Skip to content
Use MERRYXMAS8 Code and Enjoy 8% OFF on Orders $99+ Valid Till 12/26
Use MERRYXMAS8 Code and Enjoy 8% OFF on Orders $99+ Valid Till 12/26

$500 and Above

$500 and Above – Premium Weather Instruments & Stations

Discover our top-tier weather gear in the “$500 and Above” collection — a curated selection of premium weather stations, high-precision instruments, and professional-grade tools built for serious enthusiasts, storm trackers, marine users, researchers, or anyone serious about monitoring the atmosphere.

These are not your average thermometers or rain gauges — here you’ll find sophisticated weather stations with multiple sensors, finely crafted analog instruments, durable wind & tide gauges, lightning detectors, high-altitude balloon kits, and more. Every item is chosen for accuracy, durability, and long-term reliability, from polished brass tide clocks and marine-grade barometers to wind meters capable of delivering detailed trend data.

Whether you’re upgrading a home weather setup, outfitting a marine vessel, building a standalone data-collection station, or giving a gift meant to last decades — this collection represents the best in weather instrumentation. Premium materials, precise mechanics or electronics, and comprehensive environmental sensing set these products apart as professional-class gear.

For those who demand real data, real performance, and real craftsmanship — the “$500 and Above” collection delivers.

Filters

$
$
Weather Scientific Comet Multilogger - thermo-hygro-CO2 meter with four inputs, up to 10 000ppm CO2 Comet
Weather Scientific Comet Multilogger - thermo-hygro-CO2 meter with four inputs, up to 10 000ppm CO2 Comet

Comet Multilogger - thermo-hygro-CO2 meter with four inputs, up to 10 000ppm CO2

$1,250.00 - $1,250.00
$1,250.00
$1,250.00 - $1,250.00
$1,250.00
In stock

Comet Multilogger - thermo-hygro-CO2 meter with four inputs, up to 10 000ppm CO2 Battery powered datalogger for external CO2 probe up to 10 000ppm ...

View full details
$1,250.00 - $1,250.00
$1,250.00
$1,250.00 - $1,250.00
$1,250.00
Weather Scientific Comet WebSensor - remote CO2 concentration with Ethernet interface Comet
Weather Scientific Comet WebSensor - remote CO2 concentration with Ethernet interface Comet

Comet WebSensor - remote CO2 concentration with Ethernet interface

$1,308.00 - $1,308.00
$1,308.00
$1,308.00 - $1,308.00
$1,308.00
In stock

Comet WebSensor - remote CO2 concentration with Ethernet interface CO2 - carbon dioxide t-line Web sensor. Remote alarm.Web Sensor with CO2 probe o...

View full details
$1,308.00 - $1,308.00
$1,308.00
$1,308.00 - $1,308.00
$1,308.00
Weather Scientific Comet Ethernet Multilogger - thermo-hygro-CO2 meter with 2 MiniDIN and 2 Terminals Comet
Weather Scientific Comet Ethernet Multilogger - thermo-hygro-CO2 meter with 2 MiniDIN and 2 Terminals Comet

Comet Ethernet Multilogger - thermo-hygro-CO2 meter with 2 MiniDIN and 2 Terminals

$1,344.00 - $1,344.00
$1,344.00
$1,344.00 - $1,344.00
$1,344.00
In stock

Comet Ethernet Multilogger - thermo-hygro-CO2 meter with 2 MiniDIN and 2 Terminals Battery powered datalogger with built-in CO2 sensor and 4 univer...

View full details
$1,344.00 - $1,344.00
$1,344.00
$1,344.00 - $1,344.00
$1,344.00
Weather Scientific Comet CO2 Concentration and Temperature Transmitter with 0-10V outputs, built-in sensors Comet

Comet CO2 Concentration and Temperature Transmitter with 0-10V outputs, built-in sensors

$536.00 - $536.00
$536.00
$536.00 - $536.00
$536.00
In stock

Comet CO2 concentration and temperature transmitter with 0-10V outputs, built-in sensors CO2 - carbon dioxide level and temperature sensor.CO2 conc...

