Digital Alarm Clock, Humidity & Temperature Meter with 1-Meter External Probe (HTC-2)

Monitor indoor and outdoor microclimates simultaneously while keeping daily schedules on track with the HTC-2 Digital Alarm Clock, Thermometer & Hygrometer with External Wired Probe. Featuring an extra-large, multi-tier LCD screen and an external 1-meter waterproof wired sensor, this multi-function environmental station tracks indoor temperature, outdoor/probe temperature, indoor relative humidity, and calendar time simultaneously.

Whether used for home comfort monitoring, greenhouse management, wine cellars, reptile terrariums, or warehouse storage, the HTC-2 provides precise readings without needing complicated setups or external power adapters.

Key Features & Specifications

• Product Model: HTC-2 Digital Thermometer, Hygrometer & Alarm Clock.

• Dual-Zone Temperature Monitoring:

  • Indoor Temperature (IN): Measured directly via the unit's internal sensor across -10°C to +50°C (14°F to 122°F).

  • Outdoor / Remote Temperature (OUT): Measured via the wired probe across -50°C to +70°C (-58°F to 158°F).

  • Toggle between Celsius (°C) and Fahrenheit (°F) with a single button press.

• Indoor Relative Humidity Hygrometer:

  • Measures ambient humidity from 10% RH to 99% RH with a clear digital readout.

  • Accuracy: ±1°C (1.8°F) for temperature and ±5% RH for humidity.

• 1-Meter Heavy-Duty Sensor Probe:

  • Comes with a flexible, insulated 1-meter (approx. 3.3 ft) cable ending in a waterproof metal sensor bead.

  • Thread through window seals to measure outdoor temperatures, or position inside refrigerators, incubators, aquariums, and terrariums.

• Large 3-Tier Multi-Segment LCD Display:

  • Top Tier: Indoor temperature reading (IN).

  • Middle Tier: Outdoor/remote probe temperature reading (OUT).

  • Bottom Tier: Real-time Clock / Calendar Date alongside Relative Humidity (% RH).

• Memory & Climate Tracking:

  • MAX / MIN Memory: Press the memory button to recall highest and lowest recorded temperatures and humidity levels since the last reset.

• Integrated Clock & Daily Alarm:

  • 12-Hour (AM/PM) and 24-Hour (Military Time) formats.

  • Programmable daily wake-up alarm with audible electronic beep tones and hourly time chime option.

• Dual Mounting Options:

  • Desktop Stand: Sturdy flip-out kickstand on the rear casing for desk, shelf, or table placement.

  • Wall Mount: Integrated rear keyhole slot for fast hanging on screws or hooks.

• Battery-Operated & Cord-Free:

  • Operates on a single standard 1.5V AAA battery (no DC adapters, wall transformers, or mains wiring required).

Broad Universal Applications

• Home & Bedside: Maintain optimal sleep comfort by monitoring bedroom humidity and ambient temperature.

• Reptile Terrariums & Aquariums: Route the waterproof probe inside vivariums or brooders to monitor basking zones without exposing the main console to humidity.

• Greenhouses & Hydroponics: Place the console in your work area while the probe tracks root zones, grow tents, or outdoor climate conditions.

• Refrigeration & Storage: Monitor internal fridge, freezer, or wine cooler temperatures while the display remains mounted outside on the door.

• Logistics & Warehousing: Keep track of ambient storage conditions for humidity-sensitive items like paper goods, pharmaceuticals, or dry groceries.

Quick 4-Step Setup Guide

1. Insert Battery: Slide open the rear battery compartment and insert 1 standard AAA battery, observing polarity (+ / -).

2. Connect & Position Probe: Plug or unfurl the 1-meter sensor cable; route the probe tip to your target measurement area (e.g., outside a window or inside an enclosure).

3. Configure Time & Date: Press and hold the MODE button for 2–3 seconds until digits blink, then use the ADJ button to set minutes, hours, 12/24H format, month, and date.

4. Set Units & Recall: Press the small °C/°F button on the back to select your preferred unit; press MEMORY to check past MAX/MIN environmental swings.

Product description

Colour: Black and White

1. Temperature and Humidity Functions: With temperature range from -10 °C to +50 °C and humidity 10 % ∼ 99 % RH, temperature and humidity readings show directly

2. Time Function: Besides the basic time display, these item also has alarm clock and calendar display (month and date)

3. Memory Function: When pushing the button MEMORY , it could display the memory of temperature and humidity maximum and minimum

4. Simple Design: With the little bracket on its back side and total weight about 97g, it is easy to place and carry

4. Battery Operation: Require 1 x AAA battery (not include)

Product Specifications:

Temperature measurement range: -10 °C ∼ +50 °C (-14 °F ∼ +122 °F );

Temperature measurement accuracy: ±1°C (1.8°F)

Temperature resolution: ±0.1°C (0.2°F)
Humidity measurement range: 10 % ∼ 99 % RH
Humidity measurement accuracy: ±5%RH
Humidity resolution: 1%
Battery: 1xAAA 1.5V(not include )

Package Included:
1 x Digital LCD Thermometer Hygrometer
1 x User Manual