Elitech GSP-9G 4G Cellular Temperature Humidity Monitor, No WiFi Required, Power Failure Alarm, ±0.9°F Accuracy, IP65 Waterproof, 4.1" Color Curve Display, App, Email & SMS Alerts, External Probe

Protect every temperature-sensitive environment with the Elitech GSP-9G 4G cellular temperature and humidity monitor. Built for cold chain, warehousing, agriculture, and laboratory use, it replaces manual checks and unreliable Wi-Fi setups with true cellular connectivity: no gateway, no local Wi-Fi network, and no extra SIM card to install. Once paired with the Elitech app, you can see live readings, review curves, and adjust settings from anywhere.
Accuracy you can rely on.

The GSP-9G uses a Swiss Sensirion sensor for ±0.5°C (±0.9°F) temperature accuracy and ±5% RH humidity accuracy. Its aviation-connector external probe keeps sensor data stable even when the probe is placed inside a freezer, incubator, cold room, or greenhouse while the main unit stays easy to reach. An optional second probe can be added for multi-point monitoring.

Never miss an alert. When temperature or humidity crosses your thresholds, the GSP-9G responds with a local sound and light alarm, then pushes notifications through the app, email, and SMS. A dedicated power-failure alarm lets you know if supply is interrupted, giving you an extra layer of protection for sensitive goods.

Simple to install, simple to review. The 4.1-inch TFT color screen shows live temperature, humidity, and automatically plotted curves, with out-of-range data highlighted in red. Reports covering up to 30 days can be exported in one step, and up to one year of history is available for audits, compliance records, and trend analysis.

Built for demanding environments. With IP65 water and dust protection, a rechargeable 5000 mAh battery (about 30 days at 5-minute upload intervals), and a wall-mountable design, the GSP-9G is ready for warehouses, cold rooms, greenhouses, workshops, and other temperature-sensitive facilities.

4G CELLULAR, NO WI-FI OR GATEWAY NEEDED
The GSP-9G connects over 4G with built-in IoT connectivity, so it works in warehouses, greenhouses, cold rooms, workshops, and other locations where Wi-Fi is unavailable or unreliable. Check live temperature and humidity from the Elitech app or any web browser, wherever you are, and configure record intervals, alarm limits, and probe settings remotely.

TRIPLE-LAYER ALERTS SO YOU NEVER MISS AN OUT-OF-RANGE EVENT
When temperature or humidity crosses your threshold, the GSP-9G responds immediately with a local sound and light alarm, then sends app push, email, and SMS notifications so you are informed even when you are away. A dedicated power-failure alarm also alerts you the moment power is interrupted.

Model: GSP-9G-TH
Probe Type: Built-in temperature and humidity sensor
Temperature measurement accuracy: -20°C to 60°C (built-in)
Temperature resolution: 0.1°C
Humidity measurement range: 0～100%RH
Humidity measurement accuracy: ± 5%RH 
Humidity Resolution: 0.1%RH
Other sensors: Light sensor 
Measuring range: 0～65535 Lux
Certainty of measurement: ± (30% of measured value ± 30) Lux
Resolution ratio: 1 Lux

Elitech GSP-9G-TH Temperature and Humidity Data Logger Multilingual User Manual

Elitech GSP-9G Operation Instructions