View full details
$536.00 - $536.00
$536.00
$536.00 - $536.00
$536.00
Weather Scientific Comet CO2 Concentration and Temperature Transmitter with 4-20mA outputs, built-in sensors Comet

Comet CO2 Concentration and Temperature Transmitter with 4-20mA outputs, built-in sensors

$536.00 - $536.00
$536.00
$536.00 - $536.00
$536.00
In stock

Comet CO2 concentration and temperature transmitter with 4-20mA outputs, built-in sensors CO2 - carbon dioxide level and temperature sensor.CO2 con...

View full details
$536.00 - $536.00
$536.00
$536.00 - $536.00
$536.00
Weather Scientific Comet CO2 Concentration and Temperature transmitter with RS485 output, built-in sensors Comet

Comet CO2 Concentration and Temperature transmitter with RS485 output, built-in sensors

$678.00 - $678.00
$678.00
$678.00 - $678.00
$678.00
In stock

Comet CO2 concentration and temperature transmitter with RS485 output, built-in sensors CO2 - carbon dioxide level and temperature sensor.CO2 conce...

View full details
$678.00 - $678.00
$678.00
$678.00 - $678.00
$678.00
Weather Scientific Comet CO2 Concentration Thermometer Hygrometer with RS485 interface, duct mount Comet

Comet CO2 Concentration Thermometer Hygrometer with RS485 interface, duct mount

$791.00 - $791.00
$791.00
$791.00 - $791.00
$791.00
In stock

Comet CO2 concentration transmitter with 0-10V output, built-in carbon dioxide sensor Duct mount CO2 concentration t-line WebSensor.Transmitter wit...

View full details
$791.00 - $791.00
$791.00
$791.00 - $791.00
$791.00
Weather Scientific Comet CO2 Concentration Transmitter with 0-10V output, built-in carbon dioxide sensor Comet
Weather Scientific Comet CO2 Concentration Transmitter with 0-10V output, built-in carbon dioxide sensor Comet

Comet CO2 Concentration Transmitter with 0-10V output, built-in carbon dioxide sensor

$520.00 - $520.00
$520.00
$520.00 - $520.00
$520.00
In stock

Comet CO2 concentration transmitter with 0-10V output, built-in carbon dioxide sensor Duct mount CO2 concentration transmitter with 0-10 V output.G...

View full details
$520.00 - $520.00
$520.00
$520.00 - $520.00
$520.00
Weather Scientific Comet CO2 Concentration Transmitter with 0-10V output, built-in carbon dioxide sensor Comet

Comet CO2 Concentration Transmitter with 0-10V output, built-in carbon dioxide sensor

$499.00 - $499.00
$499.00
$499.00 - $499.00
$499.00
In stock

Comet CO2 concentration transmitter with 0-10V output, built-in carbon dioxide sensor CO2 - carbon dioxide level sensor.CO2 concentration transmitt...

View full details
$499.00 - $499.00
$499.00
$499.00 - $499.00
$499.00
Weather Scientific Comet CO2 Concentration Transmitter with 0-10V output, external carbon dioxide probe, 1m cable Comet

Comet CO2 Concentration Transmitter with 0-10V output, external carbon dioxide probe, 1m cable

$1,234.00 - $1,234.00
$1,234.00
$1,234.00 - $1,234.00
$1,234.00
In stock

Comet CO2 concentration transmitter with 0-10V output, external carbon dioxide probe, 1m cable CO2 - carbon dioxide level sensor.CO2 concentration ...

View full details
$1,234.00 - $1,234.00
$1,234.00
$1,234.00 - $1,234.00
$1,234.00
Weather Scientific Comet CO2 Concentration Transmitter with 4-20 mA output, duct mount Comet
Weather Scientific Comet CO2 Concentration Transmitter with 4-20 mA output, duct mount Comet

Comet CO2 Concentration Transmitter with 4-20 mA output, duct mount

$541.00 - $541.00
$541.00
$541.00 - $541.00
$541.00
In stock

Comet CO2 concentration transmitter with 4-20mA output, built-in carbon dioxide sensor Duct mount CO2 concentration transmitter with 4-20 mA output...

