (16000/ch) 1, 2, SW €185
PeakTech 4955 handheld IR-video-/type-K-temperature, humidity, dew point temp. USB  ?  ?  ?  ? 72MByte  ?  ?
Pyle PTHDL150 USB dongle 1x temperature, 1x humidity USB  ?  ?  ?  ? 32000 (16000/ch)  ? $151
RDing TEMPer USB dongle 1x temperature USB/HID Tenx TMU3101MS custom Fairchild FM75 yes  ?  ?
RDing TEMPer Gold USB dongle 1x temperature USB/HID  ? custom NXP LM75A yes  ?  ?
RDing TEMPer1 USB dongle 1x temperature USB/HID  ? custom  ? yes  ?  ?
RDing TEMPer1K2 USB dongle 1x temperature USB/HID  ? custom  ? yes  ?  ?
Sper Scientific 800023 Note 4 handheld 4x temperature RS232 9600/8n1 custom  ? yes 1 $172
Sper Scientific 800024Note 5 handheld 4x temperature RS232 9600/8n1 custom  ? yes 64000 (16000/ch) 1 $298
Tecpel DTM-319Note 5 handheld 4x temperature RS232 9600/8n1 custom  ? yes 64000 (16000/ch) 1, FAQ, 2, 3 €145
Voltcraft DL-120THNote 1 USB dongle 1x temperature, 1x humidity USB SiLabs F321  ? Sensirion SHT*  ? 32000 (16000/ch)  ?  ?
Voltcraft DL-121THNote 2 USB dongle 1x temperature, 1x humidity USB  ?  ?  ?  ? 32000 (16000/ch) SW €73
Voltcraft DL-140THNote 3 handheld 1x temperature, 1x humidity USB/serial SiLabs CP2102  ? TI M430F427, Sensirion SHT*  ? 32700  ?  ?
Voltcraft K204 (cheap)Note 4 handheld 4x temperature RS232 9600/8n1 custom  ? yes list €114
Voltcraft K204 (expensive)Note 5 handheld 4x temperature RS232 9600/8n1 custom  ? yes 64000 (16000/ch) list €213
Voltcraft PL-125-T2USB handheld 2x temperature USB/serial SiLabs CP2102  ? SiLabs C8051F340 no 36000 (18000/ch)  ? €69
Voltcraft IR1000-50CAM handheld 1x temperature (IR), 1x humidity USB/mass-storage  ?  ?  ? 49MByte 1 €349
UNI-T UT325 handheld 2x temperature USB  ?  ?  ?  ? 100 1, 2 £49

Notes:

1 Voltcraft DL-120TH = CEM DT-171.
2 Voltcraft DL-121TH = CEM DT-171 (?)
3 Voltcraft DL-140TH = CEM DT-172.
4 Voltcraft K204 (cheap version) = Center 304 = Sper Scientific 800023 = General DT304.
5 Voltcraft K204 (expensive version) = Center 309 = Sper Scientific 800024 = Tecpel DTM-319 = General DT309DL = Dostmann TC309 = Omega HH309 = Omega HH309A.