View full details
$541.00 - $541.00
$541.00
$541.00 - $541.00
$541.00
Weather Scientific Comet CO2 Concentration Transmitter with 4-20mA output, built-in carbon dioxide sensor Comet

Comet CO2 Concentration Transmitter with 4-20mA output, built-in carbon dioxide sensor

$499.00 - $499.00
$499.00
$499.00 - $499.00
$499.00
In stock

Comet CO2 concentration transmitter with 4-20mA output, built-in carbon dioxide sensor CO2 - carbon dioxide level sensor. CO2 concentration transmi...

View full details
$499.00 - $499.00
$499.00
$499.00 - $499.00
$499.00
Weather Scientific Comet CO2 Concentration Transmitter with RS232 and two relay outputs Comet

Comet CO2 Concentration Transmitter with RS232 and two relay outputs

$588.00 - $588.00
$588.00
$588.00 - $588.00
$588.00
In stock

Comet CO2 concentration transmitter with RS232 and two relay outputs CO2 level transmitter with two output relays.Green LED shines - CO2 concentrat...

View full details
$588.00 - $588.00
$588.00
$588.00 - $588.00
$588.00
Weather Scientific Comet CO2 Concentration Transmitter with RS232 and two relay outputs Comet

Comet CO2 Concentration Transmitter with RS232 and two relay outputs

$1,323.00 - $1,323.00
$1,323.00
$1,323.00 - $1,323.00
$1,323.00
In stock

Comet CO2 concentration transmitter with RS232 and two relay outputs CO2 level transmitter with two output relays.The device is supplied with CO2 p...

View full details
$1,323.00 - $1,323.00
$1,323.00
$1,323.00 - $1,323.00
$1,323.00
Weather Scientific Comet CO2 Concentration Transmitter with RS232 interface, external carbon dioxide probe, 1m cable Comet

Comet CO2 Concentration Transmitter with RS232 interface, external carbon dioxide probe, 1m cable

$1,218.00 - $1,218.00
$1,218.00
$1,218.00 - $1,218.00
$1,218.00
In stock

Comet CO2 concentration transmitter with RS232 interface, external carbon dioxide probe, 1m cable CO2 - carbon dioxide level sensor.The device is s...

View full details
$1,218.00 - $1,218.00
$1,218.00
$1,218.00 - $1,218.00
$1,218.00
Weather Scientific Comet CO2 Concentration Transmitter with RS485 and two relay outputs Comet

Comet CO2 Concentration Transmitter with RS485 and two relay outputs

$1,392.00 - $1,392.00
$1,392.00
$1,392.00 - $1,392.00
$1,392.00
In stock

Comet CO2 concentration transmitter with RS485 and two relay outputs CO2 level transmitter with two output relays.The device is supplied with CO2 p...

View full details
$1,392.00 - $1,392.00
$1,392.00
$1,392.00 - $1,392.00
$1,392.00
Weather Scientific Comet CO2 Concentration Transmitter with RS485 and two relay outputs Comet

Comet CO2 Concentration Transmitter with RS485 and two relay outputs

$1,392.00 - $1,392.00
$1,392.00
$1,392.00 - $1,392.00
$1,392.00
In stock

Comet CO2 concentration transmitter with RS485 and two relay outputs CO2 level transmitter with two output relays.The device is supplied with CO2 p...

View full details
$1,392.00 - $1,392.00
$1,392.00
$1,392.00 - $1,392.00
$1,392.00
Weather Scientific Comet CO2 Concentration Transmitter with RS485 and two relay outputs Comet

Comet CO2 Concentration Transmitter with RS485 and two relay outputs

$636.00 - $636.00
$636.00
$636.00 - $636.00
$636.00
In stock

Comet CO2 concentration transmitter with RS485 and two relay outputs CO2 level transmitter with two output relays.Green LED shines - CO2 concentrat...

View full details
$636.00 - $636.00
$636.00
$636.00 - $636.00
$636.00
Weather Scientific Comet WebSensor - remote CO2 concentration with Ethernet interface Comet
Weather Scientific Comet WebSensor - remote CO2 concentration with Ethernet interface Comet

Comet WebSensor - remote CO2 concentration with Ethernet interface

$557.00 - $557.00
$557.00
$557.00 - $557.00
$557.00
In stock

Comet WebSensor - remote CO2 concentration with Ethernet interface CO2 - carbon dioxide t-line Web sensor. Remote alarm.Web Sensor with built-in co...

View full details
$557.00 - $557.00
$557.00
$557.00 - $557.00
$557.00
Weather Scientific Comet CO2 Concentration Transmitter with RS485 interface Comet

Comet CO2 Concentration Transmitter with RS485 interface

$536.00 - $536.00
$536.00
$536.00 - $536.00
$536.00
In stock

Comet CO2 concentration transmitter with RS485 interface CO2 - carbon dioxide level sensor.Green LED shines - CO2 concentration 0 to 1000 ppmYellow...

View full details
$536.00 - $536.00
$536.00
$536.00 - $536.00
$536.00
Weather Scientific Comet WebSensor - remote CO2 concentration thermometer hygrometer with Ethernet interface, duct mount Comet
Weather Scientific Comet WebSensor - remote CO2 concentration thermometer hygrometer with Ethernet interface, duct mount Comet

Comet WebSensor - remote CO2 concentration thermometer hygrometer with Ethernet interface, duct mount

$812.00 - $812.00
$812.00
$812.00 - $812.00
$812.00
In stock

Comet WebSensor - remote CO2 concentration thermometer hygrometer with Ethernet interface, duct mount Duct mount CO2 concentration t-line WebSensor...

View full details
$812.00 - $812.00
$812.00
$812.00 - $812.00
$812.00
Weather Scientific Comet WebSensor - remote CO2 concentration thermometer hygrometer with Ethernet interface Comet
Weather Scientific Comet WebSensor - remote CO2 concentration thermometer hygrometer with Ethernet interface Comet

Comet WebSensor - remote CO2 concentration thermometer hygrometer with Ethernet interface

$1,512.00 - $1,512.00
$1,512.00
$1,512.00 - $1,512.00
$1,512.00
In stock

Comet WebSensor - remote CO2 concentration thermometer hygrometer with Ethernet interface CO2 concentration, temperature and relative humidity t-li...

View full details
$1,512.00 - $1,512.00
$1,512.00
$1,512.00 - $1,512.00
$1,512.00
Weather Scientific Comet WebSensor - remote CO2 concentration thermometer hygrometer with Ethernet interface Comet
Weather Scientific Comet WebSensor - remote CO2 concentration thermometer hygrometer with Ethernet interface Comet

Comet WebSensor - remote CO2 concentration thermometer hygrometer with Ethernet interface

$735.00 - $735.00
$735.00
$735.00 - $735.00
$735.00
In stock

Comet WebSensor - remote CO2 concentration thermometer hygrometer with Ethernet interface CO2 concentration, temperature and relative humidity t-li...

View full details
$735.00 - $735.00
$735.00
$735.00 - $735.00
$735.00
Weather Scientific Comet Temperature, humidity, CO2 transmitter with two relay outputs Comet

Comet Temperature, humidity, CO2 transmitter with two relay outputs

$720.00 - $720.00
$720.00
$720.00 - $720.00
$720.00
In stock

Comet Temperature, humidity, CO2 transmitter with two relay outputs Temperature, humidity, CO2 level sensor with two output relays. TECHNICAL DATA ...

View full details
$720.00 - $720.00
$720.00
$720.00 - $720.00
$720.00